- GAP factor
- -9.9%
- Ascent
- 61 m
- Climb density
- 2.9 m/km
- Descent
- 539 m
- Net elevation
- -477 m
- Max absolute grade
- 21.5%
- Fee
- Unavailable
As of
Lowest GAP factor half marathons
The lowest gap factor half marathons, ranked from trusted raw-elevation route profiles across 184 qualifying races.
Ranking current as ofWhich race ranks first — and why is it Estes Park Marathon and Half Marathon?
Estes Park Marathon and Half Marathon leads this ranking on gap factor (-9.9%).
Compare Estes Park Marathon and Half Marathon vs Montana Marathon (Billings)
| # | Race | GAP factor | Ascent | Climb density | Descent | Net elevation | Max absolute grade | Fee | As of |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Estes Park Marathon and Half Marathon - colorado | -9.9% | 61 m | 2.9 m/km | 539 m | -477 m | 21.5% | Unavailable | |
| 2 | Montana Marathon (Billings) Half Marathon - montana | -4.2% | 73 m | 3.5 m/km | 266 m | -193 m | 11.6% | Unavailable | |
| 3 | Bozeman Half Marathon & 10K - montana | -4.2% | 67 m | 3.2 m/km | 249 m | -182 m | 6.7% | Unavailable | |
| 4 | Spurs Austin International Half (fka 3M Half Marathon) - texas | -2.3% | 42 m | 2.0 m/km | 143 m | -101 m | 8.1% | Unavailable | |
| 5 | Jack & Jill's Downhill Marathon & Half Half Marathon - washington | -1.5% | 311 m | 14.7 m/km | 574 m | -264 m | 31.2% | Unavailable | |
| 6 | Trieste Spring Run Half Marathon - italy | -1.5% | 63 m | 3.0 m/km | 134 m | -73 m | 20.7% | Unavailable | |
| 7 | St. Croix Crossing Half Marathon - minnesota | -1.0% | 124 m | 5.9 m/km | 189 m | -64 m | 10.8% | Unavailable | |
| 8 | Generali Genève Marathon Half Marathon - switzerland | -1.0% | 94 m | 4.4 m/km | 147 m | -54 m | 7.0% | Unavailable | |
| 9 | RAD Half Marathon & 10K (Asheville) - north-carolina | -0.9% | 135 m | 6.4 m/km | 206 m | -71 m | 11.9% | Unavailable | |
| 10 | Great North Run Half Marathon - north-east | -0.6% | 80 m | 3.8 m/km | 111 m | -32 m | 6.7% | £68 | |
| 11 | HooDoo Half Marathon (Fairbanks) - alaska | -0.6% | 133 m | 6.3 m/km | 180 m | -48 m | 10.2% | Unavailable | |
| 12 | Allianz Richmond Marathon Half Marathon - virginia | -0.5% | 89 m | 4.2 m/km | 126 m | -37 m | 8.7% | Unavailable | |
| 13 | Hoag OC Marathon Running Festival Half Marathon - california | -0.3% | 125 m | 5.9 m/km | 157 m | -32 m | 7.9% | Unavailable | |
| 14 | Zurich Rock 'n' Roll Running Series Madrid Half Marathon - spain | -0.3% | 124 m | 5.9 m/km | 151 m | -26 m | 11.2% | Unavailable | |
| 15 | Windermere Marathon (Spokane) Half Marathon - washington | -0.1% | 140 m | 6.6 m/km | 170 m | -30 m | 13.5% | Unavailable | |
| 16 | Zürich Marathon Half Marathon - switzerland | -0.0% | 21 m | 1.0 m/km | 23 m | -2 m | 2.2% | Unavailable | |
| 17 | Cheltenham Running Festival Half Marathon - south-west | 0.0% | 70 m | 3.3 m/km | 75 m | -5 m | 4.4% | £38 | |
| 18 | Summer Breeze Half Marathon (San Leandro) - california | 0.0% | 0 m | 0.0 m/km | 0 m | -0 m | 1.8% | Unavailable | |
| 19 | The Woodlands Marathon Half Marathon - texas | 0.0% | 52 m | 2.5 m/km | 55 m | -3 m | 3.5% | Unavailable | |
| 20 | Naturosa Catania Marathon Half Marathon - italy | 0.0% | 11 m | 0.5 m/km | 12 m | -0 m | 3.1% | Unavailable | |
| 21 | Vale of York Half Marathon - yorkshire | 0.0% | 27 m | 1.3 m/km | 27 m | 0 m | 1.8% | £28 | |
| 22 | Tirol läuft (Innsbruck) Half Marathon - austria | 0.0% | 40 m | 1.9 m/km | 42 m | -2 m | 5.5% | Unavailable | |
| 23 | Medio Maratón de Santander Half Marathon - spain | 0.0% | 28 m | 1.3 m/km | 28 m | -0 m | 3.2% | Unavailable | |
| 24 | Bath & Bristol Railway Races Half Marathon - south-west | 0.0% | 33 m | 1.6 m/km | 33 m | 1 m | 2.4% | £46 | |
| 25 | The Asheville Marathon & Half Half Marathon - north-carolina | 0.1% | 260 m | 12.3 m/km | 322 m | -61 m | 12.1% | Unavailable | |
| 26 | Idaho Falls Marathon Half Marathon - idaho | 0.1% | 50 m | 2.4 m/km | 52 m | -3 m | 9.1% | Unavailable | |
