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

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Nicky Booyens

Women · RSA · b. 1978 (40-49) · provisional rating

Also seen as: Booyens, Nicky

Ratings

Athlete ratings by board
BoardGenderRatingRankMove
ContinuousWomen166828• new
OverallWomen166828• 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)

Mac Mac Ultra 200 Mile · Jul 2, 2025 · 200mi continuouscounts toward rating
place 2 · 3d 11:30:00 · difficulty 1.00 · field 0.41 · quality 0.80
324
Mac Mac Ultra 200 Mile · May 22, 2024 · 200mi continuouscounts toward rating
place 3 · 3d 12:29:31 · difficulty 1.00 · field 0.41 · quality 0.81
331
Mac Mac Ultra 200 Mile · May 17, 2023 · 200mi continuouscounts toward rating
place 2 · 3d 14:45:37 · difficulty 1.00 · field 0.40 · quality 0.81
326
Tankwa Crossing 200mi · Feb 15, 2023 · 200.7mi continuous
place 2 · 2d 22:31:29 · difficulty 1.00 · field 0.40 · quality 0.97
392
Mac Mac Ultra 200 Mile · May 18, 2022 · 200mi continuous
place 3 · 3d 16:07:03 · difficulty 1.00 · field 0.40 · quality 0.95
385
Mac Mac Ultra 200 Mile · May 18, 2021 · 200mi continuous
place 3 · 3d 11:33:48 · difficulty 1.00 · field 0.40 · quality 0.59
240