| date | competition | distance | rank |
|---|---|---|---|
| 2025-11-27 | ISU Short Track World Tour #4 | 1500 m | 12 |
| 2025-11-20 | ISU Short Track World Tour #3 | 1500 m | 23 |
| 2025-11-20 | ISU Short Track World Tour #3 | 1000 m | 30 |
| 2025-10-16 | ISU Short Track World Tour #2 | 1500 m | 13 |
| 2025-10-16 | ISU Short Track World Tour #2 | 1500 m | 13 |
| 2025-10-09 | ISU Short Track World Tour #1 | 1500 m | 18 |
| 2025-03-14 | CNSG 2025 ISU World Short Track Championships Beijing | 1500 m | 12 |
| 2025-03-14 | CNSG 2025 ISU World Short Track Championships Beijing | 1000 m | |
| 2025-02-14 | ISU Short Track World Tour | 1500 m | |
| 2025-02-14 | ISU Short Track World Tour | 1000 m | |
| 2025-02-07 | ISU Short Track World Tour | 1000 m | 26 |
| 2025-02-07 | ISU Short Track World Tour | 1500 m | 6 |
| 2024-12-13 | ISU Short Track World Tour | 1500 m | 33 |
| 2024-12-13 | ISU Short Track World Tour | 500 m | 41 |
| 2024-12-13 | ISU Short Track World Tour | 1000 m | 40 |
| 2024-12-06 | ISU Short Track World Tour | 1500 m | 59 |
| 2024-12-06 | ISU Short Track World Tour | 500 m | 52 |
| 2024-12-06 | ISU Short Track World Tour | 1000 m | 59 |
| 2024-03-15 | ISU World Short Track Speed Skating Championships | 1500 m | 4 |
| 2024-03-15 | ISU World Short Track Speed Skating Championships | 1000 m | 11 |
| 2024-02-16 | ISU World Cup Short Track Speed Skating | 1500 m | 11 |
| 2024-02-16 | ISU World Cup Short Track Speed Skating | 1000 m | 3 |
| 2024-02-09 | ISU World Cup Short Track Speed Skating | 1500 m | 21 |
| 2024-02-09 | ISU World Cup Short Track Speed Skating | 1000 m | 12 |
| 2023-01-27 | ISU World Junior Short Track Speed Skating Championships | 1500 m | 5 |
| 2023-01-27 | ISU World Junior Short Track Speed Skating Championships | 500 m | 16 |
| 2023-01-27 | ISU World Junior Short Track Speed Skating Championships | 1000 m | |
| 2022-12-16 | ISU World Cup Short Track Speed Skating | 1500 m | 16 |
| 2022-12-16 | ISU World Cup Short Track Speed Skating | 500 m | |
| 2022-12-09 | ISU World Cup Short Track Speed Skating | 1000 m | 21 |
| 2022-12-09 | ISU World Cup Short Track Speed Skating | 1500 m | 22 |
| 2022-11-10 | ISU Four Continents Short Track Speed Skating Championships | 1500 m | 4 |
| 2022-11-04 | ISU World Cup Short Track Speed Skating | 1500 m | 9 |
| 2022-11-04 | ISU World Cup Short Track Speed Skating | 1000 m | 10 |
| 2022-10-28 | ISU World Cup Short Track Speed Skating | 1500 m | 8 |
| 2022-10-28 | ISU World Cup Short Track Speed Skating | 1000 m | 14 |
This is the official classification the ISU publishes per distance: what Kosei Hayashi entered and where they finished. The race-by-race record — heats, semi-finals, split times and video — is built on demand from the same database.
Short Track Stats · Japan · every skater · statistics · competitions