| 27 | DRC's The Half (Dallas Running Club) Half Marathon - texas | 0.1% | 92 m | 4.4 m/km | 108 m | -16 m | 13.3% | Unavailable | |
| 28 | ATW Bedford 10k & Half Marathon - east-of-england | 0.1% | 15 m | 0.7 m/km | 15 m | 0 m | 2.9% | Unavailable | |
| 29 | Novant Health Wilmington Marathon Half Marathon - north-carolina | 0.1% | 46 m | 2.2 m/km | 47 m | -0 m | 4.6% | Unavailable | |
| 30 | Mississippi River Marathon Half Marathon - mississippi | 0.1% | 36 m | 1.7 m/km | 36 m | 0 m | 6.1% | Unavailable | |
| 31 | NLB Ljubljana Marathon Half Marathon - slovenia | 0.1% | 53 m | 2.5 m/km | 52 m | 0 m | 3.9% | Unavailable | |
| 32 | Mizuno Swansea Half Marathon - wales | 0.1% | 44 m | 2.1 m/km | 44 m | -0 m | 5.6% | Unavailable | |
| 33 | Hartlepool Half Marathon - north-east | 0.1% | 50 m | 2.4 m/km | 52 m | -2 m | 6.7% | Unavailable | |
| 34 | Martian Invasion of Races Half Marathon - michigan | 0.1% | 58 m | 2.7 m/km | 58 m | 0 m | 5.4% | Unavailable | |
| 35 | Toulouse Métropole Run Experience Half Marathon - france | 0.1% | 114 m | 5.4 m/km | 123 m | -10 m | 11.2% | Unavailable | |
| 36 | Buffalo Stampede Half Marathon (Kearney) - nebraska | 0.1% | 75 m | 3.6 m/km | 78 m | -3 m | 7.0% | Unavailable | |
| 37 | Bear Trail Half Marathon & 10K - delaware | 0.2% | 73 m | 3.5 m/km | 73 m | -0 m | 4.9% | Unavailable | |
| 38 | Bay of Fundy International Marathon Half Marathon - maine | 0.2% | 176 m | 8.3 m/km | 203 m | -27 m | 12.0% | Unavailable | |
| 39 | Bari Med Marathon Half Marathon - italy | 0.2% | 97 m | 4.6 m/km | 99 m | -3 m | 6.3% | Unavailable | |
| 40 | Goodyear Half Marathon & 10K (Akron) - ohio | 0.2% | 109 m | 5.2 m/km | 119 m | -9 m | 12.7% | Unavailable | |
| 41 | Parkway Subaru Battleship Half Marathon & GFL 10K|5K (Wilmington) - north-carolina | 0.2% | 84 m | 4.0 m/km | 84 m | 0 m | 7.0% | Unavailable | |
| 42 | Cambridge Half Marathon - east-of-england | 0.2% | 95 m | 4.5 m/km | 95 m | -0 m | 4.7% | Unavailable | |
| 43 | Maine Coast Marathon Half Marathon - maine | 0.2% | 68 m | 3.2 m/km | 67 m | 1 m | 8.0% | Unavailable | |
| 44 | Reims Champagne Run Half Marathon - france | 0.2% | 103 m | 4.9 m/km | 105 m | -2 m | 4.9% | Unavailable | |
| 45 | Wilmslow Half Marathon - north-west | 0.2% | 111 m | 5.2 m/km | 114 m | -3 m | 5.9% | Unavailable | |
| 46 | Belfast City Marathon Half Marathon - northern-ireland | 0.2% | 75 m | 3.6 m/km | 75 m | 0 m | 5.9% | £42 | |
| 47 | Indiana Women's Running Festival (Indy Women's Half Marathon), Carmel - indiana | 0.2% | 86 m | 4.1 m/km | 85 m | 0 m | 5.4% | Unavailable | |
| 48 | Belfast City Half Marathon - northern-ireland | 0.2% | 88 m | 4.2 m/km | 89 m | -0 m | 8.6% | £50 | |
| 49 | University of Charleston Marathon (Charleston, WV) Half Marathon - west-virginia | 0.2% | 74 m | 3.5 m/km | 74 m | 0 m | 7.0% | Unavailable | |
| 50 | Regeneron Great Limerick Run Half Marathon - ireland | 0.2% | 114 m | 5.4 m/km | 117 m | -3 m | 5.4% | Unavailable | |
| 51 | Mein Freiburg Marathon Half Marathon - germany | 0.2% | 105 m | 5.0 m/km | 104 m | 1 m | 6.2% | Unavailable | |
| 52 | Stormin' Norman Run Half Marathon - oklahoma | 0.3% | 94 m | 4.4 m/km | 94 m | -0 m | 7.4% | Unavailable | |
| 53 | The Fury Run (Stormin' Norman Run), Norman Half Marathon - oklahoma | 0.3% | 94 m | 4.4 m/km | 94 m | -0 m | 7.4% | Unavailable | |
| 54 | Debrecen Maraton Half Marathon - hungary | 0.3% | 94 m | 4.5 m/km | 94 m | 0 m | 5.6% | Unavailable | |
| 55 | Paavo Nurmi Marathon Half Marathon - finland | 0.3% | 91 m | 4.3 m/km | 92 m | -1 m | 9.1% | Unavailable | |
| 56 | Stuttgart-Lauf Half Marathon - germany | 0.3% | 100 m | 4.7 m/km | 100 m | -1 m | 9.8% | Unavailable | |
| 57 | Nagyerdei Terep Maraton (Debrecen) Half Marathon - hungary | 0.3% | 72 m | 3.4 m/km | 69 m | 3 m | 9.9% | Unavailable | |
