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Marathon Deutsche Weinstraße 2026   HaWei50 50km Ultralauf 28.2.2026   3h, 6h, 12h, 24h of Santander  
Name: Arai, Koujirou 荒井浩二郎   Submit Personal Website Send Link 
Club: ORC 
Residence: Tokyo
Year of birth: 1960 (Cat. german: M65)
Date of birth: 00.00.0000 (Cat. internat.: M65)
Nationality: JPN JPN Japan
RunnerID: 214558
 

23 search results (23 Events, 2015.668 km).  (More)

2024 2 Events, 135 km  (More)
26.-27.10.2024 Jungle Guruguru Max - 80 km (JPN) 80km
21:45:17 h Arai, Koujirou *Tokyo  Overall: 57 M: 47 Cat M60: 3
06.07.2024 Shiga Kogen 55 (JPN) 55km
10:39:43 h Arai, Koujirou *Tokyo  Overall: 336 M: 280 Cat M60: 9
2023 3 Events, 200 km  (More)
23.-24.09.2023 SkyViewTrail Memorial Cup (JPN) 80km
20:27:59 h Arai, Koujirou   Overall: 315 M: 270 Cat M60: 20
14.05.2023 FunTrails Round Minano (JPN) 51km
10:42:05 h Arai, Koujirou *Tokyo  Overall: 364 M: 311 Cat M60: 15
22.-23.04.2023 KAI 69k (JPN) 69km
17:17:03 h Arai, Koujirou *Tokyo  Overall: 643 M: 538 Cat M60: 29
2022 3 Events, 181.5 km  (More)
09.-10.10.2022 Hasetsune Cup - Japan Mountain Endurance Race (JPN) 71.5km
22:49:55 h Arai, Koujirou   Overall: 1183 M: 1044 Cat M60: 39
17.-18.07.2022 Nozawa Onsen 4100D Mountain Trail (JPN) 65km
14:56:34 h Arai, Koujirou *Tokyo  Overall: 385 M: 330 Cat M60: 10
27.05.2022 Karuizawa Trail Running Race (JPN) 45km
9:14:30 h Arai, Koujirou *Tokyo  Overall: 349 M: 302 Cat M60: 10
2018 1 Event, 71 km  (More)
22.04.2018 Fuji 5 Lakes 71 km Challenge (JPN) 71km
10:12:07 h Arai, Koujirou   Overall: 535 M: 391 Cat M55: 30
2015 3 Events, 341.8 km  (More)
31.10.-01.11.2015 Hasetsune Cup - Japan Mountain Endurance Race (JPN) 71.5km
18:37:52 h Arai, Koujirou   Overall: 1538 M: 1406 Cat M50: 153
25.-27.09.2015 Ultra-Trail Mt. Fuji (UTMF) (JPN) 170.3km
44:33:45 h Arai, Koujirou   Overall: 485 M: 408 Cat M50: 37
18.07.2015 OSJ Ontake 100km Ultra Trail (JPN) 100km
16:13:51 h Arai, Koujirou *Tokyo  Overall: 463 M: 427 Cat M50: 47
2014 1 Event, 160.934 km  (More)
25.-27.04.2014 Ultra-Trail Mt. Fuji (UTMF) (JPN) 100mi
44:50:25 h Arai, Koujirou *Tokyo  Overall: 754 M: 660 Cat M50: 52
2013 3 Events, 344.934 km  (More)
07.-08.09.2013 OSJ Yatsugatake Super Trail 100 miles race (JPN) 100mi
32:39:42 h Arai, Koujirou *Tokyo  Overall: 148 M: 142 Cat M50: 11
13.07.2013 OSJ Ontake 100km Ultra Trail (JPN) 100km
16:30:52 h Arai, Koujirou *Tokyo  Overall: 478 M: 450 Cat M50: 43
26.-27.04.2013 Shizuoka to Yamanashi (STY) (JPN) 84km
19:38:11 h Arai, Koujirou *Tokyo  Overall: 529 M: 487 Cat M50: 44
2012 2 Events, 153.5 km  (More)
07.-08.10.2012 Hasetsune Cup - Japan Mountain Endurance Race (JPN) 71.5km
15:57:55 h Arai, Koujirou   Overall: 887 M: 806 Cat M50: 62
19.-20.05.2012 Shizuoka to Yamanashi (STY) (JPN) 82km
18:29:19 h Arai, Koujirou *Tokyo  Overall: 319 M: 289 Cat M50: 20
2011 2 Events, 183.5 km  (More)
09.-10.10.2011 Hasetsune Cup - Japan Mountain Endurance Race (JPN) 71.5km
17:59:34 h Arai, Koujirou ORC  Overall: 1025 M: 922 Cat M50: 73
30.04.2011 Fuji 5 Lakes 112 km Challenge (JPN) 112km
14:16:52 h Arai, Koujirou ORC  Overall: 354 M: 314 Cat M50: 30
2010 2 Events, 171.5 km  (More)
10.-11.10.2010 Hasetsune Cup - Japan Mountain Endurance Race (JPN) 71.5km
18:57:07 h Arai, Koujirou   Overall: 1030 M: 942 Cat M45: 133
25.04.2010 Fuji 5 Lakes 100 km Challenge (JPN) 100km
13:16:52 h Arai, Koujirou ORC  Overall: 533 M: 456 Cat M45: 65
2009 1 Event, 72 km  (More)
26.04.2009 Fuji 5 Lakes 72 km Challenge (JPN) 72km
9:21:53 h Arai, Koujirou ORC  Overall: 256 M: 220 Cat M45: 27

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 2024 2023 2022 2018 2015 2014 2013 2012 2011 2010 2009

Comparison table

Comparison of performances in races with multiple participations

   2024 2023 2022 2018 2015 2014 2013 2012 2011 2010 2009
Hasetsune Cup - Japan Mountain Endurance Race 5     22:49:55   18:37:52     15:57:55 17:59:34 18:57:07  
Fuji 5 Lakes 72 km Challenge 2       10:12:07             9:21:53
OSJ Ontake 100km Ultra Trail 2         16:13:51   16:30:52        
Ultra-Trail Mt. Fuji (UTMF) 2         44:33:45 44:50:25          
Shizuoka to Yamanashi (STY) 2             19:38:11 18:29:19