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

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Jonathan Koutstaal

Men · NED · b. 1978 (40-49) · provisional rating

Also seen as: Koutstaal, Jonathan

Ratings

Athlete ratings by board
BoardGenderRatingRankMove
ContinuousMen1613418• new
OverallMen1613415• 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)

SwissPeaks 360 · Sep 1, 2024 · 223.69mi continuouscounts toward rating
place 34 · 5d 02:43:41 · difficulty 1.04 · field 0.48 · quality 0.54
272
(race) · · ?mi
place 44 · 1d 07:42:18 · difficulty ? · field ? · quality 0.52
175
(race) · · ?mi
place 72 · 1d 09:58:37 · difficulty ? · field ? · quality 0.42
144
(race) · · ?mi
place 61 · 1d 06:25:15 · difficulty ? · field ? · quality 0.47
158
(race) · · ?mi counts toward rating
place 30 · 1d 04:46:30 · difficulty ? · field ? · quality 0.59
200
(race) · · ?mi counts toward rating
place 20 · 2d 17:14:00 · difficulty ? · field ? · quality 0.53
267