Akira (長島晃) Nagashima
Born : 1952 Cat. M70 Ultrarunner since 2005 JPN
58
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
100
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
58,2%
Rank quotient ?This runner's calculation uses 60 eligible race(s): Σ(rank − 1) = 18 523; Σ finishers = 31 849. 18 523 / 31 849 × 100 = 58.16%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed60
Km — ultra races12 654 km
> 100 km26
> 160 km22
> 200 km22
Longest race582,0 km

Km per year (ultra races)

78
1 race
2022
511
2 races
2023
1 187
3 races
2024
1 117
2 races
2025
2026

Race types (share of distance)

Road98,9%
Trail1,1%

Wins & podiums (ultra)

🏆 Win1
🏆 Win M1
🏅 Top 33
🏅 Top 3 M5
Longest winning streak1
Current streak0

HISTORY

60 race(s)
DateRacePerf.Rk
2025
10.05 535km JPNAcross Honshu R8 Foot Race - reverse direction 9d 12:51:33 h2 🥈
02.04 582km JPNAcross Honshu R9 Foot Race - reverse direction 9d 14:02:00 h1 🏆
2024
20.10 70km JPN31. Ultramarathon Okumusashi 10:58:26 h671
01.05 582km JPNAcross Honshu R9 Foot Race 9d 14:23:23 h5
01.04 535km JPNAcross Honshu R8 Foot Race 9d 06:48:34 h4
2023
04.06 78km JPN30. Ultramarathon Okumusashi 11:55:39 h808
06.04 433km JPNAcross Honshu R7 Foot Race - reverse direction 7d 08:30:42 h4
2022
05.06 78km JPN29. Ultramarathon Okumusashi 11:35:49 h812
2021
30.04 503km JPN16th River Road Foot Race 503 km 5d 10:16:01 h56
2020
24.10 146km JPN2nd Autumn leaves in Okumusashi / Chichibu Journey run 25:27:48 h186
2019
19.10 51.4km JPN10th Inagawa 100km Ultra-Marathon 6:42:30 h271
02.06 78km JPN26. Ultramarathon Okumusashi 11:27:35 h1393
30.04 514km JPN15th River Road Foot Race 514 km 5d 08:34:45 h67
13.01 100km JPN4th Yakushima Ultramarathon 14:47:07 h102
2018
14.07 263km JPN3rd Michinoku Tsugaru Journey Run 263K 2d 02:23:38 h87
03.06 78km JPN25. Ultramarathon Okumusashi 10:18:36 h786
30.04 514km JPN14th River Road Foot Race 514 km 5d 07:54:03 h58
2017
04.06 78km JPN24. Ultramarathon Okumusashi 10:43:47 h1127
03.05 254km JPN13th River Road Foot Race 254 km 2d 08:14:05 h53
04.03 204km JPN7th Little Edo Oedo 200k 35:30:05 h212
2016
09.10 60km JPN11th Echigo Kubikino 60km Ultramarathon 7:35:38 h218
05.06 78km JPN23. Ultramarathon Okumusashi 10:47:12 h1130
30.04 520km JPN12th River Road Foot Race 520 km 5d 09:32:51 h57
05.03 204km JPN6th Little Edo Oedo 200k 33:59:12 h126
2015
22.06 77km JPN22. Ultramarathon Okumusashi 10:38:51 h1091
30.04 520km JPN11th River Road Foot Race 520 km 5d 02:35:00 h25
28.02 203km JPN5th Little Edo Oedo 200k 35:29:41 h211
2014
12.10 100km JPN10th Echigo Kubikino 100km Ultramarathon 13:22:00 h1188
27.07 77km JPN21. Ultramarathon Okumusashi 10:15:42 h532
01.03 203km JPN4th Little Edo Oedo 200k 35:08:41 h119
2013
28.07 77km JPN20. Ultramarathon Okumusashi 9:25:32 h534
30.04 520km JPN9th River Road Foot Race 520 km 4d 22:10:54 h17
2012
06.10 100km JPN9th Echigo Kubikino 100km Ultramarathon 12:28:44 h551
23.09 100km JPN22. Akita Nairiku 100km Marathon 11:51:36 h321
05.08 77km JPN19. Ultramarathon Okumusashi 9:38:09 h452
30.04 520km JPN8th River Road Foot Race 520 km 4d 22:54:42 h12
2010
29.08 52km JPN58. Tsurunuma 52 km 5:48:33 h33
01.08 77km JPN17. Ultramarathon Okumusashi 9:36:30 h386
27.06 100km JPN25. Lake Saroma 100 km Ultramarathon 11:20:15 h570
30.04 520km JPN6th River Road Foot Race 520 km 4d 19:39:31 h11
04.04 100km JPN57. Tsurunuma 100 km 10:25:21 h27
2009
02.08 75km JPN16. Ultramarathon Okumusashi 8:23:34 h283
30.04 520km JPN5th River Road Foot Race 520 km 5d 02:29:59 h14
11.04 70km JPN4th Toda Saiko 70 km 7:59:28 h93
2008
12.10 71.5km JPN16th Hasetsune Cup - Japan Mountain Endurance Race 18:10:23 h1095
03.08 75km JPN15. Ultramarathon Okumusashi 8:52:42 h276
06.07 8h JPN14th 8-Hour Endurance Race Tokorozawa 64.920 km52
30.04 522km JPN4th River Road Foot Race 522 km 5d 04:15:30 h13
12.04 70km JPN3rd Toda Saiko 70 km 7:22:11 h63
2007
16.09 141km JPN10th Karisakatoge beyond Chichibu Run 22:39:50 h42
05.08 75km JPN14. Ultramarathon Okumusashi 8:11:35 h137
24.06 100km JPN22. Lake Saroma 100 km Ultramarathon 11:14:13 h726
16.06 100km JPN11th Kamoshika Mountain Village Tour 18:30:35 h35
30.04 270km JPN3rd River Road Foot Race 270 km 2d 02:27:27 h3 🥉
07.04 70km JPN2nd Toda Saiko 70 km 7:08:21 h35
2006
08.10 71.5km JPN14th Hasetsune Cup - Japan Mountain Endurance Race 19:38:04 h1006
13.08 75km JPN13. Ultramarathon Okumusashi 8:25:03 h150
17.06 106km JPN10th Kamoshika Mountain Village Tour 20:08:50 h9
2005
18.09 141km JPN8th Karisakatoge beyond Chichibu Run 21:47:28 h20
07.08 75km JPN12. Ultramarathon Okumusashi 9:04:25 h215