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About RaceIndexOur methodologyData coverageCyclingTriathlon

Lowest GAP factor others

The lowest gap factor others, ranked from trusted raw-elevation route profiles across 38 qualifying races.

Ranking current as of

Which race ranks first — and why is it Crazylegs Classic 8K (Madison)?

Crazylegs Classic 8K (Madison) leads this ranking on gap factor (-0.4%).

Compare Crazylegs Classic 8K (Madison) vs Bill Powers Memorial Firecracker 4-Miler (Brattleboro)

#RaceGAP factorAscentClimb densityDescentNet elevationMax absolute gradeFeeAs of
1Crazylegs Classic 8K (Madison) 2 Mile - wisconsin-0.4%15 m4.8 m/km19 m-4 m3.1%Unavailable
2Bill Powers Memorial Firecracker 4-Miler (Brattleboro) 4 Mile - vermont-0.2%91 m14.2 m/km130 m-39 m19.2%Unavailable
3Martian Invasion of Races 26K - michigan0.1%65 m2.5 m/km65 m0 m5.4%Unavailable
4Regensburg Marathon 32K - germany0.1%92 m2.9 m/km91 m0 m6.4%Unavailable
5Red, White and Blue Half Marathon - Shreveport 4 Mile - louisiana0.2%32 m5.0 m/km32 m0 m4.2%Unavailable
6Tupelo Marathon 23K - mississippi0.4%135 m5.9 m/km134 m1 m7.1%Unavailable
7Termal Bologna Marathon 30K - italy0.5%142 m4.7 m/km126 m16 m7.2%Unavailable
8Büchl Éjszakai Félmaraton (Győr) 14K - hungary0.5%96 m6.8 m/km95 m1 m7.2%Unavailable
9The Pistol Ultra (Alcoa) 32K - tennessee0.5%173 m5.4 m/km173 m-0 m11.7%Unavailable
10Courses de Strasbourg Eurométropole 31K - france0.7%232 m7.5 m/km225 m7 m12.8%Unavailable
11SPARKASSE 3-Länder-Marathon (Bregenz) 11K - austria0.8%88 m8.1 m/km84 m3 m11.9%Unavailable
12Annapolis Striders Metric Marathon (Harwood) 26K - maryland0.8%245 m9.4 m/km245 m-0 m10.3%Unavailable
13Lundaloppet 2.5 km - sweden0.9%16 m6.4 m/km13 m3 m5.6%Unavailable
14TCS Lidingöloppet 30K - sweden1.4%372 m12.4 m/km377 m-5 m13.2%Unavailable
15Course de l'Escalade (Genève) 7.3 km - switzerland1.4%91 m12.4 m/km96 m-4 m10.9%Unavailable
16Bewl 15 (Wadhurst) 24K - south-east1.6%273 m11.3 m/km273 m-0 m20.1%£40
17Plitvički maraton (Plitvice Marathon) 9K - croatia2.1%157 m17.4 m/km154 m2 m6.7%Unavailable
18Otter Creek Trail Run (Mandan) 6K - north-dakota2.2%91 m15.7 m/km92 m-1 m12.3%Unavailable
196 sjöar (Uppsala) 5.5 km - sweden2.2%65 m11.8 m/km63 m3 m18.8%Unavailable
20Behind the Rocks Ultra 30K - utah2.2%457 m15.2 m/km457 m0 m21.5%Unavailable
21Spokane River Run 25K - washington2.3%326 m13.1 m/km326 m0 m21.0%Unavailable
22The Skippo Trail Race 30K - missouri3.1%454 m15.1 m/km453 m0 m25.2%Unavailable
23Telekom Vivicittá (Budapest) 7K - hungary3.3%136 m19.4 m/km136 m0 m17.3%Unavailable
24The Maverick Peak District Trail (Bakewell) 28K - east-midlands4.3%589 m21.0 m/km589 m0 m24.9%£25
25Round Sheffield Run 25K - yorkshire4.9%574 m23.4 m/km575 m-1 m35.2%£39
26NUTS Karhunkierros 36K - finland5.1%697 m19.6 m/km570 m127 m21.4%Unavailable
27Endurancelife Coastal Trail Series - North York Moors (Ravenscar) 24K - yorkshire5.8%598 m24.8 m/km598 m-0 m27.1%£47
28Volvic Volcanic Experience (VVX) 24K - france6.7%644 m26.8 m/km644 m0 m44.8%Unavailable
29Kia Fjällmaraton (Fjällmaratonveckan), Årefjällen 27K - sweden7.2%869 m32.2 m/km996 m-127 m30.6%Unavailable
30Etape Bornholm 8.6 km - denmark8.6%222 m25.8 m/km154 m68 m19.7%Unavailable
31Ethias 15 km de Liège Métropole 24K - belgium8.9%759 m31.6 m/km806 m-47 m39.7%Unavailable
32Escape from Prison Hill (Carson City) 11K - nevada10.9%407 m37.0 m/km403 m4 m30.3%Unavailable
33Carson Canyons Super-K Trail Runs 6K - nevada11.3%256 m42.7 m/km253 m3 m25.7%Unavailable
34Slovenski gozdarski trail 34K - slovenia13.4%1,336 m39.3 m/km1,335 m1 m40.6%Unavailable
35Ultra Trail Učka 13K - croatia22.6%609 m46.8 m/km608 m-0 m40.6%Unavailable
36Zagori Mountain Running (ZMR) 33K - greece25.9%1,955 m59.3 m/km1,959 m-3 m43.5%Unavailable
37Marathon du Mont-Blanc, Chamonix 23K - france40.3%1,641 m71.3 m/km634 m1,007 m35.0%Unavailable
38Chudy Wawrzyniec (Rajcza) 3K - poland96.0%387 m133.4 m/km19 m368 m43.4%Unavailable
3
Martian Invasion of Races 26Kmichigan
GAP factor
0.1%
Ascent
65 m
Climb density
2.5 m/km
Descent
65 m
Net elevation
0 m
Max absolute grade
5.4%
Fee
Unavailable

