Keisuke (前泊桂丞) Maedomari
ID 845341
Born : 1977 Cat. M45 Ultrarunner since 2016 JPN
23
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
55
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
72,6%
Rank quotient ?This runner's calculation uses 23 eligible race(s): Σ(rank − 1) = 6 348; Σ finishers = 8 738. 6 348 / 8 738 × 100 = 72.65%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed24
Km — ultra races3 649 km
> 100 km12
> 160 km7
> 200 km4
Longest race516,0 km
20th River Road Foot Race 514 km — 30/4/2025

Km per year (ultra races)

228
2 races
2022
713
2 races
2023
200
1 race
2024
578
2 races
2025
2026

Race types (share of distance)

Road94,1%
Stage5,9%

Records

100 km11h40'0650 mi9h48'0012 h93,31 km

HISTORY

23 race(s) · 2 stage(s) nested
DateRacePerf.Rk
2025
30.04 516km JPN20th River Road Foot Race 514 km 5d 01:47:01 h36
26.01 62km JPN3. Minuma Challenge 60 6:52:32 h19
2024
09.03 200km JPN14th Little Edo Oedo 200k 34:29:53 h141
2023
30.04 513km JPN18th River Road Foot Race 513 km 5d 07:42:05 h55
11.03 200km JPN13th Little Edo Oedo 200k 35:21:15 h199
2022
29.10 146km JPN4th Autumn leaves in Okumusashi / Chichibu Journey run 22:11:07 h54
21.03 81.6km JPN10th Arakawa Riverside Journey - 81.6 km 9:48:00 h9
2021
30.10 146km JPN3rd Autumn leaves in Okumusashi / Chichibu Journey run 23:44:37 h163
27.02 200km JPN11th Little Edo Oedo 200k 34:51:20 h154
2020
24.10 146km JPN2nd Autumn leaves in Okumusashi / Chichibu Journey run 22:33:13 h101
21.03 80km JPN8th Arakawa Riverside Journey - 80 km 10:50:18 h17
19.01 100km JPN30th Miyako 100 km Ultramarathon 11:40:06 h121
2019
02.06 78km JPN26. Ultramarathon Okumusashi 11:24:39 h1376
03.05 254km JPN15th River Road Foot Race 254 km 2d 06:09:15 h39
16–17.03 136km/2stages JPN7th Arakawa Riverside Journey Stage Race 17:54:55 h40
23.02 113km JPN9th Oedo Night run 113k 18:52:44 h129
2018
03.06 78km JPN25. Ultramarathon Okumusashi 11:48:50 h1342
03.03 204km JPN8th Little Edo Oedo 200k 35:40:35 h234
2017
30.09 12h JPN2nd Coedo Kawagoe Running Fest 12-hours run 93.310 km5
01.07 8h JPN23rd 8-Hour Endurance Race Tokorozawa 55.182 km190
04.06 78km JPN24. Ultramarathon Okumusashi 9:21:31 h587
04.03 91km JPN7th Little Edo 91km 12:11:37 h31
2016
05.06 78km JPN23. Ultramarathon Okumusashi 11:31:07 h1329