| 58 | Maratona di Pisa Half Marathon - italy | 0.3% | 72 m | 3.4 m/km | 67 m | 4 m | 5.6% | Unavailable | |
| 59 | Albany COMBOS Marathon & Half Marathon - georgia | 0.3% | 154 m | 7.3 m/km | 160 m | -7 m | 5.7% | Unavailable | |
| 60 | Garmin New Forest Marathon Half Marathon - south-east | 0.3% | 122 m | 5.8 m/km | 122 m | 0 m | 5.1% | £54 | |
| 61 | David Cliff Wokingham Half Marathon - south-east | 0.3% | 117 m | 5.6 m/km | 117 m | -0 m | 5.8% | £43 | |
| 62 | Mercy Health Glass City Marathon Half Marathon - ohio | 0.3% | 92 m | 4.4 m/km | 88 m | 4 m | 6.2% | Unavailable | |
| 63 | Run Leicester Half Marathon - east-midlands | 0.3% | 114 m | 5.4 m/km | 114 m | -0 m | 7.9% | £33 | |
| 64 | Sioux Falls Skedaddle Half Marathon - south-dakota | 0.3% | 133 m | 6.3 m/km | 140 m | -7 m | 13.3% | Unavailable | |
| 65 | Marathon des Alpes-Maritimes Nice-Cannes Half Marathon - france | 0.4% | 119 m | 5.9 m/km | 121 m | -2 m | 11.7% | Unavailable | |
| 66 | ZeroWind Romeo&Giulietta Run Half Marathon (Verona) - italy | 0.4% | 55 m | 2.6 m/km | 42 m | 12 m | 7.3% | Unavailable | |
| 67 | SwissCityMarathon – Lucerne Half Marathon - switzerland | 0.4% | 103 m | 4.9 m/km | 104 m | -2 m | 7.9% | Unavailable | |
| 68 | Cleveland Marathon Half Marathon - ohio | 0.4% | 102 m | 4.8 m/km | 102 m | -0 m | 11.9% | Unavailable | |
| 69 | Regensburg Marathon Half Marathon - germany | 0.4% | 116 m | 5.5 m/km | 116 m | 0 m | 9.5% | Unavailable | |
| 70 | Wallis Sands Half Marathon - new-hampshire | 0.4% | 128 m | 6.1 m/km | 129 m | 0 m | 12.8% | Unavailable | |
| 71 | YMCA Harrisburg Marathon, Half, and Relay Presented by Enders Insurance Half Marathon - pennsylvania | 0.4% | 112 m | 5.3 m/km | 113 m | -0 m | 11.1% | Unavailable | |
| 72 | Trondheim Maraton Half Marathon - norway | 0.4% | 127 m | 6.0 m/km | 125 m | 1 m | 8.3% | Unavailable | |
| 73 | Amica Newport Marathon & Half Marathon - rhode-island | 0.4% | 119 m | 5.7 m/km | 119 m | 0 m | 8.1% | Unavailable | |
| 74 | Haspa Marathon Hamburg Half Marathon - germany | 0.5% | 76 m | 3.6 m/km | 66 m | 11 m | 7.2% | Unavailable | |
| 75 | Colchester Half Marathon - east-of-england | 0.5% | 114 m | 5.4 m/km | 114 m | 0 m | 9.5% | £37 | |
| 76 | Endurancelife Suffolk (Dunwich) Half Marathon - east-of-england | 0.5% | 123 m | 5.7 m/km | 124 m | 0 m | 11.0% | £47 | |
| 77 | MountainOne Steel Rail Races (Adams) Half Marathon - massachusetts | 0.5% | 114 m | 5.4 m/km | 114 m | -0 m | 10.6% | Unavailable | |
| 78 | Cajun Country Run Half Marathon - louisiana | 0.5% | 147 m | 7.0 m/km | 147 m | 0 m | 9.5% | Unavailable | |
| 79 | Göteborgsvarvet Half Marathon - sweden | 0.5% | 131 m | 6.2 m/km | 133 m | -2 m | 7.6% | Unavailable | |
| 80 | Büchl Éjszakai Félmaraton (Győr) Half Marathon - hungary | 0.5% | 144 m | 6.8 m/km | 143 m | 1 m | 7.2% | Unavailable | |
| 81 | Michelob Ultra El Paso Marathon Half Marathon - texas | 0.5% | 151 m | 7.2 m/km | 150 m | 1 m | 9.4% | Unavailable | |
| 82 | Vienna City Marathon Half Marathon - austria | 0.5% | 71 m | 3.4 m/km | 58 m | 13 m | 8.2% | Unavailable | |
| 83 | Sioux Falls Marathon Half Marathon - south-dakota | 0.5% | 149 m | 7.1 m/km | 151 m | -2 m | 8.0% | Unavailable | |
| 84 | DNB Oslo Marathon Half Marathon - norway | 0.5% | 153 m | 7.2 m/km | 153 m | -0 m | 6.5% | Unavailable | |
| 85 | City of Colleges Half Marathon - arkansas | 0.5% | 134 m | 6.3 m/km | 135 m | -0 m | 9.2% | Unavailable | |
| 86 | Thames Meander Marathon (London) Half Marathon - london | 0.5% | 159 m | 7.6 m/km | 159 m | 0 m | 6.5% | Unavailable | |
| 87 | Helsinki City Marathon Half Marathon - finland | 0.5% | 122 m | 5.8 m/km | 117 m | 6 m | 7.1% | Unavailable | |
| 88 | Milton Keynes Marathon Half Marathon - south-east | 0.5% | 162 m | 7.7 m/km | 165 m | -3 m | 8.1% | Unavailable | |
| 89 | Omaha Marathon Half Marathon - nebraska | 0.5% | 150 m | 7.1 m/km | 151 m | -1 m | 11.5% | Unavailable | |
