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| Name: | Kurai, Katsuyuki | 倉井克幸 |
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| Club: | 東京陸協 | ||
| Residence: | Tokyo | ||
| Year of birth: | 1982 | (Cat. german: M40) | |
| Date of birth: | 04.11.1982 | (Cat. internat.: M40) | |
| Nationality: | JPN  |
Japan | |
| RunnerID: | 92256 | ||
63 search results (58 Events, 20315.393 km). (More)
| 2025 | 3 Events, 264 km (More) | ||||
|---|---|---|---|---|---|
| 21.-22.06.2025 | Masuda 24 Hours Ultra Truck Race (JPN) | 24h | |||
| 102.000 km | Kurai, Katsuyuki | Overall: 26 | M: 22 | Cat M40: 7 | |
| 20.04.2025 | Okukumano 100 Km Ultramarathon (JPN) | 100km | |||
| 10:38:32 h | Kurai, Katsuyuki | *Shimane Pref. | Overall: 41 | M: 35 | Cat M40: 9 |
| 12.04.2025 | Okuizumo Ultra Orochi 60km Tooashi (JPN) | 62km | |||
| 6:21:07 h | Kurai, Katsuyuki | Overall: 22 | M: 21 | Cat M40: 5 | |
| 2024 | 2 Events, 500 km (More) | ||||
| 15.-18.11.2024 | Okinawa Hontō survival run (JPN) | 400km | |||
| 2d 23:45:09 h | Kurai, Katsuyuki | Overall: 15 | M: 12 | Cat M40: 4 | |
| 21.04.2024 | Okukumano 100 Km Ultramarathon (JPN) | 100km | |||
| 11:47:15 h | Kurai, Katsuyuki | *Shimane Pref. | Overall: 64 | M: 51 | Cat M40: 9 |
| 2023 | 5 Events, 3800 km (More) | ||||
| 24.-27.11.2023 | Okinawa Hontō survival run (JPN) | 400km | |||
| 2d 11:50:10 h | Kurai, Katsuyuki | Overall: 4 | M: 4 | Cat M40: 3 | |
| 01.05.-17.10.2023 | Across Honshu Lengthwise Foot Race (JPN) | 1550km | |||
| 12d 11:22:47 h | Kurai, Katsuyuki | Overall: 1 | M: 1 | Cat M40: 1 | |
| 22.04.-15.05.2023 | Across Honshu Lengthwise Foot Race - Special (JPN) | 1550km | |||
| 21d 01:28:00 h | Kurai, Katsuyuki | Overall: 10 | M: 10 | Cat M40: 2 | |
| 23.04.2023 | Okukumano 100 Km Ultramarathon (JPN) | 100km | |||
| 10:33:11 h | Kurai, Katsuyuki | *Tokyo | Overall: 39 | M: 34 | Cat M40: 3 |
| 08.-09.01.2023 | Japan Trophy 200 (JPN) | 200km | |||
| 23:41:40 h | Kurai, Katsuyuki | Overall: 10 | M: 9 | Cat M40: 6 | |
| 2022 | 4 Events, 4257.302 km (More) | ||||
| 18.-21.11.2022 | Okinawa Hontō survival run (JPN) | 400km | |||
| 2d 11:05:52 h | Kurai, Katsuyuki | Overall: 1 | M: 1 | Cat M40: 1 | |
| 17.09.-26.10.2022 | Across Honshu Lengthwise Foot Race (JPN) | 3100km | |||
| 29d 19:08:00 h | Kurai, Katsuyuki | Overall: 1 | M: 1 | Cat M35: 1 | |
| 15.-19.10.2022 | Backyard Ultra World Team Championships - Japan (JPN) | 86h | |||
| 449.302 km | Kurai, Katsuyuki | Overall: 4 | M: 4 | Cat M35: 1 | |
| 20.-25.09.2022 | Bakaroad 308km (JPN) | 308km | |||
| 46:56:00 h | Kurai, Katsuyuki | Overall: 1 | M: 1 | Cat M35: 1 | |
| 2021 | 3 Events, 2281.77 km (More) | ||||
| 20.-22.11.2021 | Last Samurai Standing Backyard Ultra - Gunma (JPN) | 45h | |||
| 301.770 km | Kurai, Katsuyuki | Overall: 2 | M: 1 | Cat M35: 1 | |
| 23.04.-30.10.2021 | Across Honshu R7 Foot Race (JPN) | 430km | |||
| 2d 20:51:00 h | Kurai, Katsuyuki | Overall: 1 | M: 1 | Cat M35: 1 | |
| 24.04.-08.05.2021 | Across Honshu Lengthwise Foot Race (JPN) | 1550km | |||
