Jun (田中潤) Tanaka
ID 366649
Born : 1973 Cat. M50 Ultrarunner since 2012 JPN
29
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
50
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
19,5%
Rank quotient ?This runner's calculation uses 29 eligible race(s): Σ(rank − 1) = 1 475; Σ finishers = 7 560. 1 475 / 7 560 × 100 = 19.51%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed29
Km — ultra races3 062 km
> 100 km19
> 160 km3
Longest race200,0 km
9th Ultra Walking around Lake Biwa — 2/5/2026

Km per year (ultra races)

210
2 races
2022
320
3 races
2023
783
7 races
2024
823
8 races
2025
856
8 races
2026

Race types (share of distance)

Road13,2%
Trail23,1%
Ult.Walk63,8%

Wins & podiums (ultra)

🏆 Win1
🏆 Win M1
🏅 Top 32
🏅 Top 3 M5
Longest winning streak1
Current streak0

Records

50 km7h51'22100 km15h31'5950 mi11h50'22100 mi17h51'10

HISTORY

29 race(s)
DateRacePerf.Rk
2026
06.06 63km JPN14th Tojinbo 62 km Ultramarathon 9:32:20 h195
16.05 102km JPN5th Kobe Akashi Ultra Marathon 14:58:23 h1 🏆
02.05 200km JPN9th Ultra Walking around Lake Biwa 33:56:38 h4
19.04 80km JPN36th Fuji 4 Lakes 80 km Challenge 11:50:22 h292
18.04 104km JPN3rd Osaka Ultra Walking 17:01:59 h2 🥈
21.02 105km JPN1st Lake Hamana and the Enshu Tokaido Ultra 18:27:50 h11
01.02 100km JPN5th Amami yori yori Run 15:31:59 h58
10.01 102km JPN3rd Nara Mahoroba Ultra Walking 17:50:23 h15
2025
01.11 100km JPN1st BIWA100 Ultra Walk 16:55:59 h18
21.06 110km JPN3rd Awaji Island Round Ultra 18:31:35 h4
17.05 102km JPN4th Kobe Akashi Ultra Marathon 17:23:13 h7
03.05 200km JPN8th Ultra Walking around Lake Biwa 39:22:12 h18
19.04 104km JPN2nd Osaka Ultra Walking 18:42:53 h5
15.03 50km JPN2nd One-day walking - Kansai 7:51:22 h33
12.01 55km JPN8th Yakushima Ultramarathon 55 km 7:56:43 h28
11.01 102km JPN2nd Nara Mahoroba Ultra Walking 20:10:55 h51
2024
23.11 103km JPN3rd Kyoto Ultra Walking 110km 22:03:55 h76
19.10 100mi JPN10th Lake Biwa Charity 100mi Walking Tournament 17:51:10 h14
08.06 110km JPN2nd Awaji Island Round Ultra 18:49:49 h4
04.05 102km JPN3rd Kobe Akashi Ultra Marathon 17:55:00 h9
06.04 103km JPN7th Ultra Walking around Lake Biwa 17:27:19 h7
23.02 104km JPN1st Osaka Ultra Walking 19:19:11 h14
13.01 100km JPN1st Nara Mahoroba Ultra Walking 20:02:02 h44
2023
25.11 110km JPN2nd Kyoto Ultra Walking 110km 21:40:55 h20
14.10 100km JPN9th Lake Biwa Charity 100km Walking Tournament 18:16:07 h29
11.02 110km JPN1st Awaji Island Round Ultra 23:06:21 h72
2022
26.11 110km JPN1st Kyoto Ultra Walking 110km 25:35:05 h118
15.10 100km JPN8th Lake Biwa Charity 100km Walking Tournament 22:33:27 h49
2012
03.05 70km JPN20. Mukogawa Yurikamome Ultra Marathon 8:01:49 h306