| Name: | Koyama, Tomoko | 小山朋子 |
|
| Club: | Jr石タカg | ||
| Residence: | Hokkaido Pref. | ||
| Year of birth: | 1975 | (Cat. german: W50) | |
| Date of birth: | 00.00.0000 | (Cat. internat.: W50) | |
| Nationality: | JPN ![]() |
Japan | |
| RunnerID: | 704622 | ||
5 search results (5 Events, 250 km). (More)
| 2025 | 1 Event, 50 km (More) | ||||
|---|---|---|---|---|---|
| 29.06.2025 | Lake Saroma 50 Km Ultramarathon (JPN) | 50km | |||
| 6:48:13 h | Koyama, Tomoko | Overall: 173 | F: 52 | Cat W45: 7 | |
| 2019 | 1 Event, 50 km (More) | ||||
| 30.06.2019 | Lake Saroma 50 Km Ultramarathon (JPN) | 50km | |||
| 7:15:44 h | Koyama, Tomoko | Overall: 324 | F: 104 | Cat W40: 18 | |
| 2017 | 1 Event, 50 km (More) | ||||
| 25.06.2017 | Lake Saroma 50 Km Ultramarathon (JPN) | 50km | |||
| 7:13:28 h | Koyama, Tomoko | Jr石タカg | Overall: 330 | F: 130 | Cat W40: 27 |
| 2016 | 1 Event, 50 km (More) | ||||
| 26.06.2016 | Lake Saroma 50 Km Ultramarathon (JPN) | 50km | |||
| 6:47:43 h | Koyama, Tomoko | 石タカg | Overall: 290 | F: 125 | Cat W40: 21 |
| 2015 | 1 Event, 50 km (More) | ||||
| 28.06.2015 | Lake Saroma 50 Km Ultramarathon (JPN) | 50km | |||
| 6:50:16 h | Koyama, Tomoko | 石タカg | Overall: 299 | F: 111 | Cat W35: 11 |
Personal bests
Your list of personal best performances only contains performances of races which can be included into rankings.
In brackets rank in yearly international/national rankings.
| PB | 2025 | 2019 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|
| 50km | 6:47:43 |
6:48:13
(5638/89) |
7:15:44
(6767/204) |
7:13:28
(5519/139) |
6:47:43
(4731/207) |
6:50:16
(4748/116) |
Comparison table
Comparison of performances in races with multiple participations
| 2025 | 2019 | 2017 | 2016 | 2015 | ||
|---|---|---|---|---|---|---|
| Lake Saroma 50 Km Ultramarathon | 5 | 6:48:13 | 7:15:44 | 7:13:28 | 6:47:43 | 6:50:16 |





