Kiyomasa (玉城清政) Tamashiro

Born : 1974 Cat. M50 Ultrarunner since 2011

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

73,7%

Rank quotient ?This runner's calculation uses 61 eligible race(s): Σ(rank − 1) = 27 256; Σ finishers = 37 004. 27 256 / 37 004 × 100 = 73.66%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed63

Km — ultra races10 750 km

> 100 km25

> 160 km18

> 200 km16

> 24h3

Longest race1 550,0 km

Across Honshu Lengthwise Foot Race Special Mass Start — 2/4/2025

Km per year (ultra races)

1 340

2022

999

2023

756

2024

1 845

2025

672

2026

Race types (share of distance)

Road86,0%

Trail11,4%

Stage2,6%

Records

50 km7h53'18 100 km10h36'37 50 mi23h24'06 12 h62,70 km 24 h157,50 km

HISTORY

61 race(s) · 3 split(s) nested

Date		Race	Perf.	Rk
2026
01.08	100km	2nd Chiba Ultra Marathon 100km Run	17:08:20 h	25
23.05	24h	IAU 24h Asia and Oceania Championships Open	157.500 km	46
23.05	12h	IAU 24h Asia and Oceania Championships Open - 12h Split	91.250 km	66
29.04	207km	5th Reiheishi Michi Kyoto to Nikko - 207 km	3d 06:22:36 h	12
19.04	100km	36th Fuji 4 Lakes 100 km Challenge	13:17:54 h	939
28.03	24h	17th Jingu Gaien 24 Hour Challenge	107.762 km	74
2025
19.10	70km	32. Ultramarathon Okumusashi	7:45:43 h	100
12.10	71.5km	33th Hasetsune Cup - Japan Mountain Endurance Race	22:18:26 h	1125
02.04	1550km	Across Honshu Lengthwise Foot Race Special Mass Start	23d 06:06:43 h	10
08.03	24h	16th Jingu Gaien 24 Hour Challenge	153.346 km	54
08.03	6h	16th Jingu Gaien 24 Hour Challenge - 6h Split	51.658 km	85
08.03	12h	16th Jingu Gaien 24 Hour Challenge -12h Split	94.044 km	69
2024
20.10	70km	31. Ultramarathon Okumusashi	7:24:04 h	101
13.10	71.5km	32th Hasetsune Cup - Japan Mountain Endurance Race	20:11:41 h	1168
20.05	100km	3rd Hirosaki 100 km Ultra Run	10:36:37 h	16
30.04	514km	19th River Road Foot Race 514 km	5d 09:50:05 h	65
2023
08.10	71.5km	31th Hasetsune Cup - Japan Mountain Endurance Race	21:09:38 h	1313
04.06	78km	30. Ultramarathon Okumusashi	9:10:19 h	245
26.05	100km	2nd Hirosaki 100 km Ultra Run	11:13:30 h	13
21.04	167km	8th Ultra-Trail Mt. Fuji	41:15:35 h	1134
18.04	582km	Across Honshu R9 Foot Race	8d 09:06:19 h	20
2022
22.10	535km	Across Honshu R8 Foot Race	9d 09:13:00 h	12
03.09	121km	2nd Tone River Run Up Journey Run Upstream	21:54:29 h	38
08.08	432.7km	Across Honshu R7 Foot Race	6d 20:15:00 h	13
03.05	251km	17th River Road Foot Race 254 km	2d 09:50:44 h	57
2020
22.02	206km	10th Little Edo Oedo 205k	35:38:12 h	245
2019
06.07	80km	0. Jungle Guruguru Max - 80 km	23:24:06 h	5
03.05	254km	15th River Road Foot Race 254 km	2d 07:24:00 h	47
24.03	100km	1st Ibaraki 100k Ultra Marathon	11:53:20 h	268
2018
07.10	71.5km	26th Hasetsune Cup - Japan Mountain Endurance Race	22:41:46 h	1460
03.06	100km	6th Tokyo Shibamata 100 km	12:44:21 h	577
19.05	106km	3rd Trainic World 100 km in Sai-No-Kuni	29:36:28 h	260
22.04	100km	28th Fuji 5 Lakes 100 km Challenge	12:55:35 h	699
03.03	204km	8th Little Edo Oedo 200k	34:16:08 h	152
2017
30.04	520km	13th River Road Foot Race 520 km	5d 09:39:50 h	63
08.04	70km	12th Toda Saiko 70 km	7:49:21 h	332
2016
09.10	71.5km	24th Hasetsune Cup - Japan Mountain Endurance Race	22:17:13 h	1783
01.10	12h	1st Coedo Kawagoe Running Fest 12-hours run	62.700 km	18
19.06	100km	11. Okinoshima 100km Ultra Marathon	13:38:18 h	264
03.05	255km	12th River Road Foot Race 255 km	2d 05:37:03 h	22
27.03	100km	2nd Osaka Yodogawa 100 km Ultra Marathon	11:45:57 h	118
05.03	204km	6th Little Edo Oedo 200k	35:17:20 h	167
2015
20.11	276km	Tachibana Bay Coast 273 Ultra Marathon	2d 06:21:53 h	41
31.10	71.5km	23rd Hasetsune Cup - Japan Mountain Endurance Race	21:51:14 h	1905
27.09	100km	18th Muraoka 100 km Ultra Marathon	12:52:35 h	239
20.09	153km	18th Karisakatoge beyond Chichibu Run	24:32:28 h	128
30.08	70km	2nd Tsukuba Renjyo 70 km Road & Trail Run	11:27:00 h	249
22.06	77km	22. Ultramarathon Okumusashi	9:36:15 h	706
04.05	173km	9th Nagasaki Tachibana Gulf Coast Super Maranic 173	29:29:37 h	92
11.04	70km	10th Toda Saiko 70 km	8:16:09 h	314
29.03	100km	1st Osaka Yodogawa 100 km Ultra Marathon	12:25:44 h	323
15.03	72km	2nd Izu Trail Journey	13:43:58 h	1044
07.02	280km/3stages	Okinawa Hontō 3 days stage race	38:02:50 h	12
2014
05.10	50km	8th Madarao Forest Trails 50km	7:53:18 h	272
27.07	77km	21. Ultramarathon Okumusashi	9:51:38 h	428
02.05	250km	26. Yamaguchi 100 Hagi-O-Kan Maranic 250 km	47:11:13 h	238
12.04	70km	9th Toda Saiko 70 km	8:16:22 h	296
2013
26.04	84km	2nd Shizuoka to Yamanashi	22:54:32 h	831
2012
07.10	71.5km	20th Hasetsune Cup - Japan Mountain Endurance Race	23:10:59 h	1933
05.08	77km	19. Ultramarathon Okumusashi	11:13:06 h	909
24.06	100km road race	27. Lake Saroma 100 km Ultramarathon	12:40:07 h	1923
20.05	100km	18th Yatsugatake Nobeyama 100 km	13:56:12 h	1022
22.04	112km	22nd Fuji 5 Lakes 112 km Challenge	14:27:29 h	470
2011
16.10	100km	17th River Shimanto 100km	13:40:01 h	882

