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| Name: | Ishii, Kazuaki | 石井一光 |
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| Club: | 小川司法ラン部 | ||
| Residence: | Tokyo Pref. | ||
| Year of birth: | 1970 | (Cat. german: M55) | |
| Date of birth: | 20.04.1970 | (Cat. internat.: M55) | |
| Nationality: | JPN  |
Japan | |
| RunnerID: | 215054 | ||
47 search results (47 Events, 4119.8 km). (More)
| 2025 | 2 Events, 267 km (More) | ||||
|---|---|---|---|---|---|
| 15.-16.11.2025 | FunTrails100K Round (JPN) | 100km | |||
| 31:34:58 h | Ishii, Kazuaki | いい家の犬になりたい | Overall: 378 | M: 320 | Cat M55: 42 |
| 25.-26.04.2025 | Ultra-Trail Mt. Fuji (UTMF) (JPN) | 167km | |||
| 44:16:07 h | Ishii, Kazuaki | いい家の犬になりたい | Overall: 1424 | M: 1269 | Cat M55: 120 |
| 2024 | 4 Events, 330.6 km (More) | ||||
| 22.12.2024 | Coast to Coast Boso hanto (JPN) | 70km | |||
| 12:22:53 h | Ishii, Kazuaki | Overall: 391 | M: 353 | Cat M50: 55 | |
| 16.-17.11.2024 | FunTrails100K Round (JPN) | 100km | |||
| 31:10:44 h | Ishii, Kazuaki | *Tokyo | Overall: 370 | M: 311 | Cat M50: 51 |
| 06.10.2024 | Trainic world Ogose-Tokigawa Trail Run 50km (JPN) | 51.4km | |||
| 10:50:05 h | Ishii, Kazuaki | いい家の犬になりたい | Overall: 220 | M: 186 | Cat M50: 45 |
| 18.-19.05.2024 | Trainic World 100 Km in Sai-No-Kuni (JPN) | 109.2km | |||
| 29:24:03 h | Ishii, Kazuaki | Overall: 223 | M: 170 | Cat M50: 38 | |
| 2023 | 1 Event, 109.2 km (More) | ||||
| 20.-21.05.2023 | Trainic World 100 Km in Sai-No-Kuni (JPN) | 109.2km | |||
| 27:56:58 h | Ishii, Kazuaki | いい家の犬になりたい | Overall: 209 | M: 171 | Cat M50: 41 |
| 2022 | 6 Events, 495.6 km (More) | ||||
| 11.12.2022 | Izu Trail Journey (JPN) | 70km | |||
| 12:14:08 h | Ishii, Kazuaki | いい家の犬になりたい | Overall: 860 | M: 748 | Cat M50: 131 |
| 20.-21.11.2022 | FunTrails100K Round (JPN) | 106km | |||
| 29:47:57 h | Ishii, Kazuaki | いい家の犬になりたい | Overall: 448 | M: 400 | Cat M50: 89 |
| 30.10.2022 | Trainic world Ogose-Tokigawa Trail Run 50km (JPN) | 49.6km | |||
| 9:25:07 h | Ishii, Kazuaki | いい家の犬になりたい | Overall: 136 | M: 122 | Cat M50: 26 |
| 02.10.2022 | Trainic world Soto-Chichibu Trail Run 50km (JPN) | 52km | |||
| 10:27:28 h | Ishii, Kazuaki | Aniyans | Overall: 159 | M: 140 | Cat M50: 26 |
| 26.06.2022 | FunTrails Round Minano (JPN) | 51km | |||
| 10:38:44 h | Ishii, Kazuaki | *Kanagawa Pref. | Overall: 206 | M: 177 | Cat M50: 32 |
| 22.-24.04.2022 | Ultra-Trail Mt. Fuji (UTMF) (JPN) | 167km | |||
| 41:30:05 h | Ishii, Kazuaki | *Tokyo | Overall: 1326 | M: 1154 | Cat M50: 234 |
| 2021 | 2 Events, 175.1 km (More) | ||||
| 12.12.2021 | Izu Trail Journey (JPN) | 69.1km | |||
| 12:51:38 h | Ishii, Kazuaki | 小川司法書士事務所 | Overall: 1034 | M: 889 | Cat M50: 163 |
| 20.-21.11.2021 | FunTrails100K Round (JPN) | 106km | |||
| 29:53:46 h | Ishii, Kazuaki | *Tokyo | Overall: 461 | M: 401 | Cat M50: 70 |
| 2019 | 2 Events, 221 km (More) | ||||
| 11.-12.05.2019 | Aso Round Trail (JPN) | 121km | |||
| 30:48:53 h | Ishii, Kazuaki | *Tokyo Pref. | Overall: 387 | M: 329 | Cat M45: 76 |
