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Marathon Deutsche Weinstraße 2026   HaWei50 50km Ultralauf 28.2.2026   3h, 6h, 12h, 24h of Santander  
Name: Koseki, Tooru 小関秀   Submit Personal Website Send Link 
Club: 三井化学 
Residence: Chiba Pref.
Year of birth: 1972 (Cat. german: M50)
Date of birth: 00.00.0000 (Cat. internat.: M50)
Nationality: JPN JPN Japan
RunnerID: 976795
 

24 search results (24 Events, 1746.5 km).  (More)

2025 2 Events, 238.5 km  (More)
12.-13.10.2025 Hasetsune Cup - Japan Mountain Endurance Race (JPN) 71.5km
17:29:01 h Koseki, Tooru   Overall: 559 M: 511 Cat M50: 101
25.-26.04.2025 Ultra-Trail Mt. Fuji (UTMF) (JPN) 167km
36:24:43 h Koseki, Tooru   Overall: 446 M: 408 Cat M50: 54
2024 4 Events, 297 km  (More)
22.12.2024 Coast to Coast Boso hanto (JPN) 70km
9:45:30 h Koseki, Tooru   Overall: 88 M: 75 Cat M50: 10
03.11.2024 Koshu Alps Haute Route Challenge (JPN) 68km
13:47:24 h Koseki, Tooru   Overall: 50 M: 43 Cat M50: 14
16.06.2024 Sapporo Teine Trail (JPN) 50km
8:05:44 h Koseki, Tooru   Overall: 71 M: 62 Cat M50: 11
23.-24.03.2024 Hiroshima Wangan Trail Run (JPN) 109km
23:34:16 h Koseki, Tooru   Overall: 139 M: 124 Cat M50: 17
2023 4 Events, 301 km  (More)
17.12.2023 Coast to Coast Boso hanto (JPN) 72km
9:07:35 h Koseki, Tooru   Overall: 82 M: 73 Cat M50: 8
22.10.2023 Great Ryozen Mountain  (JPN) 51km
7:47:09 h Koseki, Tooru   Overall: 41 M: 40 Cat M50: 8
23.-24.09.2023 SkyViewTrail Memorial Cup (JPN) 128km
27:58:04 h Koseki, Tooru   Overall: 55 M: 51 Cat M50: 11
06.08.2023 Mount Akagi Trail Running Race (JPN) 50km
8:43:46 h Koseki, Tooru   Overall: 70 M: 63 Cat M50: 10
2022 2 Events, 210 km  (More)
18.-19.09.2022 Shinetsu Five Mountains Trail 110km (JPN) 110km
20:21:04 h Koseki, Tooru *Chiba Pref.  Overall: 141 M: 123 Cat M45: 29
11.-12.06.2022 Okushinano 100 (JPN) 100km
17:25:18 h Koseki, Tooru *Chiba Pref.  Overall: 229 M: 208 Cat M45: 41
2021 1 Event, 50 km  (More)
07.11.2021 Nakanoto Treasure Trail Run Festival (JPN) 50km
7:10:37 h Koseki, Tooru *Chiba Pref.  Overall: 96 M: 89 Cat M45: 24
2019 4 Events, 245 km  (More)
03.11.2019 Koshu Alps Lily Route Challenge (JPN) 50km
8:53:35 h Koseki, Tooru   Overall: 34 M: 31 Cat M45: 8
21.-22.09.2019 SkyView Ultra-Trail 70 - Yamada Noboru Memorial Cup (JPN) 75km
13:35:19 h Koseki, Tooru   Overall: 44 M: 40 Cat M45: 6
28.07.2019 Mt. Taisetsu Trail Journey (JPN) 70km
10:44:49 h Koseki, Tooru   Overall: 37 M: 31 Cat M45: 10
09.06.2019 Skyline Trail Sugadaira (JPN) 50km
7:03:08 h Koseki, Tooru   Overall: 47 M: 40 Cat M45: 6
2018 4 Events, 241 km  (More)
16.12.2018 Coast to Coast 70k Trail Run (JPN) 68km
8:51:02 h Koseki, Tooru   Overall: 83 M: 78 Cat M45: 18
22.-23.09.2018 SkyView Ultra-Trail 60 - Yamada Noboru Memorial Cup (JPN) 75km
14:11:35 h Koseki, Tooru *Chiba Pref.  Overall: 47 M: 42 Cat M45: 8
26.08.2018 Tsukuba Renjyo 48 Km Road & Trail Run (JPN) 48km
6:18:10 h Koseki, Tooru 三井化学  Overall: 35 M: 32 Cat M45: 8
10.06.2018 Skyline Trail Sugadaira (JPN) 50km
7:36:11 h Koseki, Tooru   Overall: 57 M: 51 Cat M45: 5
2017 2 Events, 116 km  (More)
17.12.2017 Coast to Coast 70k Trail Run (JPN) 68km
8:56:03 h Koseki, Tooru   Overall: 90 M: 86 Cat M40: 20
27.08.2017 Tsukuba Renjyo 48 Km Road & Trail Run (JPN) 48km
5:38:15 h Koseki, Tooru 三井化学  Overall: 30 M: 28 Cat M40: 4
2016 1 Event, 48 km  (More)
28.08.2016 Tsukuba Renjyo 48 Km Road & Trail Run (JPN) 48km
5:56:33 h Koseki, Tooru 三井化学  Overall: 55 M: 47 Cat M40: 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 2019 2018 2017 2016

Comparison table

Comparison of performances in races with multiple participations

   2025 2024 2023 2022 2021 2019 2018 2017 2016
Tsukuba Renjyo 48 Km Road & Trail Run 3             6:18:10 5:38:15 5:56:33
Coast to Coast Boso hanto 2   9:45:30 9:07:35            
Skyline Trail Sugadaira 2           7:03:08 7:36:11    
SkyView Ultra-Trail 60 - Yamada Noboru Memorial Cup 2           13:35:19 14:11:35    
Coast to Coast 70k Trail Run 2             8:51:02 8:56:03