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

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Jason Hammond

Men · Americas

Ratings

Athlete ratings by board
BoardGenderRatingRankMove
ContinuousMen1,652181• new
OverallMen1,652181• new

Why this rank

The Overall rating is the time-decayed mean of this athlete’s best 3 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 148 · 4d 14:29:08 · difficulty 2.45 · field 2.30 · quality 0.30
1,667
Bigfoot 200 Endurance Run · Aug 8, 2025 · 200mi continuouscounts toward rating
place 64 · 3d 11:43:07 · difficulty 2.65 · field 2.50 · quality 0.33
2,173
Bigfoot 200 Endurance Run · Aug 9, 2024 · 200mi continuouscounts toward rating
place 68 · 3d 07:43:10 · difficulty 2.65 · field 1.90 · quality 0.36
1,793