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| Name: | Kokubu, Sayaka | 國分さやか |
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| Club: | Eーランニングクラブ | ||
| Residence: | Osaka | ||
| Year of birth: | 1975 | (Cat. german: W50) | |
| Date of birth: | 28.06.1975 | (Cat. internat.: W50) | |
| Nationality: | JPN  |
Japan | |
| RunnerID: | 377431 | ||
51 search results (51 Events, 5025.77 km). (More)
| 2025 | 4 Events, 470.934 km (More) | ||||
|---|---|---|---|---|---|
| 05.-07.12.2025 | Chiangmai Thailand by UTMB - CHIANG DAO 100 (THA) | 100mi | |||
| 47:32:41 h | Kokubu, Sayaka | Overall: 349 | F: 50 | Cat W50: 12 | |
| 19.10.2025 | River Shimanto 100km (JPN) | 100km | |||
| 12:45:24 h | Kokubu, Sayaka | Overall: 530 | F: 91 | Cat W50: 8 | |
| 14.-15.09.2025 | Shinetsu Five Mountains Trail 110km (JPN) | 110km | |||
| 21:27:03 h | Kokubu, Sayaka | Overall: 226 | F: 36 | Cat W50: 6 | |
| 20.07.2025 | OSJ Ontake 100km Ultra Trail (JPN) | 100km | |||
| 16:34:18 h | Kokubu, Sayaka | *Osaka | Overall: 609 | F: 86 | Cat W50: 29 |
| 2024 | 4 Events, 540 km (More) | ||||
| 06.-08.12.2024 | Chiangmai Thailand by UTMB - TRANS-INT 160 (THA) | 175km | |||
| 45:54:25 h | Kokubu, Sayaka | Overall: 164 | F: 25 | Cat W45: 3 | |
| 20.10.2024 | River Shimanto 100km (JPN) | 100km | |||
| 10:24:50 h | Kokubu, Sayaka | Overall: 220 | F: 23 | Cat W45: 5 | |
| 14.07.2024 | OSJ Ontake 100km Ultra Trail (JPN) | 100km | |||
| 15:04:55 h | Kokubu, Sayaka | *Osaka | Overall: 313 | F: 36 | Cat W45: 6 |
| 16.-17.02.2024 | Tarawera 100 Mile Endurance Run (NZL) | 165km | |||
| 26:47:53 h | Kokubu, Sayaka | Overall: 85 | F: 17 | Cat W45: 2 | |
| 2023 | 4 Events, 565.868 km (More) | ||||
| 16.-18.09.2023 | Shinetsu Five Mountains Trail 100 mile (JPN) | 100mi | |||
| 32:05:43 h | Kokubu, Sayaka | *Osaka Pref. | Overall: 170 | F: 23 | Cat W45: 8 |
| 15.-16.07.2023 | OSJ Ontake 100 Mile Ultra Trail (JPN) | 100mi | |||
| 23:38:24 h | Kokubu, Sayaka | ゲンカンズ | Overall: 43 | F: 4 | Cat W45: 1 |
| 21.05.2023 | Saba Highway Ultramarathon (JPN) | 77km | |||
| 9:09:38 h | Kokubu, Sayaka | *Osaka | Overall: 48 | F: 7 | Cat W45: 3 |
| 21.-23.04.2023 | Ultra-Trail Mt. Fuji (UTMF) (JPN) | 167km | |||
| 38:06:34 h | Kokubu, Sayaka | *Osaka | Overall: 741 | F: 83 | Cat W45: 19 |
| 2022 | 5 Events, 648.868 km (More) | ||||
| 23.10.2022 | Osorakan-Trail 82 km (JPN) | 82km | |||
| 15:15:50 h | Kokubu, Sayaka | Overall: 47 | F: 2 | Cat W45: 1 | |