| 90 | The Original Las Vegas Marathon Half Marathon - nevada | 0.6% | 164 m | 7.8 m/km | 164 m | 0 m | 11.9% | Unavailable | |
| 91 | Madison Marathon (Madison, Wisconsin) Half Marathon - wisconsin | 0.6% | 112 m | 5.3 m/km | 106 m | 6 m | 8.7% | Unavailable | |
| 92 | Maine Marathon (Portland) Half Marathon - maine | 0.6% | 133 m | 6.3 m/km | 133 m | 0 m | 9.8% | Unavailable | |
| 93 | Wisconsin Lakeside Half Marathon & 5K (Monona) - wisconsin | 0.6% | 126 m | 6.0 m/km | 127 m | -0 m | 14.6% | Unavailable | |
| 94 | Rimi Riga Marathon Half Marathon - latvia | 0.6% | 135 m | 6.4 m/km | 134 m | 1 m | 18.7% | Unavailable | |
| 95 | PeaceHealth Appletree Marathon Half Marathon - washington | 0.6% | 147 m | 7.0 m/km | 147 m | 1 m | 8.0% | Unavailable | |
| 96 | Weymouth Half Marathon - south-west | 0.6% | 146 m | 6.9 m/km | 146 m | -1 m | 9.2% | £41 | |
| 97 | Charlotte Racefest at SouthPark Half Marathon and 10K - north-carolina | 0.6% | 70 m | 3.3 m/km | 59 m | 11 m | 15.6% | Unavailable | |
| 98 | Phoenix 10k & Half Marathon - arizona | 0.6% | 169 m | 8.0 m/km | 169 m | 0 m | 7.3% | Unavailable | |
| 99 | OhioHealth Capital City Half & Quarter Marathon (Columbus) Half Marathon - ohio | 0.6% | 142 m | 6.7 m/km | 142 m | 0 m | 14.9% | Unavailable | |
| 100 | Midnattssolmaraton (Midnight Sun Marathon), Tromsø Half Marathon - norway | 0.7% | 148 m | 7.0 m/km | 147 m | 2 m | 7.5% | Unavailable |
- GAP factor
- -4.2%
- Ascent
- 73 m
- Climb density
- 3.5 m/km
- Descent
- 266 m
- Net elevation
- -193 m
- Max absolute grade
- 11.6%
- Fee
- Unavailable
As of
Bozeman Half Marathon & 10Kmontana
- GAP factor
- -4.2%
- Ascent
- 67 m
- Climb density
- 3.2 m/km
- Descent
- 249 m
- Net elevation
- -182 m
- Max absolute grade
- 6.7%
- Fee
- Unavailable
As of
- GAP factor
- -2.3%
- Ascent
- 42 m
- Climb density
- 2.0 m/km
- Descent
- 143 m
- Net elevation
- -101 m
- Max absolute grade
- 8.1%
- Fee
- Unavailable
As of
- GAP factor
- -1.5%
- Ascent
- 311 m
- Climb density
- 14.7 m/km
- Descent
- 574 m
- Net elevation
- -264 m
- Max absolute grade
- 31.2%
- Fee
- Unavailable
As of
- GAP factor
- -1.5%
- Ascent
- 63 m
- Climb density
- 3.0 m/km
- Descent
- 134 m
- Net elevation
- -73 m
- Max absolute grade
- 20.7%
- Fee
- Unavailable
As of
St. Croix Crossing Half Marathonminnesota
- GAP factor
- -1.0%
- Ascent
- 124 m
- Climb density
- 5.9 m/km
- Descent
- 189 m
- Net elevation
- -64 m
- Max absolute grade
- 10.8%
- Fee
- Unavailable
As of
Generali Genève Marathon Half Marathonswitzerland
- GAP factor
- -1.0%
- Ascent
- 94 m
- Climb density
- 4.4 m/km
- Descent
- 147 m
- Net elevation
- -54 m
- Max absolute grade
- 7.0%
- Fee
- Unavailable
As of
RAD Half Marathon & 10K (Asheville)north-carolina
- GAP factor
- -0.9%
- Ascent
- 135 m
- Climb density
- 6.4 m/km
- Descent
- 206 m
- Net elevation
- -71 m
- Max absolute grade
- 11.9%
- Fee
- Unavailable
As of
Great North Run Half Marathonnorth-east
- GAP factor
- -0.6%
- Ascent
- 80 m
- Climb density
- 3.8 m/km
- Descent
- 111 m
- Net elevation
- -32 m
- Max absolute grade
- 6.7%
- Fee
- £68
As of
- GAP factor
- -0.6%
- Ascent
- 133 m
- Climb density
- 6.3 m/km
- Descent
- 180 m
- Net elevation
- -48 m
- Max absolute grade
- 10.2%
- Fee
- Unavailable
As of
- GAP factor
- -0.5%
- Ascent
- 89 m
- Climb density
- 4.2 m/km
- Descent
- 126 m
- Net elevation
- -37 m
- Max absolute grade
- 8.7%
- Fee
- Unavailable
As of
- GAP factor
- -0.3%
- Ascent
- 125 m
- Climb density
- 5.9 m/km
- Descent
- 157 m
- Net elevation
- -32 m
- Max absolute grade
- 7.9%
- Fee
- Unavailable
As of
- GAP factor
- -0.3%
- Ascent
- 124 m
- Climb density
- 5.9 m/km
- Descent
- 151 m
- Net elevation
- -26 m
- Max absolute grade
- 11.2%
- Fee
- Unavailable
As of
- GAP factor
- -0.1%
- Ascent
- 140 m
- Climb density
- 6.6 m/km
- Descent
- 170 m
- Net elevation
- -30 m
- Max absolute grade
- 13.5%
