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

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Jennifer Erath

Women · Americas

Ratings

Athlete ratings by board
BoardGenderRatingRankMove
ContinuousWomen1,19087• new
OverallWomen1,19087• 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)

Arizona Monster 300 · Mar 27, 2026 · 304mi continuouscounts toward rating
place 47 · 6d 05:26:05 · difficulty 2.20 · field 2.45 · quality 0.35
1,866
Arizona Monster 300 · Apr 4, 2025 · 304mi continuouscounts toward rating
DNF · 304mi covered · difficulty 2.20 · field 2.26 · quality 1.00
1,743