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| Name: | Seo, Takashi | 瀬尾崇 |
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| Club: | 〇〇倶楽部 | ||
| Residence: | Ibaraki Pref. | ||
| Year of birth: | 1973 | (Cat. german: M50) | |
| Date of birth: | 26.03.1973 | (Cat. internat.: M50) | |
| Nationality: | JPN  |
Japan | |
| RunnerID: | 287518 | ||
46 search results (46 Events, 3804.036 km). (More)
| 2025 | 2 Events, 98 km (More) | ||||
|---|---|---|---|---|---|
| 14.06.2025 | KTF Trail running race - Rockin Bear (JPN) | 48km | |||
| 7:34:28 h | Seo, Takashi | *Ibaraki Pref. | Overall: 352 | M: 308 | Cat M50: 41 |
| 27.04.2025 | Ishioka Trail Run (JPN) | 50km | |||
| 7:53:09 h | Seo, Takashi | Overall: 154 | M: 137 | Cat M50: 29 | |
| 2024 | 2 Events, 112 km (More) | ||||
| 26.05.2024 | OSJ Okukuji Trail 60k (JPN) | 62km | |||
| 13:51:45 h | Seo, Takashi | *Ibaraki Pref. | Overall: 251 | M: 235 | Cat M50: 42 |
| 28.04.2024 | Ishioka Trail Run (JPN) | 50km | |||
| 8:27:53 h | Seo, Takashi | Overall: 151 | M: 138 | Cat M50: 30 | |
| 2019 | 2 Events, 97 km (More) | ||||
| 25.08.2019 | Tsukuba Renjyo 48 Km Road & Trail Run (JPN) | 48km | |||
| 5:41:20 h | Seo, Takashi | Overall: 23 | M: 23 | Cat M45: 6 | |
| 28.04.2019 | Ishioka Trail Run (JPN) | 49km | |||
| 5:21:49 h | Seo, Takashi | *Moriya, Ibaraki Pref. | Overall: 30 | M: 27 | Cat M45: 4 |
| 2018 | 2 Events, 148 km (More) | ||||
| 26.08.2018 | Tsukuba Renjyo 70 Km Road & Trail Run (JPN) | 70km | |||
| 12:36:42 h | Seo, Takashi | *Moriya, Ibaraki Pref. | Overall: 61 | M: 56 | Cat M45: 8 |
| 03.06.2018 | Ultramarathon Okumusashi (JPN) | 78km | |||
| 8:41:25 h | Seo, Takashi | *Ibaraki Pref. | Overall: 275 | M: 243 | Cat M45: 52 |
| 2017 | 5 Events, 284.5 km (More) | ||||
| 30.09.-01.10.2017 | Coedo Kawagoe Running Fest 24-hours run (JPN) | 24h | |||
| 65.100 km | Seo, Takashi | Overall: 44 | M: 39 | Cat M40: 9 | |
| 10.09.2017 | OSJ Adatara Trail 50K (JPN) | 50km | |||
| 12:53:46 h | Seo, Takashi | *Ibaraki Pref. | Overall: 94 | M: 84 | Cat M40: 17 |
| 03.09.2017 | Trainic world Ogose-Tokigawa Trail Run 50km (JPN) | 49.6km | |||
| 7:49:15 h | Seo, Takashi | *Ibaraki Pref. | Overall: 83 | M: 77 | Cat M40: 17 |
| 27.08.2017 | Tsukuba Renjyo 70 Km Road & Trail Run (JPN) | 70km | |||
| 9:43:30 h | Seo, Takashi | *Moriya | Overall: 37 | M: 34 | Cat M40: 5 |
| 09.07.2017 | Trainic world Chichibu Trail Run 50km (JPN) | 49.8km | |||
| 10:47:07 h | Seo, Takashi | Overall: 213 | M: 198 | Cat M40: 36 | |
| 2016 | 7 Events, 526.474 km (More) | ||||
| 28.08.2016 | Tsukuba Renjyo 70 Km Road & Trail Run (JPN) | 70km | |||
| 8:57:13 h | Seo, Takashi | *Moriya | Overall: 57 | M: 54 | Cat M40: 10 |
| 03.07.2016 | 8-Hour Endurance Race Tokorozawa - 3 tai (JPN) | 8h | |||
| 61.674 km | Seo, Takashi | *Ibaraki Ken | Overall: 44 | M: 33 | Cat M40: 9 |
| 05.06.2016 | Ultramarathon Okumusashi (JPN) | 78km | |||
