Akira (皆川明) Minagawa

Born : 1983 Cat. M40 Ultrarunner since 2018

DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.

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

Countries visited ?

Japan

31,2%

Rank quotient ?This runner's calculation uses 7 eligible race(s): Σ(rank − 1) = 830; Σ finishers = 2 662. 830 / 2 662 × 100 = 31.18%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed7

Km — ultra races622 km

> 100 km4

> 160 km1

Longest race162,6 km

15th Shinetsu Five Mountains Trail 100 mile — 16/9/2023

Km per year (ultra races)

101

2022

263

2023

101

2024

2025

2026

Race types (share of distance)

Trail100,0%

Records

50 km6h59'34 100 km15h17'14 100 mi31h39'13

HISTORY

7 race(s)

Date		Race	Perf.	Rk
2025
07.09	50km	14th Hakuba Int. Trail Run	6:59:34 h	50
2024
08.06	100.8km	4th Okushinano 100	15:17:14 h	107
2023
16.09	162.6km	15th Shinetsu Five Mountains Trail 100 mile	31:39:13 h	152
10.06	100.8km	3rd Okushinano 100	16:52:37 h	213
2022
11.06	100.8km	2nd Okushinano 100	15:53:16 h	127
2019
16.06	53km	5th Echigo Country Trail	7:57:49 h	136
2018
20.10	54km	5th Shigakogen Extreme Trail	9:54:36 h	52

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	16/9/2023	15th Shinetsu Five Mountains Trail 100 mile	162,60	×6
✓ 2	8/6/2024	4th Okushinano 100	100,80	×4
✓ 3	10/6/2023	3rd Okushinano 100	100,80	×4
✓ 4	11/6/2022	2nd Okushinano 100	100,80	×4
✓ 5	20/10/2018	5th Shigakogen Extreme Trail	54,00	×2
✓ 6	16/6/2019	5th Echigo Country Trail	53,00	×2
✓ 7	7/9/2025	14th Hakuba Int. Trail Run	50,00	×2