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

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Ashlie Ithurburn

Women · Americas · provisional rating

Ratings

Athlete ratings by board
BoardGenderRatingRankMove
ContinuousWomen366538• new
OverallWomen366538• 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)

Southern States 200 · Mar 19, 2025 · 203mi continuouscounts toward rating
place 3 · 2d 22:11:44 · difficulty 1.01 · field 0.87 · quality 0.60
522
Southern States 200 · Apr 12, 2024 · 203mi continuouscounts toward rating
place 5 · 2d 19:25:00 · difficulty 1.01 · field 1.70 · quality 0.56
961
Tahoe 200 Mile Endurance Run · Jul 21, 2023 · 200mi continuouscounts toward rating
place 61 · 3d 20:55:18 · difficulty 2.35 · field 1.59 · quality 0.49
1,824