Naoki (奥村直樹) Okumura
ID 87918
Born : 1977 Cat. M45 Ultrarunner since 2007 JPN
41
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
57
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
4
Countries visited ?FRAFranceGREGreeceITAItalyJPNJapan
15,5%
Rank quotient ?This runner's calculation uses 41 eligible race(s): Σ(rank − 1) = 4 626; Σ finishers = 29 824. 4 626 / 29 824 × 100 = 15.51%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed41
Km — ultra races4 591 km
> 100 km15
> 160 km9
> 200 km4
> 24h1
Longest race280,0 km
2nd Round of the Boso Peninsula 280K — 13/7/2024

Km per year (ultra races)

2022
120
1 race
2023
626
3 races
2024
2025
2026

Race types (share of distance)

Road43,3%
Trail56,7%

Wins & podiums (ultra)

🏆 Win0
🏆 Win M0
🏅 Top 31
🏅 Top 3 M1
Longest winning streak0
Current streak0

Records

50 km5h10'15100 km8h22'4250 mi11h44'24100 mi23h06'1424 h120,17 km

HISTORY

41 race(s)
DateRacePerf.Rk
2024
28.09 246km GRE41. Spartathlon 34:35:36 h114
13.07 280km JPN2nd Round of the Boso Peninsula 280K 2d 03:12:35 h6
15.06 100km JPN3. OSJ Aizu Bandaisan Ultramarathon - 100 km 10:04:43 h17
2023
29.04 120km JPN6th Muroto Aanan 120 km 10:36:26 h3 🥉
2017
08.10 71.5km JPN25th Hasetsune Cup - Japan Mountain Endurance Race 22:05:29 h1577
16.09 102km JPN9th Shinetsu Five Mountains Trail 100 mile 14:28:49 h34
2016
26.08 170km FRA14ème Ultra Trail Tour du Mont Blanc 37:26:48 h341
22.05 100km JPN22nd Yatsugatake Nobeyama 100 km 9:13:52 h19
2015
19.07 118km JPN2nd SkyView Ultra-Trail - Yamada Noboru Memorial Cup 19:48:03 h10
30.05 50km JPN1st Mt. Hiei Int. 50 km Trail Run 8:17:50 h68
12.04 63km JPN1st Okumikawa Power Trail 9:05:22 h24
2014
12.10 71.5km JPN22nd Hasetsune Cup - Japan Mountain Endurance Race 9:33:12 h67
05.07 80km JPN4th Utsukushigahara 80 km Trail Run 11:44:24 h31
07.06 100km JPN24th Aso Caldera Super Marathon 100 km 8:22:42 h16
25.04 100mi JPN3rd Ultra-Trail Mt. Fuji 28:29:56 h61
2013
06.10 50km JPN7th Madarao Forest Trails 50km 5:10:15 h14
30.08 168km FRA11ème Ultra Trail Tour du Mont Blanc 35:21:14 h361
28.07 77km JPN20. Ultramarathon Okumusashi 6:36:41 h31
13.07 100mi JPN6th OSJ Ontake 100 Mile Ultra Trail 23:10:19 h25
02.06 50km JPN5th OSJ Okukuji Trail 50k 9:26:04 h22
19.05 100km JPN19th Yatsugatake Nobeyama 100 km 9:26:56 h22
10.03 72km JPN1st Izu Trail Journey 8:08:47 h28
2012
05.08 77km JPN19. Ultramarathon Okumusashi 7:57:48 h137
22.04 112km JPN22nd Fuji 5 Lakes 112 km Challenge 9:51:03 h8
2011
30.09 245.3km GRE29. Spartathlon 33:54:09 h63
07.08 77km JPN18. Ultramarathon Okumusashi 6:13:53 h23
16.07 100mi JPN4th OSJ Ontake 100 Mile Ultra Trail 23:06:14 h20
2010
10.10 71.5km JPN18th Hasetsune Cup - Japan Mountain Endurance Race 11:44:44 h154
28.08 89km ITA8ème Ultra Trail Tour du Mont Blanc 19:20:29 h540
01.08 77km JPN17. Ultramarathon Okumusashi 6:44:24 h31
18.07 100km JPN3rd OSJ Ontake 100km Ultra Trail 11:28:26 h14
04.07 50km JPN2nd OSJ Shiga Kogen Trail 50K 8:16:52 h51
19.06 24h JPN9. Tokyo Challenge 24 hours 120.170 km41
16.05 100km JPN16th Yatsugatake Nobeyama 100 km 9:12:02 h19
25.04 112km JPN20th Fuji 5 Lakes 112 km Challenge 10:03:05 h17
2009
25.09 245.3km GRE27. Spartathlon 34:57:17 h98
19.07 100km JPN2nd OSJ Ontake 100km Ultra Trail 14:22:05 h120
17.05 100km JPN15th Yatsugatake Nobeyama 100 km 10:02:45 h45
2008
12.10 71.5km JPN16th Hasetsune Cup - Japan Mountain Endurance Race 11:05:35 h126
20.07 100km JPN1st OSJ Ontake 100km Ultra Trail 13:14:53 h55
2007
14.10 71.5km JPN15th Hasetsune Cup - Japan Mountain Endurance Race 12:31:56 h214