| 17.-19.09.2022 | Shinetsu Five Mountains Trail 100 mile (JPN) | 100mi | |||
| 29:45:40 h | Kokubu, Sayaka | *Osaka Pref. | Overall: 81 | F: 8 | Cat W45: 2 |
| 16.-17.07.2022 | OSJ Ontake 100 Mile Ultra Trail (JPN) | 100mi | |||
| 21:38:12 h | Kokubu, Sayaka | *Osaka | Overall: 22 | F: 1 | Cat W45: 1 |
| 18.06.2022 | OSJ Yamanaka Onsen Trail Run (JPN) | 78km | |||
| 15:18:05 h | Kokubu, Sayaka | Overall: 59 | F: 9 | Cat W45: 2 | |
| 22.-24.04.2022 | Ultra-Trail Mt. Fuji (UTMF) (JPN) | 167km | |||
| 27:37:13 h | Kokubu, Sayaka | ポリジン | Overall: 161 | F: 16 | Cat W45: 7 |
| 2021 | 1 Event, 100 km (More) | ||||
| 06.-07.11.2021 | OSJ Kami 100 (JPN) | 100km | |||
| 18:32:14 h | Kokubu, Sayaka | *Osaka | Overall: 71 | F: 10 | Cat W45: 4 |
| 2019 | 5 Events, 527 km (More) | ||||
| 03.11.2019 | Ninja Trail Run (JPN) | 48km | |||
| 8:54:23 h | Kokubu, Sayaka | Overall: 249 | F: 29 | Cat W40: 6 | |
| 21.-22.09.2019 | SkyView Ultra-Trail 140 - Yamada Noboru Memorial Cup (JPN) | 143km | |||
| 35:14:10 h | Kokubu, Sayaka | Overall: 399 | F: 40 | Cat W40: 9 | |
| 30.08.-01.09.2019 | Ultra Trail Tour du Mont Blanc (UTMB) (FRA) | 171km | |||
| 41:59:47 h | Kokubu, Sayaka | *Osaka | Overall: 868 | F: 59 | Cat W40: 13 |
| 09.06.2019 | Koyasan and Ryujin-Onsen 100 Km Ultra Marathon (JPN) | 100km | |||
| 10:32:38 h | Kokubu, Sayaka | Eーランニングクラブ | Overall: 28 | F: 3 | Cat W40: 2 |
| 19.05.2019 | Osorakan-Trail (JPN) | 65km | |||
| 10:52:14 h | Kokubu, Sayaka | Overall: 77 | F: 2 | Cat W40: 2 | |
| 2018 | 5 Events, 483.5 km (More) | ||||
| 03.11.2018 | Ninja Trail Run (JPN) | 48km | |||
| 8:21:07 h | Kokubu, Sayaka | Overall: 199 | F: 20 | Cat W40: 1 | |
| 07.-08.10.2018 | Hasetsune Cup - Japan Mountain Endurance Race (JPN) | 71.5km | |||
| 13:54:14 h | Kokubu, Sayaka | *Osaka | Overall: 248 | F: 26 | Cat W40: 4 |
| 22.-23.09.2018 | SkyView Ultra-Trail 120 - Yamada Noboru Memorial Cup (JPN) | 129km | |||
| 24:51:12 h | Kokubu, Sayaka | *Osaka Pref. | Overall: 63 | F: 9 | Cat W40: 2 |
| 27.05.2018 | Osorakan-Trail (JPN) | 65km | |||
| 11:32:56 h | Kokubu, Sayaka | Overall: 69 | F: 6 | Cat W40: 2 | |
| 27.-29.04.2018 | Ultra-Trail Mt. Fuji (UTMF) (JPN) | 170km | |||
| 35:54:32 h | Kokubu, Sayaka | Overall: 245 | F: 29 | Cat W40: 8 | |
| 2017 | 6 Events, 466.9 km (More) | ||||
| 08.-09.10.2017 | Hasetsune Cup - Japan Mountain Endurance Race (JPN) | 71.5km | |||
| 13:31:57 h | Kokubu, Sayaka | Overall: 324 | F: 37 | Cat W40: 8 | |
