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

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Julia Addison

Women · Americas · provisional rating

Ratings

Athlete ratings by board
BoardGenderRatingRankMove
ContinuousWomen635340• new
OverallWomen635340• 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 61 · 6d 15:57:13 · difficulty 2.20 · field 2.45 · quality 0.31
1,651
Bigfoot 200 Endurance Run · Aug 11, 2023 · 200mi continuouscounts toward rating
place 91 · 4d 02:55:15 · difficulty 2.65 · field 1.81 · quality 0.34
1,636
Moab 240 Endurance Run · Oct 8, 2021 · 240mi continuous
DNF · 240mi covered · difficulty 1.95 · field 1.69 · quality 1.00
1,156