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Marathon Deutsche Weinstraße 2026   HaWei50 50km Ultralauf 28.2.2026   3h, 6h, 12h, 24h of Santander  
Name: Ishiduka, Jiro 石塚二朗   Submit Personal Website Send Link 
Club: Trail-Holic / Albatross 
Residence: Kanagawa Pref.
Year of birth: 1979 (Cat. german: M45)
Date of birth: 00.00.0000 (Cat. internat.: M45)
Nationality: JPN JPN Japan
RunnerID: 275677
 

17 search results (17 Events, 1777.57 km).  (More)

2025 1 Event, 160.934 km  (More)
04.-05.10.2025 Arkansas Traveller 100 (USA) 100mi
28:10:06 h Ishiduka, Jiro *JPN  Overall: 80 M: 61 Cat M45: 9
2024 2 Events, 321.868 km  (More)
12.-13.10.2024 Canal Corridor 100 Mile Endurance Run (USA) 100mi
21:08:54 h Ishiduka, Jiro *Zushi, JPN  Overall: 39 M: 34 Cat M40: 10
14.-16.09.2024 Shinetsu Five Mountains Trail 100 mile (JPN) 100mi
26:47:34 h Ishiduka, Jiro *Kanagawa Pref.  Overall: 114 M: 103 Cat M40: 30
2022 1 Event, 100 km  (More)
17.04.2022 Fuji 5 Lakes 100 km Challenge (JPN) 100km
12:45:20 h Ishiduka, Jiro   Overall: 626 M: 548 Cat M40: 58
2013 1 Event, 72 km  (More)
10.03.2013 Izu Trail Journey (JPN) 72km
11:17:06 h Ishiduka, Jiro *Kanagawa Pref.  Overall: 467 M: 433 Cat M23: 116
2012 6 Events, 681.268 km  (More)
11.11.2012 Kanna Mountain Run II (JPN) 50km
7:32:35 h Ishiduka, Jiro *Kanagawa Pref.  Overall: 16 M: 12 Cat M23: 5
03.-04.11.2012 OSJ Yatsugatake Super Trail 100 miles race (JPN) 100mi
28:34:29 h Ishiduka, Jiro *Kanagawa Pref.  Overall: 69 M: 67 Cat M23: 25
07.10.2012 Madarao Forest Trails 50km (JPN) 50km
5:34:53 h Ishiduka, Jiro Trail-Holic  Overall: 29 M: 28 Cat M23: 11
31.08.-02.09.2012 Ultra Trail Tour du Mont Blanc (UTMB) (FRA) 103.4km
20:09:09 h Ishiduka, Jiro Trail-Holic / Albatross  Overall: 968 M: 911 Cat M23: 191
15.-16.07.2012 OSJ Ontake 100 Mile Ultra Trail (JPN) 100mi
21:00:01 h Ishiduka, Jiro *Kanagawa Pref.  Overall: 12 M: 12 Cat M23: 4
18.-20.05.2012 Ultra-Trail Mount Fuji (UTMF) (JPN) 156km
29:56:51 h Ishiduka, Jiro *Kanagawa Pref.  Overall: 62 M: 57 Cat M23: 26
2011 2 Events, 160 km  (More)
02.10.2011 Madarao Forest Trails 50km (JPN) 50km
5:57:36 h Ishiduka, Jiro Trail-Holic  Overall: 62 M: 56 Cat M23: 17
24.-25.09.2011 Shinetsu Five Mountains Trail 110km (JPN) 110km
18:10:54 h Ishiduka, Jiro   Overall: 147 M: 132 Cat M23: 44
2010 3 Events, 231.5 km  (More)
10.-11.10.2010 Hasetsune Cup - Japan Mountain Endurance Race (JPN) 71.5km
14:26:15 h Ishiduka, Jiro   Overall: 402 M: 379 Cat M23: 126
03.10.2010 Madarao Forest Trails 50km (JPN) 50km
6:58:25 h Ishiduka, Jiro T-Holic  Overall: 129 M: 101 Cat M23: 30
19.-20.09.2010 Shinetsu Five Mountains Trail 110km (JPN) 110km
16:16:30 h Ishiduka, Jiro   Overall: 59 M: 52 Cat M23: 23
2009 1 Event, 50 km  (More)
04.10.2009 Madarao Forest Trails 50km (JPN) 50km
6:54:15 h Ishiduka, Jiro アルバトロス  Overall: 113 M: 102 Cat M23: 26

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 2022 2013 2012 2011 2010 2009

Comparison table

Comparison of performances in races with multiple participations

   2025 2024 2022 2013 2012 2011 2010 2009
Madarao Forest Trails 50km 4         5:34:53 5:57:36 6:58:25 6:54:15
Shinetsu Five Mountains Trail 110km 2           18:10:54 16:16:30