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| Name: | Yasui, Kazufumi | 安井和史 |
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| Club: | Cr2西日本 | ||
| Residence: | Osaka Pref. | ||
| Year of birth: | 1978 | (Cat. german: M45) | |
| Date of birth: | 00.00.0000 | (Cat. internat.: M45) | |
| Nationality: | JPN  |
Japan | |
| RunnerID: | 1106816 | ||
56 search results (56 Events, 5831.435 km). (More)
| 2025 | 6 Events, 638 km (More) | ||||
|---|---|---|---|---|---|
| 02.-03.11.2025 | OSJ Kami 100 (JPN) | 100km | |||
| 17:46:21 h | Yasui, Kazufumi | TSS | Overall: 43 | M: 40 | Cat M45: 12 |
| 26.04.2025 | Grand Diamond Trailrun (JPN) | 48km | |||
| 7:05:41 h | Yasui, Kazufumi | Overall: 6 | M: 6 | Cat M45: 1 | |
| 20.04.2025 | Fuji 5 Lakes Sparta Challenge (JPN) | 120km | |||
| 13:23:37 h | Yasui, Kazufumi | Overall: 154 | M: 134 | Cat M45: 26 | |
| 22.-24.03.2025 | Mt. Rocco Cannonball Run - 150 km Rainbow (JPN) | 150km | |||
| 17:21:32 h | Yasui, Kazufumi | Tss×まやとねこ | Overall: 1 | M: 1 | Cat M45: 1 |
| 25.-26.01.2025 | Nara Ishibutai 100 - 120km (JPN) | 120km | |||
| 21:32:40 h | Yasui, Kazufumi | Overall: 3 | M: 3 | Cat M45: 1 | |
| 12.01.2025 | Yakushima Ultramarathon 100 Km (JPN) | 100km | |||
| 9:57:29 h | Yasui, Kazufumi | Overall: 3 | M: 3 | Cat M45: 1 | |
| 2024 | 4 Events, 447.7 km (More) | ||||
| 29.-30.12.2024 | Kyoto Great Round 130 km (JPN) | 130km | |||
| 20:53:38 h | Yasui, Kazufumi | Overall: 1 | M: 1 | Cat M45: 1 | |
| 02.-03.11.2024 | OSJ Kami 100 (JPN) | 100km | |||
| 15:34:49 h | Yasui, Kazufumi | TSS | Overall: 4 | M: 4 | Cat M45: 1 |
| 19.-20.10.2024 | Forest of Fagus 24-hour Endurance Trail Running Race (JPN) | 24h | |||
| 114.000 km | Yasui, Kazufumi | Overall: 1 | M: 1 | Cat M45: 1 | |
| 17.-18.08.2024 | 24-hour relay & solo marathon Kobe (JPN) | 24h | |||
| 103.700 km | Yasui, Kazufumi | Overall: 74 | M: 61 | Cat M45: 9 | |
| 2023 | 10 Events, 826.767 km (More) | ||||
| 24.12.2023 | Kobe Agricultural Park Run (JPN) | 50km | |||
| 4:34:31 h | Yasui, Kazufumi | Overall: 8 | M: 8 | Cat M40: 1 | |
| 26.11.2023 | Kumano Old Trails (JPN) | 52km | |||
| 7:18:19 h | Yasui, Kazufumi | TSS | Overall: 19 | M: 18 | Cat M40: 5 |
| 04.-05.11.2023 | OSJ Kami 100 (JPN) | 112km | |||
| 18:02:45 h | Yasui, Kazufumi | *Osaka | Overall: 23 | M: 20 | Cat M40: 7 |
| 19.-20.08.2023 | 24-hour relay & solo marathon Kobe (JPN) | 24h | |||
| 100.300 km | Yasui, Kazufumi | Overall: 79 | M: 66 | Cat M40: 10 | |
