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

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Adam Juska

Men · Americas · provisional rating

Ratings

Athlete ratings by board
BoardGenderRatingRankMove
ContinuousMen4341541• new
OverallMen4341542• 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)

Southern States 200 · Mar 18, 2026 · 203mi continuouscounts toward rating
place 4 · 2d 21:02:02 · difficulty 1.01 · field 1.37 · quality 0.87
1,202