Racecast

Miu Arai

Kaishi Kokusai-Niigata (07) · 12 · Compare head to head

what a rating means
100 is the average runner in the athlete's pool; a rating of 133 means 33% faster than that average runner. Ratings are distance-normalised and course-adjusted, so a hard course and a fast track land on one number. Each pool (high school boys, college women, middle school…) has its own average, and the HS-equivalent view puts every pool on the high-school scale.
Athlete rating —
Races 5
Seasons 2 2024 — 2025
Speed rating — all races

Track & Field

TF speed rating

2025 TF —

Kaishi Kokusai-Niigata (07) · Grade 12 ✱

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2024-08-01 All Japan 77th InterHigh Championships javelin 41.97m — — 0.0%

2024 TF —

Kaishi Kokusai-Niigata (07) · Grade 11

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2023-10-29 Hokushinetsu Region Shinjin Championship discus 25.68m — — 0.0%
2023-10-29 Hokushinetsu Region Shinjin Championship javelin 41.07m — — 0.0%
2023-10-22 Junior Olympics (17th) U18 & U16 javelin 40.48m — — +1.2%
2023-08-06 All Japan 76th InterHigh Championships javelin 39.12m — — -1.6%