| 16d 05:54:25 h | Kurai, Katsuyuki | Overall: 3 | M: 3 | Cat M35: 1 | |
| 2020 | 1 Event, 521 km (More) | ||||
| 18.-25.07.2020 | Across Honshu R8 Foot Race (JPN) | 521km | |||
| 4d 03:57:00 h | Kurai, Katsuyuki | Overall: 2 | M: 2 | Cat M35: 1 | |
| 2019 | 2 Events, 614 km (More) | ||||
| 22.09.2019 | Akita Nairiku 100km Marathon (JPN) | 100km | |||
| 9:22:24 h | Kurai, Katsuyuki | *Tokyo, Tokyo Pref. | Overall: 41 | M: 39 | Cat M35: 9 |
| 30.04.-05.05.2019 | River Road Foot Race 514 Km (JPN) | 514km | |||
| 5d 07:44:06 h | Kurai, Katsuyuki | Overall: 64 | M: 58 | Cat M35: 7 | |
| 2018 | 5 Events, 2650.6 km (More) | ||||
| 23.-26.11.2018 | Okinawa Hontō survival run (JPN) | 400km | |||
| 2d 07:57:45 h | Kurai, Katsuyuki | Overall: 2 | M: 2 | Cat M35: 2 | |
| 23.09.2018 | Akita Nairiku 100km Marathon (JPN) | 100km | |||
| 11:40:13 h | Kurai, Katsuyuki | *Tokyo, Tokyo Pref. | Overall: 168 | M: 146 | Cat M35: 19 |
| 04.-05.08.2018 | 24-hour relay & solo marathon Kobe (JPN) | 24h | |||
| 115.600 km | Kurai, Katsuyuki | Overall: 63 | M: 52 | Cat M35: 7 | |
| 20.05.-16.06.2018 | Across Honshu Lengthwise Foot Race (JPN) | 1521km | |||
| 19d 10:08:00 h | Kurai, Katsuyuki | Overall: 1 | M: 1 | Cat M35: 1 | |
| 30.04.-05.05.2018 | River Road Foot Race 514 Km (JPN) | 514km | |||
| 3d 15:35:54 h | Kurai, Katsuyuki | Overall: 3 | M: 3 | Cat M35: 1 | |
| 2017 | 6 Events, 1514.412 km (More) | ||||
| 23.-26.11.2017 | Okinawa Hontō survival run (JPN) | 400km | |||
| 2d 11:55:42 h | Kurai, Katsuyuki | Overall: 4 | M: 4 | Cat M35: 3 | |
| 11.-12.11.2017 | Jingu Gaien 24 Hour Challenge (JPN) | 24h | |||
| 113.912 km | Kurai, Katsuyuki | Overall: 127 | M: 99 | Cat M35: 12 | |
| 05.-06.08.2017 | 24-hour relay & solo marathon Kobe (JPN) | 24h | |||
| 110.500 km | Kurai, Katsuyuki | Overall: 51 | M: 43 | Cat M23: 9 | |
| 30.04.-05.05.2017 | River Road Foot Race 520 Km (JPN) | 520km | |||
| 3d 17:55:41 h | Kurai, Katsuyuki | Overall: 4 | M: 4 | Cat M23: 1 | |
| 23.04.2017 | Okukumano 100 Km Ultramarathon (JPN) | 100km | |||
| 8:36:00 h | Kurai, Katsuyuki | *Tokyo | Overall: 6 | M: 6 | Cat M23: 1 |
| 20.03.2017 | Okinawa Hontō 3 days stage race (TOFR) - Stage 3 (JPN) | 68km | |||
| 9:31:23 h | Kurai, Katsuyuki | Overall: 17 | M: 16 | Cat M23: 4 | |
| 18.-20.03.2017 | Okinawa Hontō 3 days stage race (TOFR) (JPN) | 270km/3stages | |||
| 32:04:20 h | Kurai, Katsuyuki | Overall: 4 | M: 4 | Cat M23: 2 | |
| 19.03.2017 | Okinawa Hontō 3 days stage race (TOFR) - Stage 2 (JPN) | 98km | |||
| 11:41:59 h | Kurai, Katsuyuki | Overall: 4 | M: 4 | Cat M23: 2 | |
| 18.03.2017 | Okinawa Hontō 3 days stage race (TOFR) - Stage 1 (JPN) | 104km | |||
| 10:51:00 h | Kurai, Katsuyuki | Overall: 3 | M: 3 | Cat M23: 2 | |
| 2016 | 6 Events, 1058.024 km (More) | ||||
| 17.-18.12.2016 | Jingu Gaien 24 Hour Challenge (JPN) | 24h | |||
| 152.324 km | Kurai, Katsuyuki | Overall: 89 | M: 68 | Cat M23: 9 | |
| 18.-21.11.2016 | Okinawa Hontō survival run (JPN) | 400km | |||
| 2d 23:38:40 h | Kurai, Katsuyuki | Overall: 7 | M: 6 | Cat M23: 1 | |
