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| Name: | Koyama, Keiichi | 小山桂一 |
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| Club: | Jr石タカac | ||
| Residence: | Hokkaido Pref. | ||
| Year of birth: | 1975 | (Cat. german: M50) | |
| Date of birth: | 00.00.0000 | (Cat. internat.: M50) | |
| Nationality: | JPN  |
Japan | |
| RunnerID: | 376279 | ||
10 search results (10 Events, 1000 km). (More)
| 2025 | 1 Event, 100 km (More) | ||||
|---|---|---|---|---|---|
| 29.06.2025 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 10:34:10 h | Koyama, Keiichi | Overall: 470 | M: 424 | Cat M45: 57 | |
| 2024 | 1 Event, 100 km (More) | ||||
| 30.06.2024 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 11:19:42 h | Koyama, Keiichi | Overall: 667 | M: 587 | Cat M45: 109 | |
| 2023 | 1 Event, 100 km (More) | ||||
| 25.06.2023 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 12:17:50 h | Koyama, Keiichi | Overall: 1187 | M: 1043 | Cat M45: 189 | |
| 2019 | 1 Event, 100 km (More) | ||||
| 30.06.2019 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 10:59:31 h | Koyama, Keiichi | Overall: 791 | M: 700 | Cat M40: 147 | |
| 2017 | 1 Event, 100 km (More) | ||||
| 25.06.2017 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 10:28:36 h | Koyama, Keiichi | Jr石タカac | Overall: 491 | M: 452 | Cat M40: 101 |
| 2016 | 1 Event, 100 km (More) | ||||
| 26.06.2016 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 10:11:05 h | Koyama, Keiichi | Jr石タカac | Overall: 562 | M: 505 | Cat M40: 115 |
| 2015 | 1 Event, 100 km (More) | ||||
| 28.06.2015 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 10:18:20 h | Koyama, Keiichi | Jr石タカac | Overall: 601 | M: 541 | Cat M35: 85 |
| 2014 | 1 Event, 100 km (More) | ||||
| 29.06.2014 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 10:35:49 h | Koyama, Keiichi | JR石タカAC | Overall: 355 | M: 312 | Cat M35: 50 |
| 2013 | 1 Event, 100 km (More) | ||||
| 30.06.2013 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 10:23:46 h | Koyama, Keiichi | JR石タカAC | Overall: 424 | M: 385 | Cat M35: 67 |
| 2012 | 1 Event, 100 km (More) | ||||
| 24.06.2012 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 10:39:03 h | Koyama, Keiichi | *Hokkaido | Overall: 561 | M: 500 | Cat M35: 79 |
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 | 2024 | 2023 | 2019 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 100km | 10:11:05 |
10:34:10
(1928/723) |
11:19:42
(3022/1080) |
12:17:50
(3937/1945) |
10:59:31
(3114/1348) |
10:28:36
(2177/865) |
10:11:05
(1919/860) |
10:18:20
(2295/955) |
10:35:49
(2288/669) |
10:23:46
(2134/634) |
10:39:03
(2384/633) |
Comparison table
Comparison of performances in races with multiple participations
| 2025 | 2024 | 2023 | 2019 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lake Saroma 100 Km Ultramarathon | 10 | 10:34:10 | 11:19:42 | 12:17:50 | 10:59:31 | 10:28:36 | 10:11:05 | 10:18:20 | 10:35:49 | 10:23:46 | 10:39:03 |