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

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Tim Donnelly

Men · Americas · provisional rating

Ratings

Athlete ratings by board
BoardGenderRatingRankMove
ContinuousMen691934• new
OverallMen691933• new

Why this rank

The Overall rating is the time-decayed mean of this athlete’s best 1 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
DNF · 250mi covered · difficulty 2.45 · field 2.30 · quality 1.00
1,973
Moab 240 Endurance Run · Oct 7, 2022 · 240mi continuous
place 119 · 4d 09:34:12 · difficulty 1.95 · field 1.86 · quality 0.33
1,215
Bigfoot 200 Endurance Run · Aug 12, 2022 · 200mi continuous
place 111 · 4d 07:26:39 · difficulty 2.65 · field 2.08 · quality 0.34
1,874
Tahoe 200 Mile Endurance Run · Jun 17, 2022 · 200mi continuous
place 73 · 3d 17:56:18 · difficulty 2.35 · field 2.02 · quality 0.44
2,074
Bigfoot 200 Endurance Run · Aug 13, 2021 · 200mi continuous
place 89 · 4d 08:07:51 · difficulty 2.65 · field 1.87 · quality 0.35
1,728