- Fee
- Unavailable
As of
Zürich Marathon Half Marathonswitzerland
- GAP factor
- -0.0%
- Ascent
- 21 m
- Climb density
- 1.0 m/km
- Descent
- 23 m
- Net elevation
- -2 m
- Max absolute grade
- 2.2%
- Fee
- Unavailable
As of
- GAP factor
- 0.0%
- Ascent
- 70 m
- Climb density
- 3.3 m/km
- Descent
- 75 m
- Net elevation
- -5 m
- Max absolute grade
- 4.4%
- Fee
- £38
As of
- GAP factor
- 0.0%
- Ascent
- 0 m
- Climb density
- 0.0 m/km
- Descent
- 0 m
- Net elevation
- -0 m
- Max absolute grade
- 1.8%
- Fee
- Unavailable
As of
- GAP factor
- 0.0%
- Ascent
- 52 m
- Climb density
- 2.5 m/km
- Descent
- 55 m
- Net elevation
- -3 m
- Max absolute grade
- 3.5%
- Fee
- Unavailable
As of
- GAP factor
- 0.0%
- Ascent
- 11 m
- Climb density
- 0.5 m/km
- Descent
- 12 m
- Net elevation
- -0 m
- Max absolute grade
- 3.1%
- Fee
- Unavailable
As of
Vale of York Half Marathonyorkshire
- GAP factor
- 0.0%
- Ascent
- 27 m
- Climb density
- 1.3 m/km
- Descent
- 27 m
- Net elevation
- 0 m
- Max absolute grade
- 1.8%
- Fee
- £28
As of
- GAP factor
- 0.0%
- Ascent
- 40 m
- Climb density
- 1.9 m/km
- Descent
- 42 m
- Net elevation
- -2 m
- Max absolute grade
- 5.5%
- Fee
- Unavailable
As of
- GAP factor
- 0.0%
- Ascent
- 28 m
- Climb density
- 1.3 m/km
- Descent
- 28 m
- Net elevation
- -0 m
- Max absolute grade
- 3.2%
- Fee
- Unavailable
As of
- GAP factor
- 0.0%
- Ascent
- 33 m
- Climb density
- 1.6 m/km
- Descent
- 33 m
- Net elevation
- 1 m
- Max absolute grade
- 2.4%
- Fee
- £46
As of
The Asheville Marathon & Half Half Marathonnorth-carolina
- GAP factor
- 0.1%
- Ascent
- 260 m
- Climb density
- 12.3 m/km
- Descent
- 322 m
- Net elevation
- -61 m
- Max absolute grade
- 12.1%
- Fee
- Unavailable
As of
- GAP factor
- 0.1%
- Ascent
- 50 m
- Climb density
- 2.4 m/km
- Descent
- 52 m
- Net elevation
- -3 m
- Max absolute grade
- 9.1%
- Fee
- Unavailable
As of
- GAP factor
- 0.1%
- Ascent
- 92 m
- Climb density
- 4.4 m/km
- Descent
- 108 m
- Net elevation
- -16 m
- Max absolute grade
- 13.3%
- Fee
- Unavailable
As of
ATW Bedford 10k & Half Marathoneast-of-england
- GAP factor
- 0.1%
- Ascent
- 15 m
- Climb density
- 0.7 m/km
- Descent
- 15 m
- Net elevation
- 0 m
- Max absolute grade
- 2.9%
- Fee
- Unavailable
As of
Novant Health Wilmington Marathon Half Marathonnorth-carolina
- GAP factor
- 0.1%
- Ascent
- 46 m
- Climb density
- 2.2 m/km
- Descent
- 47 m
- Net elevation
- -0 m
- Max absolute grade
- 4.6%
- Fee
- Unavailable
As of
Mississippi River Marathon Half Marathonmississippi
- GAP factor
- 0.1%
- Ascent
- 36 m
- Climb density
- 1.7 m/km
- Descent
- 36 m
- Net elevation
- 0 m
- Max absolute grade
- 6.1%
- Fee
- Unavailable
As of
- GAP factor
- 0.1%
- Ascent
- 53 m
- Climb density
- 2.5 m/km
- Descent
- 52 m
- Net elevation
- 0 m
- Max absolute grade
- 3.9%
- Fee
- Unavailable
As of
- GAP factor
- 0.1%
- Ascent
- 44 m
- Climb density
- 2.1 m/km
- Descent
- 44 m
- Net elevation
- -0 m
- Max absolute grade
- 5.6%
- Fee
- Unavailable
As of
Hartlepool Half Marathonnorth-east
- GAP factor
- 0.1%
- Ascent
- 50 m
- Climb density
- 2.4 m/km
- Descent
- 52 m
- Net elevation
- -2 m
- Max absolute grade
- 6.7%
- Fee
- Unavailable
As of
- GAP factor
- 0.1%
- Ascent
- 58 m
- Climb density
- 2.7 m/km
- Descent
- 58 m
- Net elevation
- 0 m
- Max absolute grade
- 5.4%
- Fee
- Unavailable
As of
- GAP factor
- 0.1%
- Ascent
- 114 m
- Climb density
- 5.4 m/km
- Descent
- 123 m
- Net elevation
- -10 m
- Max absolute grade
- 11.2%
- Fee
- Unavailable
As of
- GAP factor
- 0.1%
- Ascent
- 75 m
- Climb density
- 3.6 m/km
- Descent
- 78 m
- Net elevation
- -3 m
- Max absolute grade
- 7.0%
- Fee
- Unavailable
As of
Bear Trail Half Marathon & 10Kdelaware
- GAP factor
- 0.2%
- Ascent
- 73 m
- Climb density
- 3.5 m/km
- Descent
- 73 m
- Net elevation
- -0 m
- Max absolute grade
- 4.9%
- Fee
- Unavailable
As of
- GAP factor
- 0.2%
- Ascent
- 176 m
