| Name: | Onozawa, Tsukasa | 小野沢司 |
|
| Club: | クラーク | ||
| Residence: | Hokkaido Pref. | ||
| Year of birth: | 1963 | (Cat. german: M60) | |
| Date of birth: | 00.00.0000 | (Cat. internat.: M60) | |
| Nationality: | JPN ![]() |
Japan | |
| RunnerID: | 566091 | ||
9 search results (9 Events, 900 km). (More)
| 2025 | 1 Event, 100 km (More) | ||||
|---|---|---|---|---|---|
| 29.06.2025 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 9:53:06 h | Onozawa, Tsukasa | Overall: 320 | M: 292 | Cat M60: 11 | |
| 2024 | 1 Event, 100 km (More) | ||||
| 30.06.2024 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 9:24:02 h | Onozawa, Tsukasa | Overall: 152 | M: 135 | Cat M60: 3 | |
| 2023 | 1 Event, 100 km (More) | ||||
| 25.06.2023 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 9:36:02 h | Onozawa, Tsukasa | Overall: 196 | M: 179 | Cat M55: 16 | |
| 2019 | 1 Event, 100 km (More) | ||||
| 30.06.2019 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 9:05:38 h | Onozawa, Tsukasa | Overall: 146 | M: 131 | Cat M55: 6 | |
| 2018 | 1 Event, 100 km (More) | ||||
| 24.06.2018 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 9:05:14 h | Onozawa, Tsukasa | Overall: 171 | M: 154 | Cat M50: 22 | |
| 2017 | 1 Event, 100 km (More) | ||||
| 25.06.2017 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 9:20:32 h | Onozawa, Tsukasa | クラーク | Overall: 183 | M: 169 | Cat M50: 22 |
| 2016 | 1 Event, 100 km (More) | ||||
| 26.06.2016 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 10:12:09 h | Onozawa, Tsukasa | *Hokkaido Pref. | Overall: 570 | M: 513 | Cat M50: 85 |
| 2015 | 1 Event, 100 km (More) | ||||
| 28.06.2015 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 9:29:17 h | Onozawa, Tsukasa | *Hokkaido | Overall: 297 | M: 266 | Cat M50: 30 |
| 2014 | 1 Event, 100 km (More) | ||||
| 29.06.2014 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 10:03:27 h | Onozawa, Tsukasa | *Hokkaido | Overall: 263 | M: 240 | Cat M50: 19 |
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 | 2018 | 2017 | 2016 | 2015 | 2014 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 100km | 9:05:14 |
9:53:06
(1317/484) |
9:24:02
(911/253) |
9:36:02
(943/340) |
9:05:38
(677/219) |
9:05:14
(745/251) |
9:20:32
(863/309) |
10:12:09
(1939/872) |
9:29:17
(1232/453) |
10:03:27
(1663/484) |
Comparison table
Comparison of performances in races with multiple participations
| 2025 | 2024 | 2023 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | ||
|---|---|---|---|---|---|---|---|---|---|---|
| Lake Saroma 100 Km Ultramarathon | 9 | 9:53:06 | 9:24:02 | 9:36:02 | 9:05:38 | 9:05:14 | 9:20:32 | 10:12:09 | 9:29:17 | 10:03:27 |





