- Flat grade share
- 100.0%
- Ascent
- 4 m
- Climb density
- 0.4 m/km
- Descent
- 4 m
- Net elevation
- -0 m
- Max absolute grade
- 0.7%
As of
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The flattest 10ks, ranked from trusted raw-elevation route profiles across 111 qualifying races.
Ranking current as ofNaturosa Catania Marathon leads this ranking on flat grade share (100.0%).
Compare Naturosa Catania Marathon vs Summer Breeze Half Marathon (San Leandro)
| # | Race | Flat grade share | Ascent | Climb density | Descent | Net elevation | Max absolute grade | As of |
|---|---|---|---|---|---|---|---|---|
| 1 | Naturosa Catania Marathon 10K - italy | 100.0% | 4 m | 0.4 m/km | 4 m | -0 m | 0.7% | |
| 2 | Summer Breeze Half Marathon (San Leandro) 10K - california | 100.0% | 0 m | 0.0 m/km | 0 m | -0 m | 1.7% | |
| 3 | Vale of York Half Marathon 10K - yorkshire | 100.0% | 8 m | 0.8 m/km | 8 m | -0 m | 1.0% | |
| 4 | ATW Bedford 10k & Half Marathon - east-of-england | 99.6% | 8 m | 0.8 m/km | 7 m | 0 m | 2.7% | |
| 5 | Zürich Marathon 10K - switzerland | 99.4% | 15 m | 1.5 m/km | 17 m | -2 m | 2.2% | |
| 6 | Bath & Bristol Railway Races 10K - south-west | 99.3% | 7 m | 0.7 m/km | 6 m | 1 m | 2.6% | |
| 7 | The Woodlands Marathon 10K - texas | 96.4% | 20 m | 2.0 m/km | 23 m | -3 m | 3.7% | |
| 8 | SwissCityMarathon – Lucerne 10K - switzerland | 96.3% | 27 m | 2.7 m/km | 31 m | -4 m | 4.1% | |
| 9 | City of Colleges Half Marathon 10K - arkansas | 95.4% | 32 m | 3.2 m/km | 33 m | -0 m | 2.8% | |
| 10 | Toulouse Métropole Run Experience 10K - france | 93.5% | 40 m | 4.0 m/km | 50 m | -10 m | 12.6% | |
| 11 | Tirol läuft (Innsbruck) 10K - austria | 93.4% | 33 m | 3.3 m/km | 35 m | -2 m | 5.6% | |
| 12 | Nagyerdei Terep Maraton (Debrecen) 10K - hungary | 93.2% | 29 m | 2.8 m/km | 31 m | -3 m | 3.8% | |
| 13 | Martian Invasion of Races 10K - michigan | 93.0% | 31 m | 3.1 m/km | 31 m | 0 m | 5.3% | |
| 14 | TBK Bank Quad Cities Marathon 10K - iowa | 92.7% | 29 m | 2.9 m/km | 28 m | 1 m | 6.4% | |
| 15 | Bear Trail Half Marathon & 10K - delaware | 92.2% | 36 m | 3.6 m/km | 37 m | -0 m | 4.9% | |
| 16 | Wilmslow Half Marathon 10K - north-west | 91.1% | 40 m | 4.0 m/km | 43 m | -3 m | 3.4% | |
| 17 | Greifenseelauf Uster 10K - switzerland | 91.1% | 52 m | 5.2 m/km | 34 m | 18 m | 9.6% | |
| 18 | Indiana Women's Running Festival (Indy Women's Half Marathon), Carmel 10K - indiana | 90.9% | 36 m | 3.6 m/km | 36 m | -0 m | 5.5% | |
| 19 | Cleveland Marathon 10K - ohio | 90.1% | 46 m | 4.6 m/km | 46 m | 0 m | 8.1% | |
| 20 | Mein Freiburg Marathon 10K - germany | 90.0% | 54 m | 5.4 m/km | 52 m | 2 m | 6.4% | |
| 21 | The Doncaster City 10K - yorkshire | 89.9% | 42 m | 4.2 m/km | 41 m | 0 m | 5.0% | |
| 22 | Garmin New Forest Marathon 10K - south-east | 89.0% | 40 m | 4.0 m/km | 41 m | -2 m | 6.3% | |