| 7:31:43 h | Seo, Takashi | *Ibaraki Pref. | Overall: 149 | M: 141 | Cat M40: 31 |
| 22.05.2016 | Yatsugatake Nobeyama 100 km (JPN) | 100km | |||
| 10:53:02 h | Seo, Takashi | *Ibaraki Pref. | Overall: 158 | M: 148 | Cat M40: 30 |
| 08.05.2016 | Trainic world Chichibu Trail Run 50km (JPN) | 49.8km | |||
| 7:04:34 h | Seo, Takashi | Overall: 21 | M: 20 | Cat M40: 4 | |
| 29.04.2016 | Ishioka Trail Run (JPN) | 49km | |||
| 5:19:53 h | Seo, Takashi | *Moriya | Overall: 25 | M: 25 | Cat M40: 4 |
| 24.04.2016 | Fuji 5 Lakes 118 km Challenge (JPN) | 118km | |||
| 12:19:14 h | Seo, Takashi | Overall: 103 | M: 93 | Cat M40: 22 | |
| 2015 | 4 Events, 303.874 km (More) | ||||
| 06.09.2015 | Trainic world Ogose-Tokigawa Trail Run 50km (JPN) | 49.6km | |||
| 7:07:36 h | Seo, Takashi | *Ibaraki Pref. | Overall: 40 | M: 39 | Cat M40: 17 |
| 12.07.2015 | 8-Hour Endurance Race Tokorozawa - 3 tai (JPN) | 8h | |||
| 59.274 km | Seo, Takashi | *Ibaraki Ken | Overall: 49 | M: 34 | Cat M40: 5 |
| 22.06.2015 | Ultramarathon Okumusashi (JPN) | 77km | |||
| 8:49:47 h | Seo, Takashi | *Ibaraki Pref. | Overall: 466 | M: 412 | Cat M40: 79 |
| 19.04.2015 | Fuji 5 Lakes 118 km Challenge (JPN) | 118km | |||
| 14:55:18 h | Seo, Takashi | Overall: 617 | M: 555 | Cat M40: 126 | |
| 2014 | 5 Events, 479.9 km (More) | ||||
| 07.12.2014 | Coedo Kawagoe 6 Hours Run (JPN) | 6h | |||
| 60.900 km | Seo, Takashi | Overall: 8 | M: 8 | Cat M40: 4 | |
| 12.10.2014 | Echigo Kubikino 100km Ultramarathon (JPN) | 100km | |||
| 13:25:11 h | Seo, Takashi | *Ibaraki Pref. | Overall: 1260 | M: 1062 | Cat M40: 131 |
| 14.-15.09.2014 | Karisakatoge beyond Chichibu Run (JPN) | 142km | |||
| 23:04:30 h | Seo, Takashi | *Ibaraki Pref. | Overall: 120 | M: 108 | Cat M40: 24 |
| 27.07.2014 | Ultramarathon Okumusashi (JPN) | 77km | |||
| 8:43:00 h | Seo, Takashi | *Ibaraki Pref. | Overall: 174 | M: 152 | Cat M40: 28 |
| 18.05.2014 | Yatsugatake Nobeyama 100 km (JPN) | 100km | |||
| 12:04:18 h | Seo, Takashi | *Ibaraki Pref. | Overall: 350 | M: 329 | Cat M40: 79 |
| 2013 | 7 Events, 871.868 km (More) | ||||
| 07.-08.09.2013 | OSJ Yatsugatake Super Trail 100 miles race (JPN) | 100mi | |||
| 32:21:42 h | Seo, Takashi | *Ibaraki Pref. | Overall: 139 | M: 133 | Cat M40: 28 |
| 31.08.2013 | Utsukushigahara 70 Km Trail Run (JPN) | 70km | |||
| 13:55:03 h | Seo, Takashi | *Ibaraki Pref. | Overall: 215 | M: 199 | Cat M40: 27 |
| 11.08.2013 | North Okhotsk 100 Km Marathon (JPN) | 100km | |||
| 12:23:50 h | Seo, Takashi | *Ibaraki Pref. | Overall: 154 | M: 142 | Cat M40: 30 |
| 28.07.2013 | Ultramarathon Okumusashi (JPN) | 77km | |||
| 7:53:32 h | Seo, Takashi | Overall: 176 | M: 158 | Cat M40: 36 | |
| 01.06.2013 | Tokyo Shibamata 100 km (JPN) | 100km | |||
| 11:56:09 h | Seo, Takashi | *Ibaraki Pref. | Overall: 466 | M: 429 | Cat M40: 73 |
| 26.-28.04.2013 | Ultra-Trail Mount Fuji (UTMF) (JPN) | 100mi | |||
| 40:45:03 h | Seo, Takashi | *Ibaraki Pref. | Overall: 396 | M: 352 | Cat M40: 85 |
