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

← Rankings

T.R. Jamar

Men · Americas · provisional rating

Ratings

Athlete ratings by board
BoardGenderRatingRankMove
ContinuousMen1,144403• new
OverallMen1,144403• 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)

Tahoe 200 Mile Endurance Run · Jun 13, 2025 · 200mi continuouscounts toward rating
place 69 · 3d 16:39:14 · difficulty 2.35 · field 2.32 · quality 0.39
2,137
Cocodona 250 Mile Race · May 6, 2024 · 250mi continuouscounts toward rating
DNF · 250mi covered · difficulty 2.45 · field 2.43 · quality 1.00
2,087
Bigfoot 200 Endurance Run · Aug 11, 2023 · 200mi continuouscounts toward rating
place 47 · 3d 12:49:24 · difficulty 2.65 · field 1.81 · quality 0.45
2,158
Moab 240 Endurance Run · Oct 7, 2022 · 240mi continuous
place 150 · 4d 14:24:08 · difficulty 1.95 · field 1.86 · quality 0.31
1,121