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

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Peter Morris

Men · Americas · provisional rating

Ratings

Athlete ratings by board
BoardGenderRatingRankMove
ContinuousMen723824• new
OverallMen723824• 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)

Arizona Monster 300 · Apr 4, 2025 · 304mi continuouscounts toward rating
place 163 · 6d 10:10:36 · difficulty 2.20 · field 2.26 · quality 0.35
1,761
Bigfoot 200 Endurance Run · Aug 9, 2024 · 200mi continuous
DNS · 200mi covered · difficulty 2.65 · field 1.90 · quality ?
Moab 240 Endurance Run · Oct 13, 2023 · 240mi continuouscounts toward rating
place 77 · 4d 11:11:52 · difficulty 1.95 · field 1.74 · quality 0.47
1,611
Bigfoot 200 Endurance Run · Aug 11, 2023 · 200mi continuous
DNS · 200mi covered · difficulty 2.65 · field 1.81 · quality ?
Tahoe 200 Mile Endurance Run · Jul 21, 2023 · 200mi continuouscounts toward rating
place 80 · 4d 01:02:53 · difficulty 2.35 · field 1.59 · quality 0.45
1,687