| 02.-03.03.2013 | Little Edo Oedo 200k (JPN) | 203km | |||
| 35:52:15 h | Seo, Takashi | 〇〇倶楽部 | Overall: 157 | M: 136 | Cat M35: 24 |
| 2012 | 9 Events, 782.42 km (More) | ||||
| 06.10.2012 | Echigo Kubikino 100km Ultramarathon (JPN) | 100km | |||
| 12:50:41 h | Seo, Takashi | *Ibaraki Pref. | Overall: 709 | M: 613 | Cat M35: 64 |
| 30.09.2012 | Muraoka 100 km Ultra Marathon (JPN) | 100km | |||
| 13:24:59 h | Seo, Takashi | Overall: 187 | M: 172 | Cat M35: 28 | |
| 23.09.2012 | OSJ Adatara Trail 50K (JPN) | 50km | |||
| 9:42:16 h | Seo, Takashi | *Ibaraki Pref. | Overall: 41 | M: 39 | Cat M35: 5 |
| 01.-02.09.2012 | Hiratsuka 24 hour race (JPN) | 24h | |||
| 93.420 km | Seo, Takashi | Overall: 46 | M: 39 | Cat M35: 4 | |
| 05.08.2012 | Ultramarathon Okumusashi (JPN) | 77km | |||
| 9:19:49 h | Seo, Takashi | *Ibaraki Pref. | Overall: 387 | M: 322 | Cat M35: 52 |
| 15.07.2012 | OSJ Ontake 100km Ultra Trail (JPN) | 100km | |||
| 13:47:48 h | Seo, Takashi | *Ibaraki Pref. | Overall: 277 | M: 259 | Cat M35: 60 |
| 03.06.2012 | OSJ Okukuji Trail 50k (JPN) | 50km | |||
| 11:31:14 h | Seo, Takashi | *Ibaraki Pref. | Overall: 166 | M: 156 | Cat M35: 31 |
| 20.05.2012 | Yatsugatake Nobeyama 100 km (JPN) | 100km | |||
| 13:25:24 h | Seo, Takashi | Overall: 666 | M: 612 | Cat M35: 80 | |
| 22.04.2012 | Fuji 5 Lakes 112 km Challenge (JPN) | 112km | |||
| 14:29:32 h | Seo, Takashi | Overall: 479 | M: 435 | Cat M35: 74 | |
| 2011 | 1 Event, 100 km (More) | ||||
| 25.09.2011 | Jonaizaka 100 Km Ultra Marathon (JPN) | 100km | |||
| 16:42:00 h | Seo, Takashi | Overall: 65 | M: 56 | 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 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | |
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| 100km | 11:56:09 |
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11:56:09
(4805/1686) |
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Comparison table
Comparison of performances in races with multiple participations
| 2025 | 2024 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ultramarathon Okumusashi | 6 | 8:41:25 | 7:31:43 | 8:49:47 | 8:43:00 | 7:53:32 | 9:19:49 | |||||
| Ishioka Trail Run | 4 | 7:53:09 | 8:27:53 | 5:21:49 | 5:19:53 | |||||||
| Tsukuba Renjyo 70 Km Road & Trail Run | 3 | 12:36:42 | 9:43:30 | 8:57:13 | ||||||||
| Yatsugatake Nobeyama 100 km | 3 | 10:53:02 | 12:04:18 | 13:25:24 | ||||||||
| Fuji 5 Lakes 112 km Challenge | 3 | 12:19:14 | 14:55:18 | 14:29:32 | ||||||||
| 8-Hour Endurance Race Tokorozawa - 3 tai | 2 | 61.674 | 59.274 | |||||||||
| Trainic world Chichibu Trail Run 50km | 2 | 10:47:07 | 7:04:34 | |||||||||
| Echigo Kubikino 100km Ultramarathon | 2 | 13:25:11 | 12:50:41 | |||||||||
| Trainic world Ogose-Tokigawa Trail Run 50km | 2 | 7:49:15 | 7:07:36 | |||||||||
| OSJ Adatara Trail 50K | 2 | 12:53:46 | 9:42:16 | |||||||||
| OSJ Okukuji Trail 50k | 2 | 13:51:45 | 11:31:14 |