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

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James Boler

Men · Americas · provisional rating

Ratings

Athlete ratings by board
BoardGenderRatingRankMove
ContinuousMen539267• new
OverallMen539266• 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)

Cowboy 200 · Sep 15, 2023 · 200mi continuouscounts toward rating
place 13 · 2d 22:15:33 · difficulty 0.95 · field 0.71 · quality 0.50
340
Cowboy 200 · Nov 5, 2022 · 200mi continuous
DNF · 200mi covered · difficulty 0.95 · field 1.04 · quality 1.00
346