| Name: | Seki, Masahiro | 関正博 |
|
| Club: | MY☆STAR | ||
| Residence: | Kanagawa Pref. | ||
| Year of birth: | 1967 | (Cat. german: M55) | |
| Date of birth: | 08.10.1967 | (Cat. internat.: M55) | |
| Nationality: | JPN ![]() |
Japan | |
| RunnerID: | 545475 | ||
22 search results (22 Events, 2998.6 km). (More)
| 2025 | 2 Events, 342 km (More) | ||||
|---|---|---|---|---|---|
| 15.-16.11.2025 | Autumn leaves in Okumusashi / Chichibu Journey run (JPN) | 142km | |||
| 21:32:39 h | Seki, Masahiro | MY Star | Overall: 40 | M: 37 | Cat M55: 7 |
| 15.-16.03.2025 | Little Edo Oedo 200k (JPN) | 200km | |||
| 31:16:16 h | Seki, Masahiro | *Kanagawa Pref. | Overall: 53 | M: 48 | Cat M55: 5 |
| 2024 | 1 Event, 142 km (More) | ||||
| 02.-03.11.2024 | Autumn leaves in Okumusashi / Chichibu Journey run (JPN) | 142km | |||
| 22:55:26 h | Seki, Masahiro | *Kanagawa Pref. | Overall: 65 | M: 62 | Cat M55: 17 |
| 2022 | 5 Events, 891 km (More) | ||||
| 15.-16.10.2022 | Yagurazawa Round Trip Pre-Tournament (JPN) | 150km | |||
| 23:52:50 h | Seki, Masahiro | My☆Star | Overall: 12 | M: 11 | Cat M55: 1 |
| 16.07.2022 | OSJ Ontake 100km Ultra Trail (JPN) | 100km | |||
| 14:53:38 h | Seki, Masahiro | My☆Star | Overall: 267 | M: 247 | Cat M50: 42 |
| 05.06.2022 | Ultramarathon Okumusashi (JPN) | 78km | |||
| 7:29:24 h | Seki, Masahiro | My☆Star | Overall: 84 | M: 70 | Cat M50: 7 |
| 02.-08.05.2022 | Reiheishi Michi Kyoto to Nikko - 363 km (JPN) | 363km | |||
| 5d 06:13:00 h | Seki, Masahiro | My☆Star | Overall: 2 | M: 1 | Cat M50: 1 |
| 12.-13.03.2022 | Little Edo Oedo 200k (JPN) | 200km | |||
| 31:01:12 h | Seki, Masahiro | My☆Star | Overall: 58 | M: 52 | Cat M50: 11 |
| 2021 | 3 Events, 343.6 km (More) | ||||
| 16.-17.10.2021 | Tone River Run Up Journey Run Upstream (JPN) | 120km | |||
| 17:55:00 h | Seki, Masahiro | *Kanagawa Pref. | Overall: 23 | M: 22 | Cat M50: 9 |
| 09.-10.10.2021 | Tone River Run Up Journey Run Downstream (JPN) | 155km | |||
| 23:35:00 h | Seki, Masahiro | *Kanagawa Pref. | Overall: 20 | M: 18 | Cat M50: 7 |
| 04.07.2021 | 8-Hour Endurance Race Tokorozawa (JPN) | 8h | |||
| 68.600 km | Seki, Masahiro | MY☆STAR | Overall: 133 | M: 83 | Cat M50: 19 |
| 2020 | 2 Events, 262 km (More) | ||||
| 22.03.2020 | Arakawa Riverside Journey - 56 km (JPN) | 56km | |||
| 6:11:47 h | Seki, Masahiro | *Kanagawa Pref. | Overall: 4 | M: 4 | Cat M50: 2 |
| 22.-23.02.2020 | Little Edo Oedo 205k (JPN) | 206km | |||
| 31:21:09 h | Seki, Masahiro | Mystar | Overall: 71 | M: 66 | Cat M50: 17 |
| 2018 | 1 Event, 78 km (More) | ||||
| 03.06.2018 | Ultramarathon Okumusashi (JPN) | 78km | |||
| 8:22:22 h | Seki, Masahiro | My☆Star Hurricane | Overall: 212 | M: 185 | Cat M50: 34 |
| 2017 | 2 Events, 332 km (More) | ||||
| 04.06.2017 | Ultramarathon Okumusashi (JPN) | 78km | |||
| 8:27:44 h | Seki, Masahiro | My☆Star | Overall: 306 | M: 265 | Cat M45: 49 |
| 03.-05.05.2017 | River Road Foot Race 254 Km (JPN) | 254km | |||
| 2d 00:27:41 h | Seki, Masahiro | Overall: 29 | M: 27 | Cat M45: 9 | |
| 2016 | 2 Events, 178 km (More) | ||||
| 12.06.2016 | Hida Takayama 100 km Ultramarathon (JPN) | 100km | |||
| 13:55:53 h | Seki, Masahiro | Overall: 1331 | M: 1176 | Cat M45: 198 | |
| 05.06.2016 | Ultramarathon Okumusashi (JPN) | 78km | |||
| 7:22:05 h | Seki, Masahiro | My☆Star Hurricane | Overall: 118 | M: 113 | Cat M45: 20 |
| 2015 | 3 Events, 330 km (More) | ||||
| 20.-21.09.2015 | Karisakatoge beyond Chichibu Run (JPN) | 153km | |||
| 21:52:41 h | Seki, Masahiro | My☆Star | Overall: 32 | M: 30 | Cat M45: 6 |
| 22.06.2015 | Ultramarathon Okumusashi (JPN) | 77km | |||
| 7:41:41 h | Seki, Masahiro | My☆Star Hurricane | Overall: 187 | M: 174 | Cat M45: 32 |
| 19.04.2015 | Fuji 5 Lakes 100 km Challenge (JPN) | 100km | |||
| 9:58:08 h | Seki, Masahiro | MY☆STAR | Overall: 119 | M: 108 | Cat M45: 19 |
| 2014 | 1 Event, 100 km (More) | ||||
| 08.06.2014 | Hida Takayama 100 km Ultramarathon (JPN) | 100km | |||
| 12:29:11 h | Seki, Masahiro | MY☆STAR | Overall: 455 | M: 420 | Cat M45: 70 |
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 | 2022 | 2021 | 2020 | 2018 | 2017 | 2016 | 2015 | 2014 |
|---|
Comparison table
Comparison of performances in races with multiple participations
| 2025 | 2024 | 2022 | 2021 | 2020 | 2018 | 2017 | 2016 | 2015 | 2014 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Ultramarathon Okumusashi | 5 | 7:29:24 | 8:22:22 | 8:27:44 | 7:22:05 | 7:41:41 | |||||
| Little Edo Oedo 205k | 3 | 31:16:16 | 31:01:12 | 31:21:09 | |||||||
| Autumn leaves in Okumusashi / Chichibu Journey run | 2 | 21:32:39 | 22:55:26 | ||||||||
| Hida Takayama 100 km Ultramarathon | 2 | 13:55:53 | 12:29:11 |





