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

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William Cooper

Men · Americas · b. 1958 (60-69) · provisional rating

Also seen as: Cooper, William

Ratings

Athlete ratings by board
BoardGenderRatingRankMove
ContinuousMen766366• new
OverallMen766358• 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)

Last Annual Vol-State 500K Endurance Run · Jul 10, 2025 · 310.69mi continuouscounts toward rating
place 88 · 9d 17:45:26 · difficulty 1.10 · field 0.42 · quality 0.23
109
The Last Annual Heart of the South Road Race · Jun 13, 2024 · 351mi continuouscounts toward rating
place 16 · 10d 04:44:44 · difficulty 1.05 · field 0.41 · quality 0.42
181
The Last Annual Third Circle of Hell · Aug 3, 2023 · 370mi continuouscounts toward rating
place 21 · 9d 19:55:25 · difficulty 1.18 · field 0.40 · quality 0.40
192
Last Annual Vol-State 500K Endurance Run · Jul 13, 2023 · 310.69mi continuous
place 76 · 9d 01:53:10 · difficulty 1.10 · field 0.40 · quality 0.20
89
The Last Annual Heart of the South Road Race · Jun 15, 2023 · 351mi continuous
place 58 · 9d 22:49:59 · difficulty 1.05 · field 0.40 · quality 0.22
95
Last Annual Vol-State 500K Endurance Run · Jul 14, 2022 · 310.69mi continuous
place 71 · 8d 22:41:54 · difficulty 1.10 · field 0.63 · quality 0.22
151
The Last Annual Heart of the South Road Race · Jun 16, 2022 · 326mi continuous
place 48 · 9d 11:35:59 · difficulty 1.05 · field 0.41 · quality 0.34
146
The Last Annual Heart of the South Road Race · Jun 17, 2021 · 326mi continuous
place 35 · 9d 06:47:08 · difficulty 1.05 · field 0.40 · quality 0.34
146