Koji (井上康次) Inoue
ID 2010928
Born : 1984 Cat. M40 Ultrarunner since 2023 JPN
8
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
20
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
41,2%
Rank quotient ?This runner's calculation uses 8 eligible race(s): Σ(rank − 1) = 694; Σ finishers = 1 683. 694 / 1 683 × 100 = 41.24%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed8
Km — ultra races489 km
Longest race100,0 km
2nd Suo-Oshima Ultra Marathon - 100 km — 23/4/2023

Km per year (ultra races)

2022
100
1 race
2023
148
3 races
2024
151
3 races
2025
90
1 race
2026

Race types (share of distance)

Road20,4%
Trail79,6%

Wins & podiums (ultra)

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

Records

50 km5h51'09100 km12h46'39

HISTORY

8 race(s)
DateRacePerf.Rk
2026
04.07 90km JPN5th Central Alps Skyline Japan Piar 17:51:44 h2 🥈
2025
30.11 50km JPN12th Trainic world Soto-Chichibu Trail Run 50km 8:45:34 h66
23.09 50km JPN2nd OSJ Ontake 50km 5:51:09 h119
11.05 51km JPN6th FunTrails Round Minano 8:35:11 h186
2024
01.12 50km JPN11th Trainic world Soto-Chichibu Trail Run 50km 9:18:23 h94
22.09 50km JPN1st OSJ Ontake 50km 6:17:13 h84
25.08 48km JPN11th Tsukuba Renjyo 48 km Road & Trail Run 7:01:16 h73
2023
23.04 100km JPN2nd Suo-Oshima Ultra Marathon - 100 km 12:46:39 h78