Yuuji (羽賀祐二) Haga

Ultrarunner since 2003

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

29,3%

Rank quotient ?This runner's calculation uses 4 eligible race(s): Σ(rank − 1) = 1 090; Σ finishers = 3 717. 1 090 / 3 717 × 100 = 29.32%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed4

Km — ultra races315 km

Longest race100,0 km

9th Muraoka 100 km Ultra Marathon — 30/9/2006

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road31,8%

Trail68,2%

Records

100 km10h30'27

HISTORY

4 race(s)

Date		Race	Perf.	Rk
2006
08.10	71.5km	14th Hasetsune Cup - Japan Mountain Endurance Race	10:53:18 h	53
30.09	100km	9th Muraoka 100 km Ultra Marathon	10:30:27 h	16
2004
10.10	71.5km	12th Hasetsune Cup - Japan Mountain Endurance Race	12:24:14 h	58
2003
25.10	71.5km	11th Hasetsune Cup - Japan Mountain Endurance Race	22:39:23 h	967

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Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	30/9/2006	9th Muraoka 100 km Ultra Marathon	100,00	×5
✓ 2	8/10/2006	14th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×4
✓ 3	10/10/2004	12th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×4
✓ 4	25/10/2003	11th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×4