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

← Rankings

Sean O'connor

Men · Europe · b. 1976 (50-59) · provisional rating

Also seen as: O'Connor, Sean

Ratings

Athlete ratings by board
BoardGenderRatingRankMove
ContinuousMen6231107• new
OverallMen6231107• new

Why this rank

The Overall rating is the time-decayed mean of this athlete’s best 1 in-window performance scores (highlighted below). Each score = base × difficulty × field-strength × quality.

Career results (200+ mile tier)

Spine Race · Jan 11, 2026 · 268mi continuouscounts toward rating
place 39 · 5d 12:35:11 · difficulty 2.20 · field 1.45 · quality 0.56
1,769
Spine Race · Jan 15, 2023 · 268mi continuous
place 27 · 5d 06:00:37 · difficulty 2.20 · field 1.02 · quality 0.49
1,096