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| Name: | Iwasaki, Masaaki | 岩崎正明 |
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| Club: | 海響アスリート | ||
| Residence: | Kitakyushu | ||
| Year of birth: | 1978 | (Cat. german: M45) | |
| Date of birth: | 15.12.1978 | (Cat. internat.: M45) | |
| Nationality: | JPN  |
Japan | |
| RunnerID: | 203287 | ||
43 search results (43 Events, 4309.634 km). (More)
| 2025 | 2 Events, 249 km (More) | ||||
|---|---|---|---|---|---|
| 15.-16.11.2025 | TransLantau 80 by UTMB (HKG) | 80km | |||
| 20:02:32 h | Iwasaki, Masaaki | Rbrgtrc | Overall: 289 | M: 240 | Cat M45: 34 |
| 10.-12.10.2025 | Lake Biwa 100 (JPN) | 169km | |||
| 42:00:35 h | Iwasaki, Masaaki | Overall: 101 | M: 83 | Cat M45: 23 | |
| 2024 | 3 Events, 376 km (More) | ||||
| 09.-10.11.2024 | TransLantau 100 by UTMB (HKG) | 100km | |||
| 23:07:21 h | Iwasaki, Masaaki | Kaikyoac | Overall: 119 | M: 96 | Cat M45: 20 |
| 26.-27.04.2024 | Ultra-Trail Mt. Fuji (UTMF) (JPN) | 167km | |||
| 36:26:37 h | Iwasaki, Masaaki | Rbrgtrc | Overall: 409 | M: 374 | Cat M45: 89 |
| 23.-24.03.2024 | Hiroshima Wangan Trail Run (JPN) | 109km | |||
| 21:09:16 h | Iwasaki, Masaaki | Overall: 75 | M: 68 | Cat M45: 12 | |
| 2023 | 7 Events, 777 km (More) | ||||
| 29.-30.12.2023 | Kyoto Great Round 130 km (JPN) | 130km | |||
| 26:54:07 h | Iwasaki, Masaaki | Overall: 26 | M: 23 | Cat M45: 5 | |
| 10.12.2023 | Izu Trail Journey (JPN) | 70km | |||
| 10:24:23 h | Iwasaki, Masaaki | Rbrgtrc | Overall: 354 | M: 316 | Cat M40: 71 |
| 15.10.2023 | River Shimanto 100km (JPN) | 100km | |||
| 11:49:11 h | Iwasaki, Masaaki | Overall: 373 | M: 330 | Cat M40: 40 | |
| 07.-08.10.2023 | TransJeju by UTMB 100 (KOR) | 100km | |||
| 16:17:34 h | Iwasaki, Masaaki | Overall: 140 | M: 115 | Cat M40: 17 | |
| 17.-18.09.2023 | Shinetsu Five Mountains Trail 110km (JPN) | 110km | |||
| 21:41:30 h | Iwasaki, Masaaki | 海響ｱｽﾘｰﾄ | Overall: 224 | M: 177 | Cat M40: 45 |
| 10.-11.06.2023 | Okushinano 100 (JPN) | 100km | |||
| 15:09:39 h | Iwasaki, Masaaki | 海響あc | Overall: 99 | M: 88 | Cat M40: 20 |
| 21.-23.04.2023 | Ultra-Trail Mt. Fuji (UTMF) (JPN) | 167km | |||
| 36:50:53 h | Iwasaki, Masaaki | 海響アスリート | Overall: 621 | M: 550 | Cat M40: 149 |
| 2022 | 8 Events, 835.5 km (More) | ||||
| 11.12.2022 | Izu Trail Journey (JPN) | 70km | |||
| 9:29:29 h | Iwasaki, Masaaki | 海響ac | Overall: 193 | M: 176 | Cat M40: 38 |
| 15.10.2022 | Iki 100 Km Ultra Marathon (JPN) | 100km | |||
| 11:00:16 h | Iwasaki, Masaaki | 海響アスリート | Overall: 34 | M: 32 | Cat M40: 8 |
| 09.-10.10.2022 | Hasetsune Cup - Japan Mountain Endurance Race (JPN) | 71.5km | |||
| 12:35:37 h | Iwasaki, Masaaki | 海響アスリート | Overall: 216 | M: 196 | Cat M40: 48 |
| 26.08.2022 | Ultra Trail Tour du Mont Blanc (UTMB) (FRA) | 170km | |||
| 38:51:42 h | Iwasaki, Masaaki | Kaikyo AC | Overall: 734 | M: 681 | Cat M40: 169 |