| 18.06.2023 | OSJ Yamanaka Onsen Trail Run (JPN) | 78km | |||
| 13:17:26 h | Yasui, Kazufumi | TSS | Overall: 27 | M: 27 | Cat M40: 10 |
| 10.06.2023 | Fairy Trail - Super Long (JPN) | 60km | |||
| 8:56:22 h | Yasui, Kazufumi | Overall: 11 | M: 12 | Cat M40: 5 | |
| 21.05.2023 | Saba Highway Ultramarathon (JPN) | 77km | |||
| 8:21:44 h | Yasui, Kazufumi | *Osaka | Overall: 28 | M: 27 | Cat M40: 3 |
| 13.05.2023 | Mt. Hiei Int. 50 Mile Trail Run (JPN) | 50mi | |||
| 11:02:37 h | Yasui, Kazufumi | *Osaka | Overall: 14 | M: 13 | Cat M40: 4 |
| 21.-23.04.2023 | Ultra-Trail Mt. Fuji (UTMF) (JPN) | 167km | |||
| 26:17:35 h | Yasui, Kazufumi | 走りだそう | Overall: 51 | M: 49 | Cat M40: 13 |
| 09.04.2023 | AYABE Trailrun (JPN) | 50km | |||
| 6:10:08 h | Yasui, Kazufumi | TSS | Overall: 32 | M: 29 | Cat M40: 9 |
| 2022 | 6 Events, 835 km (More) | ||||
| 29.09.2022 | Muraoka 45 km Ultra Marathon (JPN) | 45km | |||
| 4:19:21 h | Yasui, Kazufumi | TSS | Overall: 117 | M: 106 | Cat M40: 16 |
| 05.06.2022 | Nagi Peaks Tough Trail Challenge (JPN) | 57km | |||
| 11:13:45 h | Yasui, Kazufumi | *Osaka | Overall: 85 | M: 80 | Cat M40: 17 |
| 22.05.2022 | Saba Highway Ultramarathon (JPN) | 77km | |||
| 9:13:49 h | Yasui, Kazufumi | *Osaka | Overall: 45 | M: 38 | Cat M40: 6 |
| 21.05.2022 | Mt. Hiei Int. 50 Km Trail Run (JPN) | 50km | |||
| 7:17:01 h | Yasui, Kazufumi | *Osaka | Overall: 25 | M: 21 | Cat M40: 7 |
| 30.04.2022 | Shiga 1 Round Trail (JPN) | 438km | |||
| 6d 12:53:24 h | Yasui, Kazufumi | Overall: 9 | M: 9 | Cat M40: 5 | |
| 19.-20.03.2022 | Mt. Rocco Cannonball Run - 168 km Rainbow (JPN) | 168km | |||
| 18:51:57 h | Yasui, Kazufumi | TSS | Overall: 1 | M: 1 | Cat M40: 1 |
| 2021 | 6 Events, 937.868 km (More) | ||||
| 26.-29.11.2021 | TAMBA 100 Adventure Trail - 100mi (JPN) | 100mi | |||
| 2d 10:25:45 h | Yasui, Kazufumi | Overall: 17 | M: 16 | Cat M40: 6 | |
| 12.-14.11.2021 | Osaka Natsunojin Kurondo Rondo - 180 km (JPN) | 180km | |||
| 34:39:44 h | Yasui, Kazufumi | Overall: 1 | M: 1 | Cat M40: 1 | |
| 06.-07.11.2021 | OSJ Kami 100 (JPN) | 100km | |||
| 16:42:46 h | Yasui, Kazufumi | TSS | Overall: 26 | M: 25 | Cat M40: 7 |
| 16.-17.10.2021 | Mt. Rocco Cannonball Run - 168 km Rainbow (JPN) | 168km | |||
| 17:26:41 h | Yasui, Kazufumi | 「Tss」「走りだそう」 | Overall: 1 | M: 1 | Cat M40: 1 |
| 23.-25.04.2021 | TAMBA 100 Adventure Trail - Pre-stage (JPN) | 100mi | |||
| 2d 01:08:16 h | Yasui, Kazufumi | Overall: 4 | M: 4 | Cat M40: 1 | |