As of

4
Regensburg Marathon 32Kgermany
GAP factor
0.1%
Ascent
92 m
Climb density
2.9 m/km
Descent
91 m
Net elevation
0 m
Max absolute grade
6.4%
Fee
Unavailable

As of

6
Tupelo Marathon 23Kmississippi
GAP factor
0.4%
Ascent
135 m
Climb density
5.9 m/km
Descent
134 m
Net elevation
1 m
Max absolute grade
7.1%
Fee
Unavailable

As of

7
Termal Bologna Marathon 30Kitaly
GAP factor
0.5%
Ascent
142 m
Climb density
4.7 m/km
Descent
126 m
Net elevation
16 m
Max absolute grade
7.2%
Fee
Unavailable

As of

9
The Pistol Ultra (Alcoa) 32Ktennessee
GAP factor
0.5%
Ascent
173 m
Climb density
5.4 m/km
Descent
173 m
Net elevation
-0 m
Max absolute grade
11.7%
Fee
Unavailable

As of

13
Lundaloppet 2.5 kmsweden
GAP factor
0.9%
Ascent
16 m
Climb density
6.4 m/km
Descent
13 m
Net elevation
3 m
Max absolute grade
5.6%
Fee
Unavailable

As of

14
TCS Lidingöloppet 30Ksweden
GAP factor
1.4%
Ascent
372 m
Climb density
12.4 m/km
Descent
377 m
Net elevation
-5 m
Max absolute grade
13.2%
Fee
Unavailable

As of

16
Bewl 15 (Wadhurst) 24Ksouth-east
GAP factor
1.6%
Ascent
273 m
Climb density
11.3 m/km
Descent
273 m
Net elevation
-0 m
Max absolute grade
20.1%
Fee
£40

