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

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Jason Massie

Men · Americas · b. 1974 (50-59) · provisional rating

Also seen as: Massie, Jason

Ratings

Athlete ratings by board
BoardGenderRatingRankMove
ContinuousMen858633• new
OverallMen858632• 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 115 · 5d 22:29:47 · difficulty 2.20 · field 2.26 · quality 0.41
2,030
TOR330 - Tor des Géants · Sep 8, 2024 · 205.05mi continuouscounts toward rating
place 363 · 6d 00:54:51 · difficulty 2.65 · field 0.92 · quality 0.26
646
Tahoe 200 Mile Endurance Run · Jul 21, 2023 · 200mi continuouscounts toward rating
place 22 · 3d 09:42:32 · difficulty 2.35 · field 1.59 · quality 0.62
2,300
Cocodona 250 Mile Race · May 2, 2022 · 250mi continuous
place 60 · 4d 08:02:00 · difficulty 2.45 · field 2.18 · quality 0.37
1,948
Bigfoot 200 Endurance Run · Aug 13, 2021 · 200mi continuous
place 72 · 4d 05:17:30 · difficulty 2.65 · field 1.87 · quality 0.37
1,816
Cocodona 250 Mile Race · May 3, 2021 · 250mi continuous
place 104 · 5d 03:40:13 · difficulty 2.45 · field 2.19 · quality 0.39
2,073