| 16.07.2022 | OSJ Ontake 100km Ultra Trail (JPN) | 100km | |||
| 11:51:27 h | Iwasaki, Masaaki | 海響ac | Overall: 33 | M: 32 | Cat M40: 8 |
| 05.06.2022 | Nagi Peaks Tough Trail Challenge (JPN) | 57km | |||
| 10:13:25 h | Iwasaki, Masaaki | *Fukuoka Pref. | Overall: 55 | M: 53 | Cat M40: 11 |
| 22.05.2022 | Yatsugatake Nobeyama 100 km (JPN) | 100km | |||
| 10:29:36 h | Iwasaki, Masaaki | Overall: 79 | M: 78 | Cat M40: 14 | |
| 22.-24.04.2022 | Ultra-Trail Mt. Fuji (UTMF) (JPN) | 167km | |||
| 33:30:46 h | Iwasaki, Masaaki | 海響アスリート | Overall: 485 | M: 432 | Cat M40: 118 |
| 2020 | 1 Event, 66 km (More) | ||||
| 13.12.2020 | Izu Trail Journey (JPN) | 66km | |||
| 8:35:36 h | Iwasaki, Masaaki | Overall: 135 | M: 121 | Cat M40: 31 | |
| 2019 | 4 Events, 417.134 km (More) | ||||
| 08.12.2019 | Izu Trail Journey (JPN) | 71.7km | |||
| 8:37:13 h | Iwasaki, Masaaki | Overall: 121 | M: 115 | Cat M40: 28 | |
| 28.-30.11.2019 | Oman by UTMB 130 Km (OMA) | 130km | |||
| 37:26:39 h | Iwasaki, Masaaki | Overall: 103 | M: 94 | Cat M40: 13 | |
| 14.-16.09.2019 | Shinetsu Five Mountains Trail 100 mile (JPN) | 100mi | |||
| 30:18:02 h | Iwasaki, Masaaki | *Fukuoka Pref. | Overall: 141 | M: 129 | Cat M40: 27 |
| 11.-12.05.2019 | Aso Round Trail Half (JPN) | 54.5km | |||
| 10:13:59 h | Iwasaki, Masaaki | *Fukuoka Pref. | Overall: 31 | M: 29 | Cat M40: 6 |
| 2018 | 3 Events, 281.5 km (More) | ||||
| 07.-08.10.2018 | Hasetsune Cup - Japan Mountain Endurance Race (JPN) | 71.5km | |||
| 16:13:54 h | Iwasaki, Masaaki | 海響アスリート | Overall: 483 | M: 428 | Cat M35: 79 |
| 16.-17.09.2018 | Shinetsu Five Mountains Trail 110km (JPN) | 110km | |||
| 19:40:31 h | Iwasaki, Masaaki | 海響゠シヨーテ | Overall: 144 | M: 124 | Cat M35: 34 |
| 24.06.2018 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 9:47:38 h | Iwasaki, Masaaki | Overall: 378 | M: 339 | Cat M35: 41 | |
| 2017 | 1 Event, 100 km (More) | ||||
| 11.06.2017 | Hida Takayama 100 km Ultramarathon (JPN) | 100km | |||
| 10:45:52 h | Iwasaki, Masaaki | 福岡陸協 | Overall: 241 | M: 228 | Cat M35: 34 |
| 2016 | 3 Events, 317.5 km (More) | ||||
| 18.-19.09.2016 | Shinetsu Five Mountains Trail 110km (JPN) | 110km | |||
| 14:36:49 h | Iwasaki, Masaaki | Overall: 68 | M: 65 | Cat M35: 17 | |
| 24.07.2016 | Kirishima Ebino-kougen Extreme Trail (JPN) | 67.5km | |||
| 10:15:18 h | Iwasaki, Masaaki | ブラテック | Overall: 72 | M: 67 | Cat M35: 13 |
| 03.-04.05.2016 | Yamaguchi 100 Hagi-O-Kan Maranic 140 km (JPN) | 140km | |||
| 19:53:34 h | Iwasaki, Masaaki | *Fukuoka Pref. | Overall: 29 | M: 28 | Cat M35: 4 |
| 2015 | 2 Events, 170 km (More) | ||||
| 06.06.2015 | Aso Caldera Super Marathon 100 km (JPN) | 100km | |||
| 11:57:00 h | Iwasaki, Masaaki | Overall: 418 | M: 384 | Cat M35: 42 | |
| 04.05.2015 | Yamaguchi 100 Hagi-O-Kan Maranic 70 km (JPN) | 70km | |||
| 6:54:02 h | Iwasaki, Masaaki | *Fukuoka Pref. | Overall: 13 | M: 12 | Cat M35: 3 |
| 2014 | 3 Events, 270 km (More) | ||||
