Hiroshi (真継浩志) Masatsugu
Born : 1976 Cat. M50 Ultrarunner since 2007 JPN
60
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
65
DUV-index+ ?Largest integer N such that the race distances provide at least N complete segments of N km in total. A single long race may therefore contribute several segments. See the DUV-Index tab for the detailed calculation. calculation details
1
Countries visited ?JPNJapan
12,8%
Rank quotient ?This runner's calculation uses 61 eligible race(s): Σ(rank − 1) = 5 270; Σ finishers = 41 221. 5 270 / 41 221 × 100 = 12.78%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed61
Km — ultra races5 786 km
> 100 km11
> 160 km1
> 200 km1
Longest race251,0 km

Km per year (ultra races)

78
1 race
2022
78
1 race
2023
221
2 races
2024
2025
75
1 race
2026

Race types (share of distance)

Road87,5%
Trail12,5%

Wins & podiums (ultra)

🏆 Win0
🏆 Win M0
🏅 Top 32
🏅 Top 3 M3
Longest winning streak0
Current streak0

HISTORY

61 race(s)
DateRacePerf.Rk
2026
11.04 8h JPN21st Toda Saiko 8 Hours 75.000 km24
2024
20.10 70km JPN31. Ultramarathon Okumusashi 7:19:43 h91
05.10 151km JPN1st Noto Country Journey Run 21:27:51 h19
2023
04.06 78km JPN30. Ultramarathon Okumusashi 8:14:01 h111
2022
05.06 78km JPN29. Ultramarathon Okumusashi 7:46:38 h113
2021
03.10 84km JPN8th Naeba-Sanroku Geopark Tsunan Ultramarathon 84K 9:11:40 h8
10.04 70km JPN16th Toda Saiko 70 km 6:03:36 h58
2020
04.10 100km JPN7th Naeba-Sanroku Geopark Tsunan Ultramarathon 100K 10:24:55 h17
2019
14.09 251km JPN2nd Utsukushima Fukushima Journey Run 250K 41:24:26 h17
02.06 78km JPN26. Ultramarathon Okumusashi 8:07:52 h243
13.04 70km JPN14th Toda Saiko 70 km 6:52:24 h124
2018
30.09 64km JPN5th Naeba-Sanroku Geopark Tsunan Ultramarathon 64K 6:32:31 h6
14.04 70km JPN13th Toda Saiko 70 km 6:05:38 h49
2017
10.09 100km JPN5th 100 km Ultramarathon Hakusan-Shirakawago 10:41:43 h55
02.07 100km JPN1st Nikko 100km Ultramarathon 10:44:20 h134
04.06 78km JPN24. Ultramarathon Okumusashi 8:04:08 h217
26.03 58km JPN13th Izu Oshima Ultra 58 km 5:22:27 h4
09.01 6h JPN7th Iikoto Challenge - 6h 67.976 km5
2016
26.06 100km JPN31. Lake Saroma 100 km Ultramarathon 9:34:12 h299
05.06 78km JPN23. Ultramarathon Okumusashi 7:56:13 h248
22.05 77km JPN21th Saba Highway Ultramarathon 8:38:54 h48
2015
17.10 100km JPN6th Inagawa 100km Ultra-Marathon 11:09:13 h16
27.09 100km JPN25. Akita Nairiku 100km Marathon 9:24:06 h45
22.06 77km JPN22. Ultramarathon Okumusashi 7:44:18 h196
17.05 60km JPN1st Ishigaki Island Ultra Marathon 5:28:54 h3 🥉
28.03 100km JPN11th Izu Oshima Ultra 100 km 9:53:54 h17
2014
14.09 142km JPN17th Karisakatoge beyond Chichibu Run 18:04:55 h23
27.07 77km JPN21. Ultramarathon Okumusashi 8:07:49 h106
08.06 100km JPN10th Iwate Ginga 100km Marathon Challenge 9:26:27 h61
27.04 100km JPN16. Okukumano 100 km Ultramarathon 10:16:46 h26
29.03 100km JPN10th Izu Oshima Ultra 100 km 9:56:37 h14
2013
07.12 6h JPNEnteRun 6 hour race Winter 66.040 km11
20.10 100km JPN2nd Noto Peninsula 100 km Ultra Marathon 10:17:39 h36
22.09 100km JPN23. Akita Nairiku 100km Marathon 9:25:30 h48
28.07 77km JPN20. Ultramarathon Okumusashi 8:19:21 h263
19.05 100km JPN19th Yatsugatake Nobeyama 100 km 11:38:54 h215
21.04 112km JPN23rd Fuji 5 Lakes 112 km Challenge 13:24:36 h100
13.01 100km JPN23rd Miyako 100 km Ultramarathon 9:48:25 h20
2012
21.10 100km JPN18th River Shimanto 100km 9:38:42 h78
07.10 71.5km JPN20th Hasetsune Cup - Japan Mountain Endurance Race 13:12:08 h435
16.09 143km JPN15th Karisakatoge beyond Chichibu Run 17:52:14 h14
01.09 12h JPN15. Hiratsuka 12 hour race 121.100 km2 🥈
05.08 77km JPN19. Ultramarathon Okumusashi 7:47:06 h113
22.04 112km JPN22nd Fuji 5 Lakes 112 km Challenge 10:57:15 h46
2011
24.09 110km JPN3rd Shinetsu Five Mountains Trail 110km 16:39:41 h85
07.08 77km JPN18. Ultramarathon Okumusashi 8:05:25 h174
03.05 140km JPN23. Yamaguchi 100 Hagi-O-Kan Maranic 140 km 17:46:52 h10
2010
17.10 100km JPN16th River Shimanto 100km 9:25:11 h61
17.09 143km JPN12th Karisakatoge beyond Chichibu Run 18:35:49 h12
01.08 77km JPN17. Ultramarathon Okumusashi 7:17:01 h59
16.05 100km JPN16th Yatsugatake Nobeyama 100 km 10:47:17 h121
25.04 100km JPN12. Okukumano 100 km Ultramarathon 9:16:50 h4
2009
18.10 100km JPN15th River Shimanto 100km 9:22:00 h60
21.09 100km JPN1st Shinetsu Five Mountains Trail 100km 14:33:48 h54
02.08 75km JPN16. Ultramarathon Okumusashi 6:55:42 h62
24.05 100km JPN1st 100 km Ultra Maranic Osaka 9:30:50 h12
26.04 112km JPN19th Fuji 5 Lakes 112 km Challenge 11:36:26 h31
2008
12.10 71.5km JPN16th Hasetsune Cup - Japan Mountain Endurance Race 12:14:39 h256
03.08 75km JPN15. Ultramarathon Okumusashi 7:24:29 h78
18.05 100km JPN14th Yatsugatake Nobeyama 100 km 11:19:21 h114
2007
14.10 71.5km JPN15th Hasetsune Cup - Japan Mountain Endurance Race 13:47:58 h360