- Climb density
- 8.3 m/km
- Descent
- 203 m
- Net elevation
- -27 m
- Max absolute grade
- 12.0%
- Fee
- Unavailable
As of
- GAP factor
- 0.2%
- Ascent
- 97 m
- Climb density
- 4.6 m/km
- Descent
- 99 m
- Net elevation
- -3 m
- Max absolute grade
- 6.3%
- Fee
- Unavailable
As of
- GAP factor
- 0.2%
- Ascent
- 109 m
- Climb density
- 5.2 m/km
- Descent
- 119 m
- Net elevation
- -9 m
- Max absolute grade
- 12.7%
- Fee
- Unavailable
As of
- GAP factor
- 0.2%
- Ascent
- 84 m
- Climb density
- 4.0 m/km
- Descent
- 84 m
- Net elevation
- 0 m
- Max absolute grade
- 7.0%
- Fee
- Unavailable
As of
Cambridge Half Marathoneast-of-england
- GAP factor
- 0.2%
- Ascent
- 95 m
- Climb density
- 4.5 m/km
- Descent
- 95 m
- Net elevation
- -0 m
- Max absolute grade
- 4.7%
- Fee
- Unavailable
As of
- GAP factor
- 0.2%
- Ascent
- 68 m
- Climb density
- 3.2 m/km
- Descent
- 67 m
- Net elevation
- 1 m
- Max absolute grade
- 8.0%
- Fee
- Unavailable
As of
- GAP factor
- 0.2%
- Ascent
- 103 m
- Climb density
- 4.9 m/km
- Descent
- 105 m
- Net elevation
- -2 m
- Max absolute grade
- 4.9%
- Fee
- Unavailable
As of
Wilmslow Half Marathonnorth-west
- GAP factor
- 0.2%
- Ascent
- 111 m
- Climb density
- 5.2 m/km
- Descent
- 114 m
- Net elevation
- -3 m
- Max absolute grade
- 5.9%
- Fee
- Unavailable
As of
Belfast City Marathon Half Marathonnorthern-ireland
- GAP factor
- 0.2%
- Ascent
- 75 m
- Climb density
- 3.6 m/km
- Descent
- 75 m
- Net elevation
- 0 m
- Max absolute grade
- 5.9%
- Fee
- £42
As of
- GAP factor
- 0.2%
- Ascent
- 86 m
- Climb density
- 4.1 m/km
- Descent
- 85 m
- Net elevation
- 0 m
- Max absolute grade
- 5.4%
- Fee
- Unavailable
As of
Belfast City Half Marathonnorthern-ireland
- GAP factor
- 0.2%
- Ascent
- 88 m
- Climb density
- 4.2 m/km
- Descent
- 89 m
- Net elevation
- -0 m
- Max absolute grade
- 8.6%
- Fee
- £50
As of
- GAP factor
- 0.2%
- Ascent
- 74 m
- Climb density
- 3.5 m/km
- Descent
- 74 m
- Net elevation
- 0 m
- Max absolute grade
- 7.0%
- Fee
- Unavailable
As of
- GAP factor
- 0.2%
- Ascent
- 114 m
- Climb density
- 5.4 m/km
- Descent
- 117 m
- Net elevation
- -3 m
- Max absolute grade
- 5.4%
- Fee
- Unavailable
As of
- GAP factor
- 0.2%
- Ascent
- 105 m
- Climb density
- 5.0 m/km
- Descent
- 104 m
- Net elevation
- 1 m
- Max absolute grade
- 6.2%
- Fee
- Unavailable
As of
- GAP factor
- 0.3%
- Ascent
- 94 m
- Climb density
- 4.4 m/km
- Descent
- 94 m
- Net elevation
- -0 m
- Max absolute grade
- 7.4%
- Fee
- Unavailable
As of
- GAP factor
- 0.3%
- Ascent
- 94 m
- Climb density
- 4.4 m/km
- Descent
- 94 m
- Net elevation
- -0 m
- Max absolute grade
- 7.4%
- Fee
- Unavailable
As of
- GAP factor
- 0.3%
- Ascent
- 94 m
- Climb density
- 4.5 m/km
- Descent
- 94 m
- Net elevation
- 0 m
- Max absolute grade
- 5.6%
- Fee
- Unavailable
As of
- GAP factor
- 0.3%
- Ascent
- 91 m
- Climb density
- 4.3 m/km
- Descent
- 92 m
- Net elevation
- -1 m
- Max absolute grade
- 9.1%
- Fee
- Unavailable
As of
Stuttgart-Lauf Half Marathongermany
- GAP factor
- 0.3%
- Ascent
- 100 m
- Climb density
- 4.7 m/km
- Descent
- 100 m
- Net elevation
- -1 m
- Max absolute grade
- 9.8%
- Fee
- Unavailable
As of
- GAP factor
- 0.3%
- Ascent
- 72 m
- Climb density
- 3.4 m/km
- Descent
- 69 m
- Net elevation
- 3 m
- Max absolute grade
- 9.9%
- Fee
- Unavailable
As of
- GAP factor
- 0.3%
- Ascent
- 72 m
- Climb density
- 3.4 m/km
- Descent
- 67 m
- Net elevation
- 4 m
- Max absolute grade
- 5.6%
- Fee
- Unavailable
As of
- GAP factor
- 0.3%
- Ascent
- 154 m
- Climb density
- 7.3 m/km
- Descent
- 160 m
- Net elevation
- -7 m
- Max absolute grade
- 5.7%
- Fee
- Unavailable
As of
Garmin New Forest Marathon Half Marathonsouth-east
- GAP factor
- 0.3%
- Ascent
- 122 m
- Climb density
- 5.8 m/km
- Descent
- 122 m
- Net elevation
- 0 m
- Max absolute grade
- 5.1%
- Fee
- £54
As of
David Cliff Wokingham Half Marathonsouth-east
- GAP factor