| 14.09.2014 | Tango 100 km Ultramarathon (JPN) | 100km | |||
| 11:31:32 h | Iwasaki, Masaaki | *Fukuoka Pref. | Overall: 339 | M: 315 | Cat M35: 46 |
| 07.06.2014 | Aso Caldera Super Marathon 100 km (JPN) | 100km | |||
| 12:10:31 h | Iwasaki, Masaaki | Overall: 391 | M: 353 | Cat M35: 34 | |
| 04.05.2014 | Yamaguchi 100 Hagi-O-Kan Maranic 70 km (JPN) | 70km | |||
| 7:39:17 h | Iwasaki, Masaaki | *Fukuoka Pref. | Overall: 30 | M: 28 | Cat M35: 6 |
| 2013 | 1 Event, 70 km (More) | ||||
| 04.05.2013 | Yamaguchi 100 Hagi-O-Kan Maranic 70 km (JPN) | 70km | |||
| 7:36:51 h | Iwasaki, Masaaki | *Fukuoka Pref. | Overall: 23 | M: 22 | Cat M23: 7 |
| 2012 | 2 Events, 170 km (More) | ||||
| 21.10.2012 | River Shimanto 100km (JPN) | 100km | |||
| 10:48:35 h | Iwasaki, Masaaki | *Fukuoka Pref. | Overall: 183 | M: 167 | Cat M23: 26 |
| 04.05.2012 | Yamaguchi 100 Hagi-O-Kan Maranic 70 km (JPN) | 70km | |||
| 8:07:29 h | Iwasaki, Masaaki | *Fukuoka Pref. | Overall: 42 | M: 37 | Cat M23: 8 |
| 2011 | 1 Event, 70 km (More) | ||||
| 04.05.2011 | Yamaguchi 100 Hagi-O-Kan Maranic 70 km (JPN) | 70km | |||
| 8:46:48 h | Iwasaki, Masaaki | *Fukuoka Pref. | Overall: 34 | M: 31 | Cat M23: 8 |
| 2010 | 1 Event, 70 km (More) | ||||
| 04.05.2010 | Yamaguchi 100 Hagi-O-Kan Maranic 70 km (JPN) | 70km | |||
| 9:38:17 h | Iwasaki, Masaaki | *Fukuoka Pref. | Overall: 56 | M: 47 | Cat M23: 13 |
| 2009 | 1 Event, 70 km (More) | ||||
| 04.05.2009 | Yamaguchi 100 Hagi-O-Kan Maranic 70 km (JPN) | 70km | |||
| 9:40:17 h | Iwasaki, Masaaki | *Fukuoka | Overall: 75 | M: 70 | Cat M23: 18 |
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 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 100km | 9:47:38 |
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11:49:11
(3298/1569) |
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9:47:38
(1450/560) |
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11:31:32
(3790/1197) |
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10:48:35
(2632/712) |
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Comparison table
Comparison of performances in races with multiple participations
| 2025 | 2024 | 2023 | 2022 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yamaguchi 100 Hagi-O-Kan Maranic 70 km | 7 | 6:54:02 | 7:39:17 | 7:36:51 | 8:07:29 | 8:46:48 | 9:38:17 | 9:40:17 | |||||||||
| Izu Trail Journey | 4 | 10:24:23 | 9:29:29 | 8:35:36 | 8:37:13 | ||||||||||||
| Shinetsu Five Mountains Trail 110km | 3 | 21:41:30 | 19:40:31 | 14:36:49 | |||||||||||||
| Ultra-Trail Mt. Fuji (UTMF) | 3 | 36:26:37 | 36:50:53 | 33:30:46 | |||||||||||||
| TransLantau 100 by UTMB | 2 | 20:02:32 | 23:07:21 | ||||||||||||||
| Hasetsune Cup - Japan Mountain Endurance Race | 2 | 12:35:37 | 16:13:54 | ||||||||||||||
| River Shimanto 100km | 2 | 11:49:11 | 10:48:35 | ||||||||||||||
| Aso Caldera Super Marathon 100 km | 2 | 11:57:00 | 12:10:31 |