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

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Agatha Kerr

Women · Americas · provisional rating

Ratings

Athlete ratings by board
BoardGenderRatingRankMove
ContinuousWomen195745• new
OverallWomen195745• 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)

Moab 240 Endurance Run · Oct 13, 2023 · 240mi continuouscounts toward rating
DNF · 240mi covered · difficulty 1.95 · field 1.74 · quality 1.00
1,189
Bigfoot 200 Endurance Run · Aug 11, 2023 · 200mi continuouscounts toward rating
DNF · 200mi covered · difficulty 2.65 · field 1.81 · quality 1.00
1,680
Tahoe 200 Mile Endurance Run · Jul 21, 2023 · 200mi continuouscounts toward rating
DNF · 200mi covered · difficulty 2.35 · field 1.59 · quality 1.00
1,307
Cowboy 200 · Nov 5, 2022 · 200mi continuous
place 28 · 3d 09:06:15 · difficulty 0.95 · field 1.04 · quality 0.45
447