| 23 | Ukrop's Monument Avenue 10K (Richmond) - virginia | 87.9% | 49 m | 4.9 m/km | 43 m | 6 m | 5.9% | |
| 24 | Montana Marathon (Billings) 10K - montana | 87.8% | 13 m | 1.3 m/km | 64 m | -51 m | 4.0% | |
| 25 | Paavo Nurmi Marathon 10K - finland | 87.1% | 42 m | 4.2 m/km | 42 m | -1 m | 5.7% | |
| 26 | Debrecen Maraton 10K - hungary | 86.7% | 46 m | 4.4 m/km | 46 m | 0 m | 5.5% | |
| 27 | Garmin Olathe Marathon in the Land of Oz 10K - kansas | 86.5% | 55 m | 5.5 m/km | 55 m | 0 m | 5.0% | |
| 28 | Madison Marathon (Madison, Wisconsin) 10K - wisconsin | 86.0% | 43 m | 4.3 m/km | 38 m | 4 m | 6.2% | |
| 29 | Parkway Subaru Battleship Half Marathon & GFL 10K|5K (Wilmington) - north-carolina | 85.2% | 52 m | 5.2 m/km | 52 m | 0 m | 7.6% | |
| 30 | Reims Champagne Run 10K - france | 84.5% | 47 m | 4.7 m/km | 49 m | -2 m | 4.5% | |
| 31 | The Original Las Vegas Marathon 10K - nevada | 84.5% | 55 m | 5.5 m/km | 56 m | -0 m | 3.3% | |
| 32 | Naisten Kymppi (Helsinki) 10K - finland | 84.1% | 48 m | 4.8 m/km | 47 m | 1 m | 6.4% | |
| 33 | NN Night Run Ostrava 10K - czechia | 83.7% | 51 m | 5.1 m/km | 54 m | -3 m | 4.9% | |
| 34 | Trondheim Maraton 10K - norway | 83.4% | 51 m | 5.1 m/km | 51 m | 1 m | 9.0% | |
| 35 | Helvetia Half Marathon 10K - oregon | 83.1% | 51 m | 5.1 m/km | 49 m | 2 m | 5.4% | |
| 36 | Marathon Vert Rennes 10K - france | 80.6% | 56 m | 5.6 m/km | 55 m | 1 m | 7.2% | |
| 37 | Cajun Country Run 10K - louisiana | 80.0% | 61 m | 6.1 m/km | 61 m | -0 m | 10.7% | |
| 38 | Naptown Half Marathon & 10K/5K - maryland | 79.8% | 63 m | 6.3 m/km | 63 m | -0 m | 9.3% | |
| 39 | Chester Marathon 10K - north-west | 79.5% | 60 m | 6.0 m/km | 50 m | 11 m | 6.2% | |
| 40 | Bozeman Half Marathon & 10K - montana | 78.8% | 17 m | 1.7 m/km | 121 m | -104 m | 4.0% | |
| 41 | Run Leicester 10K - east-midlands | 77.5% | 63 m | 6.3 m/km | 63 m | -0 m | 5.6% | |
| 42 | Regeneron Great Limerick Run 10K - ireland | 77.4% | 55 m | 5.7 m/km | 58 m | -3 m | 5.4% | |
| 43 | Etape Bornholm 10K - denmark | 77.0% | 56 m | 5.6 m/km | 62 m | -6 m | 9.9% | |
| 44 | Southampton Marathon 10K - south-east | 76.8% | 70 m | 7.0 m/km | 56 m | 14 m | 13.8% | |
| 45 | Windermere Marathon (Spokane) 10K - washington | 76.3% | 62 m | 6.2 m/km | 62 m | 0 m | 5.0% | |
| 46 | Bend Marathon and Half 10K - oregon | 76.0% | 68 m | 6.8 m/km | 68 m | 0 m | 10.2% | |
| 47 | Lundaloppet 10K - sweden | 75.4% | 72 m | 7.2 m/km | 69 m | 3 m | 7.5% | |
| 48 | BTC Vulcan Run 10K (Birmingham) - alabama | 73.7% | 84 m | 8.4 m/km | 84 m | -0 m | 20.5% | |
| 49 | Lift Bridge Road Races 10K - minnesota | 73.6% | 84 m | 8.4 m/km | 55 m | 29 m | 12.9% | |
| 50 | Athens Marathon. The Authentic 10K - greece | 73.1% | 79 m | 7.9 m/km | 83 m | -4 m | 4.4% | |