| 25.09.2016 | Akita Nairiku 100km Marathon (JPN) | 100km | |||
| 10:15:25 h | Kurai, Katsuyuki | *Tokyo | Overall: 67 | M: 59 | Cat M23: 12 |
| 06.-07.08.2016 | 24-hour relay & solo marathon Kobe (JPN) | 24h | |||
| 205.700 km | Kurai, Katsuyuki | Overall: 1 | M: 1 | Cat M23: 1 | |
| 24.04.2016 | Okukumano 100 Km Ultramarathon (JPN) | 100km | |||
| 8:50:16 h | Kurai, Katsuyuki | *Tokyo | Overall: 9 | M: 8 | Cat M23: 3 |
| 17.01.2016 | Miyako 100 Km Ultramarathon (JPN) | 100km | |||
| 10:19:03 h | Kurai, Katsuyuki | *Tokyo | Overall: 36 | M: 32 | Cat M23: 8 |
| 2015 | 8 Events, 1482.741 km (More) | ||||
| 19.-20.12.2015 | Jingu Gaien 24 Hour Challenge (JPN) | 24h | |||
| 212.341 km | Kurai, Katsuyuki | Overall: 15 | M: 15 | Cat M23: 4 | |
| 20.-23.11.2015 | Okinawa Hontō survival run (JPN) | 400km | |||
| 2d 22:51:12 h | Kurai, Katsuyuki | Overall: 7 | M: 6 | Cat M23: 1 | |
| 18.10.2015 | Noto Peninsula 100 km Ultra Marathon (JPN) | 100km | |||
| 10:08:55 h | Kurai, Katsuyuki | *Kita Ward, Tokyo Pref. | Overall: 22 | M: 21 | Cat M23: 3 |
| 27.09.2015 | Akita Nairiku 100km Marathon (JPN) | 100km | |||
| 8:49:46 h | Kurai, Katsuyuki | *Tokyo | Overall: 22 | M: 22 | Cat M23: 7 |
| 01.-02.08.2015 | 24-hour relay & solo marathon Kobe (JPN) | 24h | |||
| 190.400 km | Kurai, Katsuyuki | Overall: 2 | M: 2 | Cat M23: 1 | |
| 26.04.2015 | Okukumano 100 Km Ultramarathon (JPN) | 100km | |||
| 8:24:10 h | Kurai, Katsuyuki | *Tokyo | Overall: 4 | M: 4 | Cat M23: 2 |
| 07.-09.02.2015 | Okinawa Hontō 3 days stage race (TOFR) (JPN) | 280km/3stages | |||
| 28:28:45 h | Kurai, Katsuyuki | Overall: 2 | M: 2 | Cat M23: 1 | |
| 11.01.2015 | Miyako 100 Km Ultramarathon (JPN) | 100km | |||
| 8:14:03 h | Kurai, Katsuyuki | *Tokyo | Overall: 6 | M: 6 | Cat M23: 2 |
| 2014 | 6 Events, 671.544 km (More) | ||||
| 08.-09.11.2014 | Jingu Gaien 24 Hour Challenge - 6h Split (JPN) | 6h | |||
| 70.202 km | Kurai, Katsuyuki | 東京陸協 | Overall: 6 | M: 6 | Cat M23: 3 |
| 08.-09.11.2014 | Jingu Gaien 24 Hour Challenge -12h Split (JPN) | 12h | |||
| 129.807 km | Kurai, Katsuyuki | 東京陸協 | Overall: 5 | M: 5 | Cat M23: 3 |
| 08.-09.11.2014 | Jingu Gaien 24 Hour Challenge (JPN) | 24h | |||
| 169.544 km | Kurai, Katsuyuki | 東京陸協 | Overall: 44 | M: 40 | Cat M23: 7 |
| 05.10.2014 | Noto Peninsula 100 km Ultra Marathon (JPN) | 102km | |||
| 8:45:24 h | Kurai, Katsuyuki | *Kita Ward, Tokyo Pref. | Overall: 3 | M: 3 | Cat M23: 1 |
| 28.09.2014 | Akita Nairiku 100km Marathon (JPN) | 100km | |||
| 8:16:35 h | Kurai, Katsuyuki | *Tokyo | Overall: 13 | M: 13 | Cat M23: 7 |
| 27.04.2014 | Okukumano 100 Km Ultramarathon (JPN) | 100km | |||
| 8:01:30 h | Kurai, Katsuyuki | *Tokyo | Overall: 1 | M: 1 | Cat M23: 1 |
| 29.03.2014 | Izu Oshima Ultra 100 Km (JPN) | 100km | |||
| 8:18:42 h | Kurai, Katsuyuki | Overall: 2 | M: 2 | Cat M23: 2 | |
| 12.01.2014 | Miyako 100 Km Ultramarathon (JPN) | 100km | |||
| 8:03:54 h | Kurai, Katsuyuki | *Tokyo | Overall: 4 | M: 4 | Cat M23: 4 |
| 2013 | 3 Events, 300 km (More) | ||||
