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

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Hathaichanok Chantraraphit

Women · Americas · provisional rating

Ratings

Athlete ratings by board
BoardGenderRatingRankMove
ContinuousWomen1,32372• new
OverallWomen1,32372• 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 · Mar 27, 2026 · 304mi continuouscounts toward rating
place 43 · 6d 02:31:25 · difficulty 2.20 · field 2.45 · quality 0.36
1,934
Bigfoot 200 Endurance Run · Aug 9, 2024 · 200mi continuouscounts toward rating
place 83 · 3d 10:25:16 · difficulty 2.65 · field 1.90 · quality 0.34
1,689
Cocodona 250 Mile Race · May 6, 2024 · 250mi continuouscounts toward rating
place 131 · 4d 13:57:27 · difficulty 2.45 · field 2.43 · quality 0.33
1,995
Moab 240 Endurance Run · Oct 13, 2023 · 240mi continuous
place 47 · 4d 02:58:27 · difficulty 1.95 · field 1.74 · quality 0.55
1,859
Moab 240 Endurance Run · Oct 7, 2022 · 240mi continuous
place 82 · 4d 03:35:12 · difficulty 1.95 · field 1.86 · quality 0.37
1,350
Tahoe 200 Mile Endurance Run · Jun 17, 2022 · 200mi continuous
place 71 · 3d 16:27:59 · difficulty 2.35 · field 2.02 · quality 0.45
2,137
Moab 240 Endurance Run · Oct 8, 2021 · 240mi continuous
DNF · 240mi covered · difficulty 1.95 · field 1.69 · quality 1.00
1,156
Cocodona 250 Mile Race · May 3, 2021 · 250mi continuous
place 80 · 4d 21:22:13 · difficulty 2.45 · field 2.19 · quality 0.42
2,277