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

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Jennifer Smithson

Women · Americas

Ratings

Athlete ratings by board
BoardGenderRatingRankMove
ContinuousWomen775198• new
OverallWomen775198• 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)

Southern States 200 · Mar 18, 2026 · 203mi continuouscounts toward rating
place 17 · 3d 19:36:52 · difficulty 1.01 · field 1.37 · quality 0.52
722
Cocodona 250 Mile Race · May 5, 2025 · 250mi continuouscounts toward rating
place 183 · 5d 03:29:19 · difficulty 2.45 · field 2.43 · quality 0.26
1,566