| 20.10.2013 | Noto Peninsula 100 km Ultra Marathon (JPN) | 100km | |||
| 8:39:06 h | Kurai, Katsuyuki | *Kita Ward, Tokyo Pref. | Overall: 7 | M: 7 | Cat M23: 2 |
| 22.09.2013 | Akita Nairiku 100km Marathon (JPN) | 100km | |||
| 8:43:42 h | Kurai, Katsuyuki | *Tokyo | Overall: 23 | M: 23 | Cat M23: 8 |
| 13.01.2013 | Miyako 100 Km Ultramarathon (JPN) | 100km | |||
| 8:48:58 h | Kurai, Katsuyuki | *Tokyo | Overall: 7 | M: 6 | Cat M23: 3 |
| 2012 | 1 Event, 100 km (More) | ||||
| 23.09.2012 | Akita Nairiku 100km Marathon (JPN) | 100km | |||
| 9:32:37 h | Kurai, Katsuyuki | *Tokyo | Overall: 55 | M: 52 | Cat M23: 10 |
| 2011 | 1 Event, 100 km (More) | ||||
| 25.09.2011 | Akita Nairiku 100km Marathon (JPN) | 100km | |||
| 8:56:45 h | Kurai, Katsuyuki | *Tokyo | Overall: 21 | M: 21 | Cat M23: 8 |
| 2009 | 1 Event, 100 km (More) | ||||
| 27.09.2009 | Akita Nairiku 100km Marathon (JPN) | 100km | |||
| 9:05:32 h | Kurai, Katsuyuki | *Tokyo | Overall: 33 | M: 33 | Cat M23: 5 |
| 2008 | 1 Event, 100 km (More) | ||||
| 28.09.2008 | Akita Nairiku 100km Marathon (JPN) | 100km | |||
| 9:18:12 h | Kurai, Katsuyuki | *Saitama | Overall: 46 | M: 43 | Cat M23: 15 |
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 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2009 | 2008 | |
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| 6h | 70.202 |
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70.202
(258/10) |
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| 12h | 129.807 |
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129.807
(59/7) |
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| 24h | 212.341 |
102.000
(3020/160) |
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113.912
(2478/109) |
152.324
(1187/76) |
212.341
(172/17) |
169.544
(706/47) |
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Comparison table
Comparison of performances in races with multiple participations
| 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2009 | 2008 | ||
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| Akita Nairiku 100km Marathon | 10 | 9:22:24 | 11:40:13 | 10:15:25 | 8:49:46 | 8:16:35 | 8:43:42 | 9:32:37 | 8:56:45 | 9:05:32 | 9:18:12 | |||||||
| Okinawa Hontō survival run | 7 | 71:45:09 | 59:50:10 | 59:05:52 | 55:57:45 | 59:55:42 | 71:38:40 | 70:51:12 | ||||||||||
| Okukumano 100 Km Ultramarathon | 7 | 10:38:32 | 11:47:15 | 10:33:11 | 8:36:00 | 8:50:16 | 8:24:10 | 8:01:30 | ||||||||||
| 24-hour relay & solo marathon Kobe | 4 | 115.600 | 110.500 | 205.700 | 190.400 | |||||||||||||
| Miyako 100 Km Ultramarathon | 4 | 10:19:03 | 8:14:03 | 8:03:54 | 8:48:58 | |||||||||||||
| Jingu Gaien 24 Hour Challenge | 4 | 113.912 | 152.324 | 212.341 | 169.544 | |||||||||||||
| River Road Foot Race 520 Km | 3 | 127:44:06 | 87:35:54 | 89:55:41 | ||||||||||||||
| Noto Peninsula 100 km Ultra Marathon | 3 | 10:08:55 | 8:45:24 | 8:39:06 | ||||||||||||||
| Across Honshu Lengthwise Foot Race | 3 | 299:22:47 | 389:54:25 | 466:08:00 | ||||||||||||||
| Okinawa Hontō 3 days stage race (TOFR) | 2 | 32:04:20 | 28:28:45 |