| 21.04.2019 | Fuji 5 Lakes 100 km Challenge (JPN) | 100km | |||
| 13:30:29 h | Ishii, Kazuaki | Overall: 1171 | M: 998 | Cat M45: 130 | |
| 2018 | 8 Events, 663.7 km (More) | ||||
| 16.12.2018 | Coast to Coast 70k Trail Run (JPN) | 68km | |||
| 10:55:03 h | Ishii, Kazuaki | Overall: 360 | M: 329 | Cat M45: 65 | |
| 17.-18.11.2018 | FunTrails100K Round (JPN) | 106km | |||
| 29:37:07 h | Ishii, Kazuaki | 小川司法ラン部 | Overall: 365 | M: 331 | Cat M45: 71 |
| 20.10.2018 | Shigakogen Extreme Trail (JPN) | 54km | |||
| 13:03:29 h | Ishii, Kazuaki | 小川司法書士ラン部 | Overall: 133 | M: 122 | Cat M45: 8 |
| 22.07.2018 | Mt. Taisetsu Trail Journey (JPN) | 80km | |||
| 11:01:06 h | Ishii, Kazuaki | Overall: 145 | M: 133 | Cat M45: 31 | |
| 17.06.2018 | Yuzawa Sky Extreme Trail (JPN) | 55km | |||
| 11:58:43 h | Ishii, Kazuaki | Overall: 40 | M: 39 | Cat M45: 8 | |
| 12.-13.05.2018 | Aso Round Trail (JPN) | 108.7km | |||
| 28:20:50 h | Ishii, Kazuaki | 小川司法書士事務所トレラン部 | Overall: 342 | M: 289 | Cat M45: 69 |
| 28.-29.04.2018 | Shizuoka to Yamanashi (STY) (JPN) | 92km | |||
| 19:37:25 h | Ishii, Kazuaki | 小川司法ラン部 | Overall: 515 | M: 424 | Cat M45: 84 |
| 22.04.2018 | Fuji 5 Lakes 100 km Challenge (JPN) | 100km | |||
| 13:42:48 h | Ishii, Kazuaki | 小川司法ラン部 | Overall: 1102 | M: 943 | Cat M45: 120 |
| 2017 | 2 Events, 168 km (More) | ||||
| 17.12.2017 | Coast to Coast 70k Trail Run (JPN) | 68km | |||
| 10:56:58 h | Ishii, Kazuaki | Overall: 284 | M: 254 | Cat M45: 40 | |
| 23.04.2017 | Fuji 5 Lakes 100 km Challenge (JPN) | 100km | |||
| 12:53:47 h | Ishii, Kazuaki | 小川司法ラン部 | Overall: 772 | M: 684 | Cat M45: 128 |
| 2016 | 6 Events, 463 km (More) | ||||
| 11.12.2016 | Izu Trail Journey (JPN) | 71.7km | |||
| 13:39:07 h | Ishii, Kazuaki | 小川司法ラン部 | Overall: 1118 | M: 976 | Cat M45: 196 |
| 19.-20.11.2016 | FunTrails100K Round (JPN) | 105km | |||
| 29:32:10 h | Ishii, Kazuaki | 小川司法ラン部 | Overall: 312 | M: 288 | Cat M45: 68 |
| 09.-10.10.2016 | Hasetsune Cup - Japan Mountain Endurance Race (JPN) | 71.5km | |||
| 22:30:31 h | Ishii, Kazuaki | 小川司法ラン部 | Overall: 1809 | M: 1609 | Cat M45: 381 |
| 16.-17.07.2016 | Nozawa Onsen 4100D Mountain Trail (JPN) | 65km | |||
| 17:52:53 h | Ishii, Kazuaki | *Tokyo | Overall: 388 | M: 328 | Cat M45: 67 |
| 08.05.2016 | Trainic world Chichibu Trail Run 50km (JPN) | 49.8km | |||
| 10:24:51 h | Ishii, Kazuaki | Overall: 272 | M: 251 | Cat M45: 51 | |
| 24.04.2016 | Fuji 5 Lakes 100 km Challenge (JPN) | 100km | |||
| 12:48:05 h | Ishii, Kazuaki | 小川司法ラン部 | Overall: 697 | M: 626 | Cat M45: 126 |
| 2015 | 4 Events, 279.6 km (More) | ||||
| 20.12.2015 | Coast to Coast Boso - Odan 60k (JPN) | 60km | |||
| 11:57:11 h | Ishii, Kazuaki | Overall: 238 | M: 207 | Cat M45: 37 | |
| 06.09.2015 | Trainic world Ogose-Tokigawa Trail Run 50km (JPN) | 49.6km | |||
| 10:40:07 h | Ishii, Kazuaki | 小川司法ラン部 | Overall: 330 | M: 299 | Cat M45: 44 |
| 30.08.2015 | Tsukuba Renjyo 70 Km Road & Trail Run (JPN) | 70km | |||
| 12:46:51 h | Ishii, Kazuaki | 小川司法ラン部 | Overall: 340 | M: 310 | Cat M45: 57 |
