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

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David McClaren

Men · Americas · provisional rating

Ratings

Athlete ratings by board
BoardGenderRatingRankMove
ContinuousMen6471051• new
OverallMen6471050• new

Why this rank

The Overall rating is the time-decayed mean of this athlete’s best 2 in-window performance scores (highlighted below). Each score = base × difficulty × field-strength × quality.

Career results (200+ mile tier)

The Mammoth 200 · Sep 26, 2025 · 208mi continuouscounts toward rating
place 37 · 3d 08:11:24 · difficulty 1.01 · field 2.07 · quality 0.36
750
Cocodona 250 Mile Race · May 6, 2024 · 250mi continuouscounts toward rating
place 81 · 4d 05:08:05 · difficulty 2.45 · field 2.43 · quality 0.39
2,320
Bigfoot 200 Endurance Run · Aug 13, 2021 · 200mi continuous
place 49 · 4d 00:13:56 · difficulty 2.65 · field 1.87 · quality 0.40
1,992