Nobuhiro (辰尾信浩) Tatsuo

Born : 1969 Cat. M55 Ultrarunner since 2014

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

48,9%

Rank quotient ?This runner's calculation uses 16 eligible race(s): Σ(rank − 1) = 2 754; Σ finishers = 5 629. 2 754 / 5 629 × 100 = 48.93%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed18

Km — ultra races1 617 km

> 100 km6

> 160 km4

Longest race163,1 km

16th Shinetsu Five Mountains Trail 100 mile — 14/9/2024

Km per year (ultra races)

2022

263

2023

213

2024

262

2025

2026

Race types (share of distance)

Road17,3%

Trail70,3%

Stage12,4%

Records

50 km7h32'49 100 km12h33'27 100 mi27h16'54

HISTORY

16 race(s) · 4 stage(s) nested

Date		Race	Perf.	Rk
2025
13.09	162.2km	17th Shinetsu Five Mountains Trail 100 mile	32:28:52 h	260
05–06.04	100km/2stages	4th Ultra Udon Maranic	12:53:14 h	18
05.04	50km	4th Ultra Udon Maranic stage 1 - 50km	6:32:43 h	20
06.04	50km	4th Ultra Udon Maranic stage 2 - 50km	6:20:31 h	19
2024
14.09	163.1km	16th Shinetsu Five Mountains Trail 100 mile	27:16:54 h	149
05.04	50km	3rd Ultra Udon Maranic	7:32:49 h	47
2023
16.09	162.6km	15th Shinetsu Five Mountains Trail 100 mile	31:08:40 h	132
04–05.03	100km/2stages	2nd Ultra Udon Maranic	13:06:11 h	31
04.03	45km	2nd Ultra Udon Maranic stage 1 - 45km	6:12:20 h	64
05.03	55km	2nd Ultra Udon Maranic stage 2 - 55km	6:53:51 h	21
2022
02.04	60km	1st Ultra Udon Maranic	8:40:08 h	43
2019
14.09	100mi	11th Shinetsu Five Mountains Trail 100 mile	32:27:26 h	275
2018
16.09	110km	10th Shinetsu Five Mountains Trail 110km	19:40:45 h	146
22.04	70km	10th 70 km Ultra Maranic Osaka	8:19:19 h	41
2017
15.07	65km	8th Nozawa Onsen 4100D Mountain Trail	10:49:04 h	71
2016
18.09	110km	8th Shinetsu Five Mountains Trail 110km	19:29:27 h	350
16.07	65km	7th Nozawa Onsen 4100D Mountain Trail	10:59:43 h	89
24.04	100km	26th Fuji 5 Lakes 100 km Challenge	12:33:27 h	600
2015
28.06	72.7km	2. Spatrail - Shima to Kusatsu	12:13:31 h	352
2014
20.07	65km	5th Nozawa Onsen 4100D Mountain Trail	11:44:57 h	166

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	14/9/2024	16th Shinetsu Five Mountains Trail 100 mile	163,10	×4
✓ 2	16/9/2023	15th Shinetsu Five Mountains Trail 100 mile	162,60	×4
✓ 3	13/9/2025	17th Shinetsu Five Mountains Trail 100 mile	162,20	×4
✓ 4	14/9/2019	11th Shinetsu Five Mountains Trail 100 mile	160,93	×4
✓ 5	16/9/2018	10th Shinetsu Five Mountains Trail 110km	110,00	×3
✓ 6	18/9/2016	8th Shinetsu Five Mountains Trail 110km	110,00	×3
✓ 7	5/4/2025	4th Ultra Udon Maranic	100,00	×2
✓ 8	4/3/2023	2nd Ultra Udon Maranic	100,00	×2
✓ 9	24/4/2016	26th Fuji 5 Lakes 100 km Challenge	100,00	×2
✓ 10	28/6/2015	2. Spatrail - Shima to Kusatsu	72,70	×2
✓ 11	22/4/2018	10th 70 km Ultra Maranic Osaka	70,00	×1
✓ 12	15/7/2017	8th Nozawa Onsen 4100D Mountain Trail	65,00	×1
✓ 13	16/7/2016	7th Nozawa Onsen 4100D Mountain Trail	65,00	×1
✓ 14	20/7/2014	5th Nozawa Onsen 4100D Mountain Trail	65,00	×1
✓ 15	2/4/2022	1st Ultra Udon Maranic	60,00	×1
✓ 16	5/4/2024	3rd Ultra Udon Maranic	50,00	×1