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

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David Byrnes

Men · Americas · b. 1982 (40-49) · provisional rating

Also seen as: Byrnes, David

Ratings

Athlete ratings by board
BoardGenderRatingRankMove
ContinuousMen697066• new
OverallMen697055• 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 3, 2021 · 250mi continuous
place 32 · 4d 08:29:35 · difficulty 2.45 · field 2.19 · quality 0.52
2,807
(race) · · ?mi counts toward rating
place 37 · 1d 14:23:46 · difficulty ? · field ? · quality 0.41
181