| 20.-21.03.2021 | Mt. Rocco Cannonball Run - 168 km Rainbow (JPN) | 168km | |||
| 16:55:05 h | Yasui, Kazufumi | Overall: 1 | M: 1 | Cat M40: 1 | |
| 2020 | 3 Events, 380 km (More) | ||||
| 17.-18.10.2020 | Mt. Rocco Cannonball Run - 112 Km Power (JPN) | 112km | |||
| 12:56:55 h | Yasui, Kazufumi | 走りだそう | Overall: 1 | M: 1 | Cat M40: 1 |
| 21.-22.03.2020 | Mt. Rocco Cannonball Run - 168 km Rainbow (JPN) | 168km | |||
| 23:57:15 h | Yasui, Kazufumi | 山sunq | Overall: 2 | M: 2 | Cat M40: 2 |
| 12.01.2020 | Yakushima Ultramarathon 100 Km (JPN) | 100km | |||
| 11:36:11 h | Yasui, Kazufumi | Overall: 22 | M: 19 | Cat M40: 6 | |
| 2019 | 12 Events, 1054.1 km (More) | ||||
| 03.11.2019 | Ninja Trail Run (JPN) | 48km | |||
| 6:14:13 h | Yasui, Kazufumi | Overall: 25 | M: 23 | Cat M40: 4 | |
| 29.09.2019 | Yasaka Ultra Marathon in Hamada - 100 km (JPN) | 100km | |||
| 11:42:02 h | Yasui, Kazufumi | Overall: 12 | M: 11 | Cat M40: 1 | |
| 15.09.2019 | Tango 100 km Ultramarathon (JPN) | 100km | |||
| 13:28:27 h | Yasui, Kazufumi | 城run会 | Overall: 704 | M: 625 | Cat M40: 82 |
| 08.09.2019 | 100 km Ultramarathon Hakusan-Shirakawago (JPN) | 100km | |||
| 12:25:50 h | Yasui, Kazufumi | 走りだそう | Overall: 152 | M: 137 | Cat M40: 17 |
| 03.-04.08.2019 | 24-hour relay & solo marathon Kobe (JPN) | 24h | |||
| 130.900 km | Yasui, Kazufumi | Overall: 41 | M: 32 | Cat M40: 8 | |
| 30.06.2019 | Fairy Trail - Super Long (JPN) | 60km | |||
| 9:54:00 h | Yasui, Kazufumi | Overall: 46 | M: 43 | Cat M40: 9 | |
| 09.06.2019 | Koyasan and Ryujin-Onsen 100 Km Ultra Marathon (JPN) | 100km | |||
| 10:10:31 h | Yasui, Kazufumi | クラブr2西日本 | Overall: 21 | M: 20 | Cat M40: 2 |
| 02.06.2019 | Rokko 5 Peaks Trail Race (JPN) | 51.2km | |||
| 7:51:30 h | Yasui, Kazufumi | *Osaka Pref. | Overall: 5 | M: 5 | Cat M40: 2 |
| 25.05.2019 | Mt. Hiei Int. 50 Km Trail Run (JPN) | 50km | |||
| 8:56:55 h | Yasui, Kazufumi | *Osaka Pref. | Overall: 85 | M: 70 | Cat M40: 19 |
| 12.05.2019 | Ebisu-Daikoku 100 km Marathon (JPN) | 100km | |||
| 12:20:20 h | Yasui, Kazufumi | 城ラン会 | Overall: 177 | M: 165 | Cat M40: 18 |
| 13.04.2019 | Okuizumo Ultra Orochi 100km Tooashi (JPN) | 102km | |||
| 9:32:28 h | Yasui, Kazufumi | Overall: 13 | M: 12 | Cat M40: 5 | |
| 23.-24.03.2019 | Mt. Rocco Cannonball Run - 112 Km Power (JPN) | 112km | |||
| 14:55:00 h | Yasui, Kazufumi | 山sunq | Overall: 12 | M: 12 | Cat M40: 5 |
