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

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Seong-Il Shin

Men · Asia · b. 1967 (50-59) · provisional rating

Also seen as: Shin, Seong-Il

Ratings

Athlete ratings by board
BoardGenderRatingRankMove
ContinuousMen2710861• new
OverallMen2713381• 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)

Trans Korea 622K South to North · Jul 2, 2023 · 386.49mi continuouscounts toward rating
place 7 · 6d 01:25:00 · difficulty 1.19 · field 0.41 · quality 0.84
406
(race) · · ?mi counts toward rating
place 55 · 1d 10:55:00 · difficulty ? · field ? · quality 0.50
121