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About RaceIndexOur methodologyData coverageCyclingTriathlon

Best race-day conditions 12ks

The best race-day conditions 12ks, ranked from typical race-day temperature, wind and rain evidence across 17 qualifying races.

Ranking current as of

Which race ranks first — and why is it Don't Fence Me In Trail Run?

Don't Fence Me In Trail Run leads this ranking on conditions score (94/100).

Compare Don't Fence Me In Trail Run vs Garda Trentino Trail

#RaceConditions scoreAscentClimb densityDescentNet elevationMax absolute gradeAs of
1Don't Fence Me In Trail Run 12K - montana94UnavailableUnavailableUnavailableUnavailableUnavailable
2Garda Trentino Trail 12K - italy91806 m67.2 m/km806 m-0 m72.7%
3The Arctic Triple // Lofoten Ultra-Trail 12K - norway87464 m38.7 m/km465 m-0 m91.3%
4Endurancelife Pembrokeshire 12K - wales84353 m29.2 m/km343 m10 m28.9%
5Delaware Trail Fest 12K - delaware80UnavailableUnavailableUnavailableUnavailableUnavailable
6Jotunheimen Trail Run 12K - norway79UnavailableUnavailableUnavailableUnavailableUnavailable
7St. Louis Track Club Frostbite Series 12K - missouri78UnavailableUnavailableUnavailableUnavailableUnavailable
8Carson Canyons Super-K Trail Runs 12K - nevada75473 m39.4 m/km464 m9 m26.6%
9The Dipsea Race 12K - california74UnavailableUnavailableUnavailableUnavailableUnavailable
10Bay to Breakers 12K - california69UnavailableUnavailableUnavailableUnavailableUnavailable
11Dolomiti Extreme Trail 12K - italy69571 m47.6 m/km573 m-2 m48.6%
12Triglav Trail Run 12K - slovenia68UnavailableUnavailableUnavailableUnavailableUnavailable
13Ultra Trail Serra da Freita (Arouca) 12K - portugal63UnavailableUnavailableUnavailableUnavailableUnavailable
14BRITA Urban Trail Brussels 12K - belgium62UnavailableUnavailableUnavailableUnavailableUnavailable
15Delta Dental Mount Washington Road Race 12K - new-hampshire54UnavailableUnavailableUnavailableUnavailableUnavailable
16The Iron Horse Half Marathon & 12k - kentucky48UnavailableUnavailableUnavailableUnavailableUnavailable
17Soča Outdoor Festival 12K - slovenia44310 m26.5 m/km318 m-9 m38.0%
1
Don't Fence Me In Trail Run 12Kmontana
Conditions score
94
Ascent
Unavailable
Climb density
Unavailable
Descent
Unavailable
Net elevation
Unavailable
Max absolute grade
Unavailable

As of

2
Garda Trentino Trail 12Kitaly
Conditions score
91
Ascent
806 m
Climb density
67.2 m/km
Descent
806 m
Net elevation
-0 m
Max absolute grade
72.7%

As of

4
Endurancelife Pembrokeshire 12Kwales
Conditions score
84
Ascent
353 m
Climb density
29.2 m/km
Descent
343 m
Net elevation
10 m
Max absolute grade
28.9%

As of

5
Delaware Trail Fest 12Kdelaware
Conditions score
80
Ascent
Unavailable
Climb density
Unavailable
Descent
Unavailable
Net elevation
Unavailable
Max absolute grade
Unavailable

As of

6
Jotunheimen Trail Run 12Knorway
Conditions score
79
Ascent
Unavailable
Climb density
Unavailable
Descent
Unavailable
Net elevation
Unavailable
Max absolute grade
Unavailable

As of

9
The Dipsea Race 12Kcalifornia
Conditions score
74
Ascent
Unavailable
Climb density
Unavailable
Descent
Unavailable
Net elevation
Unavailable
Max absolute grade
Unavailable

As of

10
Bay to Breakers 12Kcalifornia
Conditions score
69
Ascent
Unavailable
Climb density
Unavailable
Descent
Unavailable
Net elevation
Unavailable
Max absolute grade
Unavailable

As of

11
Dolomiti Extreme Trail 12Kitaly
Conditions score
69
Ascent
571 m
Climb density
47.6 m/km
Descent
573 m
Net elevation
-2 m
Max absolute grade
48.6%

As of

12
Triglav Trail Run 12Kslovenia
Conditions score
68
Ascent
Unavailable
Climb density
Unavailable
Descent
Unavailable
Net elevation
Unavailable
Max absolute grade
Unavailable

As of

14
BRITA Urban Trail Brussels 12Kbelgium
Conditions score
62
Ascent
Unavailable
Climb density
Unavailable
Descent
Unavailable
Net elevation
Unavailable
Max absolute grade
Unavailable

As of

16
The Iron Horse Half Marathon & 12kkentucky
Conditions score
48
Ascent
Unavailable
Climb density
Unavailable
Descent
Unavailable
Net elevation
Unavailable
Max absolute grade
Unavailable

As of

17
Soča Outdoor Festival 12Kslovenia
Conditions score
44
Ascent
310 m
Climb density
26.5 m/km
Descent
318 m
Net elevation
-9 m
Max absolute grade
38.0%

As of

17 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 Conditions score. Score metrics use methodology scoring-methodology-v1.0. Route, elevation and fee metrics use the sourced or derived value shown in the table. 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 →

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 (18)

Read the full methodology →

Common questions

What is the best race-day conditions 12ks?

Don't Fence Me In Trail Run 12K ranks first by conditions score, from 17 qualifying races compared under our published methodology.