- 0.3%
- Ascent
- 117 m
- Climb density
- 5.6 m/km
- Descent
- 117 m
- Net elevation
- -0 m
- Max absolute grade
- 5.8%
- Fee
- £43
As of
- GAP factor
- 0.3%
- Ascent
- 92 m
- Climb density
- 4.4 m/km
- Descent
- 88 m
- Net elevation
- 4 m
- Max absolute grade
- 6.2%
- Fee
- Unavailable
As of
Run Leicester Half Marathoneast-midlands
- GAP factor
- 0.3%
- Ascent
- 114 m
- Climb density
- 5.4 m/km
- Descent
- 114 m
- Net elevation
- -0 m
- Max absolute grade
- 7.9%
- Fee
- £33
As of
Sioux Falls Skedaddle Half Marathonsouth-dakota
- GAP factor
- 0.3%
- Ascent
- 133 m
- Climb density
- 6.3 m/km
- Descent
- 140 m
- Net elevation
- -7 m
- Max absolute grade
- 13.3%
- Fee
- Unavailable
As of
- GAP factor
- 0.4%
- Ascent
- 119 m
- Climb density
- 5.9 m/km
- Descent
- 121 m
- Net elevation
- -2 m
- Max absolute grade
- 11.7%
- Fee
- Unavailable
As of
- GAP factor
- 0.4%
- Ascent
- 55 m
- Climb density
- 2.6 m/km
- Descent
- 42 m
- Net elevation
- 12 m
- Max absolute grade
- 7.3%
- Fee
- Unavailable
As of
SwissCityMarathon – Lucerne Half Marathonswitzerland
- GAP factor
- 0.4%
- Ascent
- 103 m
- Climb density
- 4.9 m/km
- Descent
- 104 m
- Net elevation
- -2 m
- Max absolute grade
- 7.9%
- Fee
- Unavailable
As of
- GAP factor
- 0.4%
- Ascent
- 102 m
- Climb density
- 4.8 m/km
- Descent
- 102 m
- Net elevation
- -0 m
- Max absolute grade
- 11.9%
- Fee
- Unavailable
As of
- GAP factor
- 0.4%
- Ascent
- 116 m
- Climb density
- 5.5 m/km
- Descent
- 116 m
- Net elevation
- 0 m
- Max absolute grade
- 9.5%
- Fee
- Unavailable
As of
Wallis Sands Half Marathonnew-hampshire
- GAP factor
- 0.4%
- Ascent
- 128 m
- Climb density
- 6.1 m/km
- Descent
- 129 m
- Net elevation
- 0 m
- Max absolute grade
- 12.8%
- Fee
- Unavailable
As of
- GAP factor
- 0.4%
- Ascent
- 112 m
- Climb density
- 5.3 m/km
- Descent
- 113 m
- Net elevation
- -0 m
- Max absolute grade
- 11.1%
- Fee
- Unavailable
As of
- GAP factor
- 0.4%
- Ascent
- 127 m
- Climb density
- 6.0 m/km
- Descent
- 125 m
- Net elevation
- 1 m
- Max absolute grade
- 8.3%
- Fee
- Unavailable
As of
Amica Newport Marathon & Half Marathonrhode-island
- GAP factor
- 0.4%
- Ascent
- 119 m
- Climb density
- 5.7 m/km
- Descent
- 119 m
- Net elevation
- 0 m
- Max absolute grade
- 8.1%
- Fee
- Unavailable
As of
- GAP factor
- 0.5%
- Ascent
- 76 m
- Climb density
- 3.6 m/km
- Descent
- 66 m
- Net elevation
- 11 m
- Max absolute grade
- 7.2%
- Fee
- Unavailable
As of
Colchester Half Marathoneast-of-england
- GAP factor
- 0.5%
- Ascent
- 114 m
- Climb density
- 5.4 m/km
- Descent
- 114 m
- Net elevation
- 0 m
- Max absolute grade
- 9.5%
- Fee
- £37
As of
Endurancelife Suffolk (Dunwich) Half Marathoneast-of-england
- GAP factor
- 0.5%
- Ascent
- 123 m
- Climb density
- 5.7 m/km
- Descent
- 124 m
- Net elevation
- 0 m
- Max absolute grade
- 11.0%
- Fee
- £47
As of
MountainOne Steel Rail Races (Adams) Half Marathonmassachusetts
- GAP factor
- 0.5%
- Ascent
- 114 m
- Climb density
- 5.4 m/km
- Descent
- 114 m
- Net elevation
- -0 m
- Max absolute grade
- 10.6%
- Fee
- Unavailable
As of
Cajun Country Run Half Marathonlouisiana
- GAP factor
- 0.5%
- Ascent
- 147 m
- Climb density
- 7.0 m/km
- Descent
- 147 m
- Net elevation
- 0 m
- Max absolute grade
- 9.5%
- Fee
- Unavailable
As of
- GAP factor
- 0.5%
- Ascent
- 131 m
- Climb density
- 6.2 m/km
- Descent
- 133 m
- Net elevation
- -2 m
- Max absolute grade
- 7.6%
- Fee
- Unavailable
As of
- GAP factor
- 0.5%
- Ascent
- 144 m
- Climb density
- 6.8 m/km
- Descent
- 143 m
- Net elevation
- 1 m
- Max absolute grade
- 7.2%
- Fee
- Unavailable
As of
- GAP factor
- 0.5%
- Ascent
- 151 m
- Climb density
- 7.2 m/km
- Descent
- 150 m
- Net elevation
- 1 m
- Max absolute grade
- 9.4%
- Fee
- Unavailable
As of
- GAP factor
- 0.5%
- Ascent
- 71 m
- Climb density
- 3.4 m/km
- Descent
- 58 m
- Net elevation
- 13 m
- Max absolute grade
- 8.2%
- Fee
- Unavailable
