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

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Jim Ryan

Men · Americas · provisional rating

Ratings

Athlete ratings by board
BoardGenderRatingRankMove
ContinuousMen6631024• new
OverallMen6631021• 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)

Arizona Monster 300 · Mar 27, 2026 · 304mi continuouscounts toward rating
DNF · 304mi covered · difficulty 2.20 · field 2.45 · quality 1.00
1,890
Cocodona 250 Mile Race · May 1, 2023 · 250mi continuous
place 61 · 4d 10:41:47 · difficulty 2.45 · field 2.44 · quality 0.46
2,780
Moab 240 Endurance Run · Oct 8, 2021 · 240mi continuous
place 37 · 3d 13:18:42 · difficulty 1.95 · field 1.69 · quality 0.47
1,540