| 23.-24.09.2017 | SkyView Ultra-Trail 120 - Yamada Noboru Memorial Cup (JPN) | 129km | |||
| 27:08:54 h | Kokubu, Sayaka | *Osaka Pref. | Overall: 145 | F: 15 | Cat W40: 3 |
| 10.09.2017 | Hakuba Int. Trail Run (JPN) | 51.4km | |||
| 6:50:01 h | Kokubu, Sayaka | Overall: 143 | F: 13 | Cat W40: 1 | |
| 15.07.2017 | OSJ Ontake 100km Ultra Trail (JPN) | 100km | |||
| 12:37:13 h | Kokubu, Sayaka | *Osaka Pref. | Overall: 95 | F: 10 | Cat W40: 3 |
| 28.05.2017 | Osorakan-Trail (JPN) | 65km | |||
| 11:51:48 h | Kokubu, Sayaka | Overall: 115 | F: 5 | Cat W40: 2 | |
| 13.05.2017 | Mt. Hiei Int. 50 Km Trail Run (JPN) | 50km | |||
| 9:04:49 h | Kokubu, Sayaka | *Osaka Pref. | Overall: 300 | F: 21 | Cat W40: 5 |
| 2016 | 6 Events, 469.2 km (More) | ||||
| 09.-10.10.2016 | Hasetsune Cup - Japan Mountain Endurance Race (JPN) | 71.5km | |||
| 13:10:07 h | Kokubu, Sayaka | Overall: 324 | F: 23 | Cat W40: 6 | |
| 11.09.2016 | Hakuba Int. Trail Run (JPN) | 53km | |||
| 7:24:21 h | Kokubu, Sayaka | *Osaka Pref. | Overall: 118 | F: 9 | Cat W40: 3 |
| 24.-25.08.2016 | Sur les Traces des Ducs de Savoie (TDS) (ITA) | 119km | |||
| 26:07:38 h | Kokubu, Sayaka | *Osaka | Overall: 296 | F: 22 | Cat W40: 6 |
| 16.07.2016 | OSJ Ontake 100km Ultra Trail (JPN) | 100km | |||
| 13:42:16 h | Kokubu, Sayaka | *Osaka Pref. | Overall: 239 | F: 18 | Cat W40: 7 |
| 22.05.2016 | Kobo Trail 2016 (JPN) | 55.7km | |||
| 10:47:38 h | Kokubu, Sayaka | *Osaka Pref. | Overall: 23 | F: 3 | Cat W40: 3 |
| 24.04.2016 | Okumikawa Power Trail (JPN) | 70km | |||
| 12:32:02 h | Kokubu, Sayaka | *Osaka Pref. | Overall: 383 | F: 33 | Cat W40: 8 |
| 2015 | 6 Events, 387.5 km (More) | ||||
| 29.11.2015 | Kumano Old Trails (JPN) | 50km | |||
| 8:01:10 h | Kokubu, Sayaka | *Osaka Pref. | Overall: 49 | F: 4 | Cat W40: 3 |
| 31.10.-01.11.2015 | Hasetsune Cup - Japan Mountain Endurance Race (JPN) | 71.5km | |||
| 12:08:31 h | Kokubu, Sayaka | Inov-8 | Overall: 385 | F: 20 | Cat W40: 5 |
| 13.09.2015 | Hakuba Int. Trail Run (JPN) | 53km | |||
| 7:03:37 h | Kokubu, Sayaka | Overall: 121 | F: 9 | Cat W40: 3 | |
| 18.07.2015 | OSJ Ontake 100km Ultra Trail (JPN) | 100km | |||
| 13:39:50 h | Kokubu, Sayaka | *Osaka Pref. | Overall: 165 | F: 12 | Cat W40: 5 |
| 30.05.2015 | Mt. Hiei Int. 50 Km Trail Run (JPN) | 50km | |||
| 8:59:10 h | Kokubu, Sayaka | *Osaka Pref. | Overall: 150 | F: 8 | Cat W35: 1 |
| 12.04.2015 | Okumikawa Power Trail (JPN) | 63km | |||
