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

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Ryo Akamatsu

Men · Asia · b. 1983 (40-49) · provisional rating

Also seen as: Akamatsu, Ryo

Ratings

Athlete ratings by board
BoardGenderRatingRankMove
OverallMen499593• new
Multi-day / TimedMen4960• new

Why this rank

The Overall rating is the time-decayed mean of this athlete’s best 2 in-window performance scores (highlighted below). Each score = base × difficulty × field-strength × quality.

Career results (200+ mile tier)

(race) · · ?mi counts toward rating
place 2 · · difficulty ? · field ? · quality 0.74
60
(race) · · ?mi counts toward rating
place 2 · · difficulty ? · field ? · quality 0.81
66
(race) · · ?mi
place 1 · 1d 18:55:15 · difficulty ? · field ? · quality 1.00
242