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

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Katie O'Connor

Women · Americas · provisional rating

Ratings

Athlete ratings by board
BoardGenderRatingRankMove
ContinuousWomen731214• new
OverallWomen731214• 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)

Cocodona 250 Mile Race · May 5, 2025 · 250mi continuouscounts toward rating
place 87 · 4d 13:20:23 · difficulty 2.45 · field 2.43 · quality 0.33
1,950
Bigfoot 200 Endurance Run · Aug 11, 2023 · 200mi continuouscounts toward rating
place 78 · 4d 00:29:56 · difficulty 2.65 · field 1.81 · quality 0.36
1,711