Johnson Power Rankings
The world authority on 200+ mile ultramarathon running — weekly, data-driven, course-difficulty-adjusted.

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Collin Fallon

Men · Americas

Ratings

Athlete ratings by board
BoardGenderRatingRankMove
ContinuousMen2,37243• new
OverallMen2,37243• new

Why this rank

The Overall rating is the time-decayed mean of this athlete’s best 3 in-window performance scores (highlighted below). Each score = base × difficulty × field-strength × quality.

Career results (200+ mile tier)

Cocodona 250 Mile Race · May 4, 2026 · 250mi continuouscounts toward rating
place 43 · 3d 14:42:38 · difficulty 2.45 · field 2.30 · quality 0.46
2,579
The Mammoth 200 · Sep 26, 2025 · 208mi continuous
place 40 · 3d 10:13:04 · difficulty 1.01 · field 2.07 · quality 0.34
717
Arizona Monster 300 · Apr 4, 2025 · 304mi continuouscounts toward rating
place 19 · 4d 13:09:35 · difficulty 2.20 · field 2.26 · quality 0.66
3,279
Cocodona 250 Mile Race · May 6, 2024 · 250mi continuouscounts toward rating
place 42 · 3d 17:23:25 · difficulty 2.45 · field 2.43 · quality 0.49
2,897
Moab 240 Endurance Run · Oct 13, 2023 · 240mi continuous
place 61 · 4d 06:34:20 · difficulty 1.95 · field 1.74 · quality 0.51
1,744
Bigfoot 200 Endurance Run · Aug 11, 2023 · 200mi continuous
place 32 · 3d 07:46:50 · difficulty 2.65 · field 1.81 · quality 0.50
2,410
Tahoe 200 Mile Endurance Run · Jul 21, 2023 · 200mi continuous
place 26 · 3d 11:23:47 · difficulty 2.35 · field 1.59 · quality 0.59
2,217
Cocodona 250 Mile Race · May 2, 2022 · 250mi continuous
DNF · 250mi covered · difficulty 2.45 · field 2.18 · quality 1.00
1,865
Cocodona 250 Mile Race · May 3, 2021 · 250mi continuous
place 37 · 4d 09:31:49 · difficulty 2.45 · field 2.19 · quality 0.51
2,758