As of
Sioux Falls Marathon Half Marathonsouth-dakota
- GAP factor
- 0.5%
- Ascent
- 149 m
- Climb density
- 7.1 m/km
- Descent
- 151 m
- Net elevation
- -2 m
- Max absolute grade
- 8.0%
- Fee
- Unavailable
As of
- GAP factor
- 0.5%
- Ascent
- 153 m
- Climb density
- 7.2 m/km
- Descent
- 153 m
- Net elevation
- -0 m
- Max absolute grade
- 6.5%
- Fee
- Unavailable
As of
City of Colleges Half Marathonarkansas
- GAP factor
- 0.5%
- Ascent
- 134 m
- Climb density
- 6.3 m/km
- Descent
- 135 m
- Net elevation
- -0 m
- Max absolute grade
- 9.2%
- Fee
- Unavailable
As of
- GAP factor
- 0.5%
- Ascent
- 159 m
- Climb density
- 7.6 m/km
- Descent
- 159 m
- Net elevation
- 0 m
- Max absolute grade
- 6.5%
- Fee
- Unavailable
As of
- GAP factor
- 0.5%
- Ascent
- 122 m
- Climb density
- 5.8 m/km
- Descent
- 117 m
- Net elevation
- 6 m
- Max absolute grade
- 7.1%
- Fee
- Unavailable
As of
Milton Keynes Marathon Half Marathonsouth-east
- GAP factor
- 0.5%
- Ascent
- 162 m
- Climb density
- 7.7 m/km
- Descent
- 165 m
- Net elevation
- -3 m
- Max absolute grade
- 8.1%
- Fee
- Unavailable
As of
Omaha Marathon Half Marathonnebraska
- GAP factor
- 0.5%
- Ascent
- 150 m
- Climb density
- 7.1 m/km
- Descent
- 151 m
- Net elevation
- -1 m
- Max absolute grade
- 11.5%
- Fee
- Unavailable
As of
- GAP factor
- 0.6%
- Ascent
- 164 m
- Climb density
- 7.8 m/km
- Descent
- 164 m
- Net elevation
- 0 m
- Max absolute grade
- 11.9%
- Fee
- Unavailable
As of
- GAP factor
- 0.6%
- Ascent
- 112 m
- Climb density
- 5.3 m/km
- Descent
- 106 m
- Net elevation
- 6 m
- Max absolute grade
- 8.7%
- Fee
- Unavailable
As of
- GAP factor
- 0.6%
- Ascent
- 133 m
- Climb density
- 6.3 m/km
- Descent
- 133 m
- Net elevation
- 0 m
- Max absolute grade
- 9.8%
- Fee
- Unavailable
As of
- GAP factor
- 0.6%
- Ascent
- 126 m
- Climb density
- 6.0 m/km
- Descent
- 127 m
- Net elevation
- -0 m
- Max absolute grade
- 14.6%
- Fee
- Unavailable
As of
- GAP factor
- 0.6%
- Ascent
- 135 m
- Climb density
- 6.4 m/km
- Descent
- 134 m
- Net elevation
- 1 m
- Max absolute grade
- 18.7%
- Fee
- Unavailable
As of
- GAP factor
- 0.6%
- Ascent
- 147 m
- Climb density
- 7.0 m/km
- Descent
- 147 m
- Net elevation
- 1 m
- Max absolute grade
- 8.0%
- Fee
- Unavailable
As of
Weymouth Half Marathonsouth-west
- GAP factor
- 0.6%
- Ascent
- 146 m
- Climb density
- 6.9 m/km
- Descent
- 146 m
- Net elevation
- -1 m
- Max absolute grade
- 9.2%
- Fee
- £41
As of
Charlotte Racefest at SouthPark Half Marathon and 10Knorth-carolina
- GAP factor
- 0.6%
- Ascent
- 70 m
- Climb density
- 3.3 m/km
- Descent
- 59 m
- Net elevation
- 11 m
- Max absolute grade
- 15.6%
- Fee
- Unavailable
As of
Phoenix 10k & Half Marathonarizona
- GAP factor
- 0.6%
- Ascent
- 169 m
- Climb density
- 8.0 m/km
- Descent
- 169 m
- Net elevation
- 0 m
- Max absolute grade
- 7.3%
- Fee
- Unavailable
As of
- GAP factor
- 0.6%
- Ascent
- 142 m
- Climb density
- 6.7 m/km
- Descent
- 142 m
- Net elevation
- 0 m
- Max absolute grade
- 14.9%
- Fee
- Unavailable
As of
- GAP factor
- 0.7%
- Ascent
- 148 m
- Climb density
- 7.0 m/km
- Descent
- 147 m
- Net elevation
- 2 m
- Max absolute grade
- 7.5%
- Fee
- Unavailable
As of
Showing the top 100 of 184 qualifying races; use the distance catalogue for the full searchable list. Scores are out of 100 when present; route, elevation and cost figures are shown in their natural units.
How we ranked these
Races are ranked by GAP factor. Score metrics use methodology scoring-methodology-v1.0. Elevation rankings use only trusted raw-elevation course profiles. A ranking is only published when at least five races qualify, so the table is never padded with thin data.
Route maps for this ranking
Common questions
What is the lowest gap factor half marathons?
Estes Park Marathon and Half Marathon ranks first by gap factor, from 184 qualifying races compared under our published methodology.