Hiromi (小泉寛美) Koizumi

ID 221940

Born : 1975 Cat. W50 Ultrarunner since 2010

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

60,9%

Rank quotient ?This runner's calculation uses 11 eligible race(s): Σ(rank − 1) = 3 880; Σ finishers = 6 375. 3 880 / 6 375 × 100 = 60.86%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed11

Km — ultra races1 177 km

> 100 km4

> 160 km2

> 24h2

Longest race169,1 km

12. Tokyo Challenge 24 hours — 15/6/2013

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road77,8%

Trail22,2%

Wins & podiums (ultra)

🏆 Win0

🏆 Win F1

🏅 Top 30

🏅 Top 3 F1

Longest winning streak0

Current streak0

Records

100 km13h07'51 100 mi43h38'31 12 h103,32 km 24 h169,05 km

HISTORY

11 race(s)

Date		Race	Perf.	Rk
2014
27.07	77km	21. Ultramarathon Okumusashi	10:26:53 h	580
15.06	100km	9. Okinoshima 100km Ultra Marathon	13:35:31 h	232
2013
09.11	24h	8th Jingu Gaien 24 Hour Challenge	158.193 km	55
15.06	24h	12. Tokyo Challenge 24 hours	169.050 km	13
26.04	100mi	2nd Ultra-Trail Mount Fuji	43:38:31 h	570
2012
05.08	77km	19. Ultramarathon Okumusashi	10:58:55 h	841
15.07	100km	5th OSJ Ontake 100km Ultra Trail	17:10:47 h	614
16.06	12h	11. Tokyo Challenge 12 hours	103.320 km	16
22.04	100km	22nd Fuji 5 Lakes 100 km Challenge	13:07:51 h	686
2011
30.04	72km	21st Fuji 5 Lakes 72 km Challenge	8:46:41 h	164
2010
17.10	60km	16th River Shimanto 60km	7:18:33 h	120

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Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	15/6/2013	12. Tokyo Challenge 24 hours	169,05	×5
✓ 2	26/4/2013	2nd Ultra-Trail Mount Fuji (UTMF)	160,93	×5
✓ 3	9/11/2013	8th Jingu Gaien 24 Hour Challenge	158,19	×4
✓ 4	16/6/2012	11. Tokyo Challenge 12 hours	103,32	×3
✓ 5	15/6/2014	9. Okinoshima 100km Ultra Marathon	100,00	×3
✓ 6	15/7/2012	5th OSJ Ontake 100km Ultra Trail	100,00	×3
✓ 7	22/4/2012	22nd Fuji 5 Lakes 100 km Challenge	100,00	×3
✓ 8	27/7/2014	21. Ultramarathon Okumusashi	77,00	×2
✓ 9	5/8/2012	19. Ultramarathon Okumusashi	77,00	×2
✓ 10	30/4/2011	21st Fuji 5 Lakes 72 km Challenge	72,00	×2
✓ 11	17/10/2010	16th River Shimanto 60km	60,00	×1