| 2018 | 9 Events, 712 km (More) | ||||
| 24.12.2018 | Kobe Nougyoukouen Run (JPN) | 50km | |||
| 4:58:15 h | Yasui, Kazufumi | Overall: 7 | M: 6 | Cat M35: 1 | |
| 20.-21.10.2018 | Mt. Rocco Cannonball Run - 112 Km Power (JPN) | 112km | |||
| 14:31:00 h | Yasui, Kazufumi | 山sunq | Overall: 4 | M: 4 | Cat M35: 1 |
| 14.10.2018 | Kohechi Trail Journey (JPN) | 57.8km | |||
| 8:01:49 h | Yasui, Kazufumi | *Osaka Pref. | Overall: 7 | M: 7 | Cat M35: 2 |
| 23.09.2018 | Forestrail Shinjo-Hiruzen (JPN) | 75km | |||
| 11:10:31 h | Yasui, Kazufumi | Overall: 24 | M: 24 | Cat M35: 5 | |
| 16.09.2018 | Tango 100 km Ultramarathon (JPN) | 100km | |||
| 12:57:05 h | Yasui, Kazufumi | Cr2西日本 | Overall: 561 | M: 511 | Cat M35: 54 |
| 04.-05.08.2018 | 24-hour relay & solo marathon Kobe (JPN) | 24h | |||
| 112.200 km | Yasui, Kazufumi | Overall: 71 | M: 58 | Cat M35: 10 | |
| 17.06.2018 | Echigo Country Trail (JPN) | 53km | |||
| 8:50:26 h | Yasui, Kazufumi | *Osaka Pref. | Overall: 154 | M: 142 | Cat M35: 30 |
| 10.06.2018 | Koyasan and Ryujin-Onsen 100 Km Ultra Marathon (JPN) | 100km | |||
| 11:36:14 h | Yasui, Kazufumi | Overall: 52 | M: 47 | Cat M35: 7 | |
| 14.04.2018 | Osaka Nature Trail Grand Traverse 52 (JPN) | 52km | |||
| 8:46:18 h | Yasui, Kazufumi | Overall: 57 | M: 52 | Cat M35: 7 | |
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 | 2020 | 2019 | 2018 | |
|---|---|---|---|---|---|---|---|---|---|
| 100km | 10:10:31 |
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10:10:31
(1881/762) |
11:36:14
(4074/1831) |
Comparison table
Comparison of performances in races with multiple participations
| 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | ||
|---|---|---|---|---|---|---|---|---|---|
| OSJ Kami 100 | 4 | 17:46:21 | 15:34:49 | 18:02:45 | 16:42:46 | ||||
| Mt. Rocco Cannonball Run - 168 km Rainbow | 4 | 17:21:32 | 18:51:57 | 16:55:05 | 23:57:15 | ||||
| 24-hour relay & solo marathon Kobe | 4 | 103.700 | 100.300 | 130.900 | 112.200 | ||||
| Mt. Rocco Cannonball Run - 112 Km Power | 3 | 12:56:55 | 14:55:00 | 14:31:00 | |||||
| Fairy Trail - Super Long | 2 | 8:56:22 | 9:54:00 | ||||||
| Yakushima Ultramarathon 100 Km | 2 | 9:57:29 | 11:36:11 | ||||||
| Mt. Hiei Int. 50 Km Trail Run | 2 | 7:17:01 | 8:56:55 | ||||||
| Koyasan and Ryujin-Onsen 100 Km Ultra Marathon | 2 | 10:10:31 | 11:36:14 | ||||||
| Saba Highway Ultramarathon | 2 | 8:21:44 | 9:13:49 | ||||||
| Tango 100 km Ultramarathon | 2 | 13:28:27 | 12:57:05 |