| 11:08:30 h | Kokubu, Sayaka | *Osaka Pref. | Overall: 137 | F: 8 | Cat W35: 4 |
| 2014 | 3 Events, 224.5 km (More) | ||||
| 12.-13.10.2014 | Hasetsune Cup - Japan Mountain Endurance Race (JPN) | 71.5km | |||
| 13:13:59 h | Kokubu, Sayaka | Inov-8 | Overall: 512 | F: 34 | Cat W35: 12 |
| 14.09.2014 | Hakuba Int. Trail Run (JPN) | 53km | |||
| 7:14:44 h | Kokubu, Sayaka | Overall: 89 | F: 9 | Cat W35: 4 | |
| 19.07.2014 | OSJ Ontake 100km Ultra Trail (JPN) | 100km | |||
| 13:27:49 h | Kokubu, Sayaka | *Osaka Pref. | Overall: 155 | F: 7 | Cat W35: 3 |
| 2013 | 1 Event, 71.5 km (More) | ||||
| 13.-14.10.2013 | Hasetsune Cup - Japan Mountain Endurance Race (JPN) | 71.5km | |||
| 13:55:24 h | Kokubu, Sayaka | Overall: 543 | F: 46 | Cat W35: 12 | |
| 2012 | 1 Event, 70 km (More) | ||||
| 20.05.2012 | 70 km Ultra Maranic Osaka (JPN) | 70km | |||
| 8:20:06 h | Kokubu, Sayaka | Overall: 71 | F: 12 | Cat W35: 2 | |
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 | 2022 | 2021 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 100km | 10:24:50 |
12:45:24
(1043/395) |
10:24:50
(374/73) |
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10:32:38
(391/99) |
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Comparison table
Comparison of performances in races with multiple participations
| 2025 | 2024 | 2023 | 2022 | 2021 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hasetsune Cup - Japan Mountain Endurance Race | 6 | 13:54:14 | 13:31:57 | 13:10:07 | 12:08:31 | 13:13:59 | 13:55:24 | |||||||
| OSJ Ontake 100km Ultra Trail | 6 | 16:34:18 | 15:04:55 | 12:37:13 | 13:42:16 | 13:39:50 | 13:27:49 | |||||||
| Hakuba Int. Trail Run | 4 | 6:50:01 | 7:24:21 | 7:03:37 | 7:14:44 | |||||||||
| Osorakan-Trail | 3 | 10:52:14 | 11:32:56 | 11:51:48 | ||||||||||
| SkyView Ultra-Trail 120 - Yamada Noboru Memorial Cup | 3 | 35:14:10 | 24:51:12 | 27:08:54 | ||||||||||
| Ultra-Trail Mt. Fuji (UTMF) | 3 | 38:06:34 | 27:37:13 | 35:54:32 | ||||||||||
| Chiangmai Thailand by UTMB - TRANS-INT 160 | 2 | 47:32:41 | 45:54:25 | |||||||||||
| Ninja Trail Run | 2 | 8:54:23 | 8:21:07 | |||||||||||
| Mt. Hiei Int. 50 Km Trail Run | 2 | 9:04:49 | 8:59:10 | |||||||||||
| Shinetsu Five Mountains Trail 100 mile | 2 | 32:05:43 | 29:45:40 | |||||||||||
| Okumikawa Power Trail | 2 | 12:32:02 | 11:08:30 | |||||||||||
| OSJ Ontake 100 Mile Ultra Trail | 2 | 23:38:24 | 21:38:12 | |||||||||||
| River Shimanto 100km | 2 | 12:45:24 | 10:24:50 |