| 51 | Montpellier Run Festival 10K - france | 71.6% | 94 m | 9.4 m/km | 82 m | 12 m | 9.9% | |
| 52 | Flying Pig Marathon 10K - ohio | 71.5% | 82 m | 8.2 m/km | 83 m | -1 m | 10.4% | |
| 53 | Fayetteville Half Marathon 10K - arkansas | 71.4% | 82 m | 8.2 m/km | 82 m | 0 m | 10.6% | |
| 54 | Rimi Riga Marathon 10K - latvia | 71.3% | 85 m | 8.5 m/km | 84 m | 1 m | 19.7% | |
| 55 | OhioHealth Capital City Half & Quarter Marathon (Columbus) 10K - ohio | 71.0% | 104 m | 9.8 m/km | 102 m | 1 m | 20.2% | |
| 56 | Courses de Strasbourg Eurométropole 10K - france | 70.7% | 89 m | 8.9 m/km | 83 m | 6 m | 12.9% | |
| 57 | St. Croix Crossing Half Marathon 10K - minnesota | 70.6% | 23 m | 2.3 m/km | 91 m | -68 m | 10.4% | |
| 58 | Bay of Fundy International Marathon 10K - maine | 69.9% | 64 m | 6.4 m/km | 91 m | -27 m | 9.1% | |
| 59 | Cedar Rapids Marathon 10K - iowa | 69.8% | 85 m | 8.5 m/km | 86 m | -0 m | 13.8% | |
| 60 | Clonakilty Waterfront Marathon 10K - ireland | 69.5% | 89 m | 8.9 m/km | 94 m | -4 m | 12.3% | |
| 61 | Thames Meander Marathon (London) 10K - london | 68.7% | 78 m | 7.8 m/km | 77 m | 0 m | 6.5% | |
| 62 | Ultra Trail Vipava Valley (UTVV), Ajdovščina 10K - slovenia | 67.5% | 110 m | 11.0 m/km | 110 m | 1 m | 14.5% | |
| 63 | Altru Family YMCA Firecracker 5K & 10K Fun Run/Walk - north-dakota | 67.5% | 79 m | 7.9 m/km | 79 m | -0 m | 8.8% | |
| 64 | Garstang 10K - north-west | 65.3% | 80 m | 8.0 m/km | 81 m | -1 m | 5.8% | |
| 65 | Run Madtown Half Marathon, 10K & 5K - wisconsin | 64.7% | 101 m | 10.1 m/km | 100 m | 1 m | 10.8% | |
| 66 | OTC Butte to Butte (Eugene) 10K - oregon | 64.6% | 99 m | 9.9 m/km | 133 m | -34 m | 11.8% | |
| 67 | Zurich Rock 'n' Roll Running Series Madrid 10K - spain | 64.3% | 66 m | 6.6 m/km | 93 m | -26 m | 7.7% | |
| 68 | Phoenix 10k & Half Marathon - arizona | 63.2% | 93 m | 9.3 m/km | 93 m | 0 m | 7.3% | |
| 69 | Endurancelife Suffolk (Dunwich) 10K - east-of-england | 62.6% | 88 m | 9.0 m/km | 89 m | -1 m | 9.1% | |
| 70 | Generali Genève Marathon 10K - switzerland | 59.4% | 81 m | 8.1 m/km | 129 m | -48 m | 11.6% | |
| 71 | Gravel Worlds Run Series (Lincoln) 10K - nebraska | 59.0% | 90 m | 9.0 m/km | 90 m | 0 m | 6.7% | |
| 72 | LIDL São Silvestre de Lisboa 10K - portugal | 58.2% | 119 m | 11.9 m/km | 119 m | 0 m | 13.6% | |
| 73 | St Albans Half Marathon 10K - east-of-england | 56.8% | 97 m | 9.7 m/km | 97 m | 0 m | 6.9% | |
| 74 | La Jolla Half Marathon, 10K & 5K - california | 56.0% | 76 m | 7.6 m/km | 197 m | -121 m | 12.4% | |
| 75 | Statesman Cap10K (Austin) 10K - texas | 55.3% | 152 m | 15.2 m/km | 159 m | -7 m | 22.6% | |
| 76 | Haulin' Aspen Trail Race 10K - oregon | 54.7% | 130 m | 12.4 m/km | 155 m | -25 m | 10.9% | |
| 77 | The Skippo Trail Race 10K - missouri | 54.1% | 155 m | 15.5 m/km | 155 m | 0 m | 19.9% | |