| 19.04.2015 | Fuji 5 Lakes 100 km Challenge (JPN) | 100km | |||
| 13:10:13 h | Ishii, Kazuaki | 小川司法書士 | Overall: 881 | M: 759 | Cat M40: 160 |
| 2014 | 3 Events, 275 km (More) | ||||
| 14.-15.09.2014 | Shinetsu Five Mountains Trail 110km (JPN) | 110km | |||
| 21:21:07 h | Ishii, Kazuaki | Overall: 423 | M: 351 | Cat M40: 94 | |
| 20.-21.07.2014 | Nozawa Onsen 4100D Mountain Trail (JPN) | 65km | |||
| 15:22:48 h | Ishii, Kazuaki | Overall: 414 | M: 365 | Cat M40: 68 | |
| 20.04.2014 | Fuji 5 Lakes 100 km Challenge (JPN) | 100km | |||
| 13:52:49 h | Ishii, Kazuaki | 小川司法書士 | Overall: 1296 | M: 1128 | Cat M40: 247 |
| 2013 | 2 Events, 200 km (More) | ||||
| 01.06.2013 | Tokyo Shibamata 100 km (JPN) | 100km | |||
| 13:56:14 h | Ishii, Kazuaki | *Tokyo | Overall: 1228 | M: 1120 | Cat M40: 160 |
| 21.04.2013 | Fuji 5 Lakes 100 km Challenge (JPN) | 100km | |||
| 13:58:29 h | Ishii, Kazuaki | 東京陸上競技協会 | Overall: 848 | M: 742 | Cat M40: 147 |
| 2012 | 3 Events, 300 km (More) | ||||
| 21.10.2012 | River Shimanto 100km (JPN) | 100km | |||
| 13:55:33 h | Ishii, Kazuaki | *Tokyo | Overall: 1042 | M: 899 | Cat M40: 99 |
| 24.06.2012 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 12:38:38 h | Ishii, Kazuaki | *Tokyo | Overall: 1879 | M: 1636 | Cat M40: 282 |
| 22.04.2012 | Fuji 5 Lakes 100 km Challenge (JPN) | 100km | |||
| 13:55:47 h | Ishii, Kazuaki | Overall: 1056 | M: 885 | Cat M40: 130 | |
| 2011 | 1 Event, 100 km (More) | ||||
| 30.04.2011 | Fuji 5 Lakes 100 km Challenge (JPN) | 100km | |||
| 13:58:11 h | Ishii, Kazuaki | Overall: 882 | M: 756 | Cat M40: 106 | |
| 2010 | 1 Event, 72 km (More) | ||||
| 25.04.2010 | Fuji 5 Lakes 72 km Challenge (JPN) | 72km | |||
| 10:37:09 h | Ishii, Kazuaki | Overall: 451 | M: 342 | Cat M40: 54 | |
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 | 2011 | 2010 | |
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| 100km | 12:38:38 |
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13:56:14
(8568/3728) |
12:38:38
(5784/2067) |
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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 | 2011 | 2010 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fuji 5 Lakes 100 km Challenge | 9 | 13:30:29 | 13:42:48 | 12:53:47 | 12:48:05 | 13:10:13 | 13:52:49 | 13:58:29 | 13:55:47 | 13:58:11 | ||||||
| FunTrails100K Round | 6 | 31:34:58 | 31:10:44 | 29:47:57 | 29:53:46 | 29:37:07 | 29:32:10 | |||||||||
| Coast to Coast Boso - Odan 60k | 3 | 10:55:03 | 10:56:58 | 11:57:11 | ||||||||||||
| Trainic world Ogose-Tokigawa Trail Run 50km | 3 | 10:50:05 | 9:25:07 | 10:40:07 | ||||||||||||
| Izu Trail Journey | 3 | 12:14:08 | 12:51:38 | 13:39:07 | ||||||||||||
| Nozawa Onsen 4100D Mountain Trail | 2 | 17:52:53 | 15:22:48 | |||||||||||||
| Aso Round Trail | 2 | 30:48:53 | 28:20:50 | |||||||||||||
| Trainic world Chichibu Trail Run 50km | 2 | 10:27:28 | 10:24:51 | |||||||||||||
| Trainic World 100 Km in Sai-No-Kuni | 2 | 29:24:03 | 27:56:58 | |||||||||||||
| Ultra-Trail Mt. Fuji (UTMF) | 2 | 44:16:07 | 41:30:05 |