As of

18
Otter Creek Trail Run (Mandan) 6Knorth-dakota
GAP factor
2.2%
Ascent
91 m
Climb density
15.7 m/km
Descent
92 m
Net elevation
-1 m
Max absolute grade
12.3%
Fee
Unavailable

As of

19
6 sjöar (Uppsala) 5.5 kmsweden
GAP factor
2.2%
Ascent
65 m
Climb density
11.8 m/km
Descent
63 m
Net elevation
3 m
Max absolute grade
18.8%
Fee
Unavailable

As of

20
Behind the Rocks Ultra 30Kutah
GAP factor
2.2%
Ascent
457 m
Climb density
15.2 m/km
Descent
457 m
Net elevation
0 m
Max absolute grade
21.5%
Fee
Unavailable

As of

21
Spokane River Run 25Kwashington
GAP factor
2.3%
Ascent
326 m
Climb density
13.1 m/km
Descent
326 m
Net elevation
0 m
Max absolute grade
21.0%
Fee
Unavailable

As of

22
The Skippo Trail Race 30Kmissouri
GAP factor
3.1%
Ascent
454 m
Climb density
15.1 m/km
Descent
453 m
Net elevation
0 m
Max absolute grade
25.2%
Fee
Unavailable

As of

23
Telekom Vivicittá (Budapest) 7Khungary
GAP factor
3.3%
Ascent
136 m
Climb density
19.4 m/km
Descent
136 m
Net elevation
0 m
Max absolute grade
17.3%
Fee
Unavailable

As of

25
Round Sheffield Run 25Kyorkshire
GAP factor
4.9%
Ascent
574 m
Climb density
23.4 m/km
Descent
575 m
Net elevation
-1 m
Max absolute grade
35.2%
Fee
£39

As of

26
NUTS Karhunkierros 36Kfinland
GAP factor
5.1%
Ascent
697 m
Climb density
19.6 m/km
Descent
570 m
Net elevation
127 m
Max absolute grade
21.4%
Fee
Unavailable

As of

30
Etape Bornholm 8.6 kmdenmark
GAP factor
8.6%
Ascent
222 m
Climb density
25.8 m/km
Descent
154 m
Net elevation
68 m
Max absolute grade
19.7%
Fee
Unavailable

As of

34
Slovenski gozdarski trail 34Kslovenia
GAP factor
13.4%
Ascent
1,336 m
Climb density
39.3 m/km
Descent
1,335 m
Net elevation
1 m
Max absolute grade
40.6%
Fee
Unavailable

As of

35
Ultra Trail Učka 13Kcroatia
GAP factor
22.6%
Ascent
609 m
Climb density
46.8 m/km
Descent
608 m
Net elevation
-0 m
Max absolute grade
40.6%
Fee
Unavailable

As of

36
Zagori Mountain Running (ZMR) 33Kgreece
GAP factor
25.9%
Ascent
1,955 m
Climb density
59.3 m/km
Descent
1,959 m
Net elevation
-3 m
Max absolute grade
43.5%
Fee
Unavailable

As of

38
Chudy Wawrzyniec (Rajcza) 3Kpoland
GAP factor
96.0%
Ascent
387 m
Climb density
133.4 m/km
Descent
19 m
Net elevation
368 m
Max absolute grade
43.4%
Fee
Unavailable

As of

38 qualifying races in this ranking; use the distance catalogue to search the full distance 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.

See exactly how each figure is calculated →

Route maps for this ranking

How we calculated this

Published facts and derived model outputs on this page are tied to stored sources or a published, version-locked methodology. We show the provenance so runners, coaches and organisers can check it. Data on this page is current as of .

Derived numbers use scoring-methodology-v1.0.

Sources used on this page (40)

Read the full methodology →

Common questions

What is the lowest gap factor others?

Crazylegs Classic 8K (Madison) 2 Mile ranks first by gap factor, from 38 qualifying races compared under our published methodology.