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

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Peter Wai

Men · Americas · b. 1970 (50-59) · provisional rating

Also seen as: Wai, Peter

Ratings

Athlete ratings by board
BoardGenderRatingRankMove
ContinuousMen1194271• new
OverallMen1194267• 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)

Swammie Shuffle 200 · Feb 22, 2026 · 200mi continuouscounts toward rating
place 10 · 5d 04:39:00 · difficulty 1.00 · field 1.02 · quality 0.25
249
Swammie Shuffle 200 · Feb 25, 2024 · 200mi continuouscounts toward rating
place 13 · 4d 08:06:00 · difficulty 1.00 · field 0.42 · quality 0.35
147