| 78 | Middlebury Maple Run 10K - vermont | 54.0% | 116 m | 11.6 m/km | 116 m | -0 m | 11.3% | |
| 79 | RAD Half Marathon & 10K (Asheville) - north-carolina | 50.8% | 92 m | 9.2 m/km | 163 m | -72 m | 10.3% | |
| 80 | Run the Rainbow for Children's 10K - mississippi | 50.2% | 117 m | 11.7 m/km | 117 m | 0 m | 8.3% | |
| 81 | DNB Oslo Marathon 10K - norway | 49.8% | 128 m | 12.8 m/km | 130 m | -2 m | 13.3% | |
| 82 | Acadia Half Marathon & 10K - maine | 49.0% | 135 m | 13.5 m/km | 139 m | -4 m | 16.0% | |
| 83 | SPAR Budapest Marathon 10K - hungary | 48.5% | 152 m | 15.2 m/km | 152 m | -0 m | 18.7% | |
| 84 | Greene & Schultz Hoosier Half Marathon, 5 & 10K - indiana | 47.6% | 134 m | 13.4 m/km | 134 m | 0 m | 16.3% | |
| 85 | TARC Stone Cat Trail Festival 10K - massachusetts | 46.7% | 155 m | 15.5 m/km | 155 m | 0 m | 17.5% | |
| 86 | Spring Dash (Coeur d'Alene) 10K - idaho | 46.6% | 148 m | 14.8 m/km | 147 m | 1 m | 14.6% | |
| 87 | Juneteenth Half Marathon & 10K (Washington DC) - dc | 46.0% | 134 m | 13.4 m/km | 198 m | -64 m | 15.7% | |
| 88 | Norfolk Festival of Running (King's Lynn) 10K - east-of-england | 45.5% | 139 m | 13.9 m/km | 139 m | -1 m | 9.8% | |
| 89 | Konza 25K & 10K (Manhattan) - kansas | 45.4% | 148 m | 14.8 m/km | 145 m | 4 m | 15.5% | |
| 90 | Isle of Skye Half Marathon 10K - scotland | 42.9% | 112 m | 11.2 m/km | 144 m | -31 m | 9.9% | |
| 91 | Double Decker Spring Run (Oxford, MS) 10K - mississippi | 42.8% | 138 m | 13.8 m/km | 138 m | -0 m | 11.1% | |
| 92 | Spokane River Run 10K - washington | 42.4% | 152 m | 15.2 m/km | 152 m | 0 m | 17.2% | |
| 93 | Portland Coastal Marathon 10K - south-west | 39.6% | 207 m | 20.7 m/km | 208 m | -0 m | 22.0% | |
| 94 | Two Tunnels Railway Races 10K - south-west | 39.0% | 244 m | 24.4 m/km | 241 m | 2 m | 18.1% | |
| 95 | TCS Lidingöloppet 10K - sweden | 36.0% | 162 m | 16.2 m/km | 159 m | 3 m | 12.4% | |
| 96 | Lakeland Trails Coniston Marathon, Half, Mini-10k & 5k - north-west | 33.1% | 318 m | 31.8 m/km | 317 m | 0 m | 24.6% | |
| 97 | The Maverick Peak District Trail (Bakewell) 10K - east-midlands | 32.1% | 256 m | 25.6 m/km | 256 m | 0 m | 26.0% | |
| 98 | Trondheim Skogsmaraton 10K - norway | 32.0% | 232 m | 22.1 m/km | 232 m | -0 m | 19.4% | |
| 99 | Tollymore Extreme (Tollymore Trail Marathon), Newcastle 10K - northern-ireland | 31.8% | 189 m | 18.9 m/km | 187 m | 2 m | 16.1% | |
| 100 | 6 sjöar (Uppsala) 10K - sweden | 30.8% | 222 m | 21.5 m/km | 231 m | -9 m | 26.1% |
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Showing the top 100 of 111 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.
Races are ranked by Flat grade share. 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.
Naturosa Catania Marathon 10K ranks first by flat grade share, from 111 qualifying races compared under our published methodology.