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

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Nathan Kellogg

Men · Americas · provisional rating

Ratings

Athlete ratings by board
BoardGenderRatingRankMove
ContinuousMen871616• new
OverallMen871615• 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 4, 2026 · 250mi continuouscounts toward rating
place 49 · 3d 15:59:33 · difficulty 2.45 · field 2.30 · quality 0.45
2,512