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	2/4/2025	Across Honshu Lengthwise Foot Race Special Mass Start	1 550,00	×17
✓ 2	18/4/2023	Across Honshu R9 Foot Race	582,00	×6
✓ 3	22/10/2022	Across Honshu R8 Foot Race	535,00	×6
✓ 4	30/4/2017	13th River Road Foot Race 520 km	520,00	×5
✓ 5	30/4/2024	19th River Road Foot Race 514 km	514,00	×5
✓ 6	8/8/2022	Across Honshu R7 Foot Race	432,70	×4
✓ 7	7/2/2015	Okinawa Hontō 3 days stage race (TOFR)	280,00	×3
✓ 8	20/11/2015	Tachibana Bay Coast 273 Ultra Marathon	276,00	×3
✓ 9	3/5/2016	12th River Road Foot Race 255 km	255,00	×2
✓ 10	3/5/2019	15th River Road Foot Race 254 km	254,00	×2
✓ 11	3/5/2022	17th River Road Foot Race 254 km	251,00	×2
✓ 12	2/5/2014	26. Yamaguchi 100 Hagi-O-Kan Maranic 250 km	250,00	×2
✓ 13	29/4/2026	5th Reiheishi Michi Kyoto to Nikko - 207 km	207,00	×2
✓ 14	22/2/2020	10th Little Edo Oedo 205k	206,00	×2
✓ 15	3/3/2018	8th Little Edo Oedo 200k	204,00	×2
✓ 16	5/3/2016	6th Little Edo Oedo 200k	204,00	×2
✓ 17	4/5/2015	9th Nagasaki Tachibana Gulf Coast Super Maranic 173	173,00	×1
✓ 18	21/4/2023	8th Ultra-Trail Mt. Fuji (UTMF)	167,00	×1
✓ 19	23/5/2026	IAU 24h Asia and Oceania Championships Open	157,50	×1
✓ 20	8/3/2025	16th Jingu Gaien 24 Hour Challenge	153,35	×1
✓ 21	20/9/2015	18th Karisakatoge beyond Chichibu Run	153,00	×1
✓ 22	3/9/2022	2nd Tone River Run Up Journey Run Upstream	121,00	×1
✓ 23	22/4/2012	22nd Fuji 5 Lakes 112 km Challenge	112,00	×1
✓ 24	28/3/2026	17th Jingu Gaien 24 Hour Challenge	107,76	×1
✓ 25	19/5/2018	3rd Trainic World 100 km in Sai-No-Kuni	106,00	×1
✓ 26	1/8/2026	2nd Chiba Ultra Marathon 100km Run	100,00	×1
✓ 27	19/4/2026	36th Fuji 4 Lakes 100 km Challenge	100,00	×1
✓ 28	20/5/2024	3rd Hirosaki 100 km Ultra Run	100,00	×1
✓ 29	26/5/2023	2nd Hirosaki 100 km Ultra Run	100,00	×1
✓ 30	24/3/2019	1st Ibaraki 100k Ultra Marathon	100,00	×1
✓ 31	3/6/2018	6th Tokyo Shibamata 100 km	100,00	×1
✓ 32	22/4/2018	28th Fuji 5 Lakes 100 km Challenge	100,00	×1
✓ 33	19/6/2016	11. Okinoshima 100km Ultra Marathon	100,00	×1
✓ 34	27/3/2016	2nd Osaka Yodogawa 100 km Ultra Marathon	100,00	×1
✓ 35	27/9/2015	18th Muraoka 100 km Ultra Marathon	100,00	×1
✓ 36	29/3/2015	1st Osaka Yodogawa 100 km Ultra Marathon	100,00	×1
✓ 37	24/6/2012	27. Lake Saroma 100 km Ultramarathon (JPN)	100,00	×1
✓ 38	20/5/2012	18th Yatsugatake Nobeyama 100 km	100,00	×1
✓ 39	16/10/2011	17th River Shimanto 100km	100,00	×1
✓ 40	26/4/2013	2nd Shizuoka to Yamanashi (STY)	84,00	—
✓ 41	6/7/2019	0. Jungle Guruguru Max - 80 km	80,00	—
✓ 42	4/6/2023	30. Ultramarathon Okumusashi	78,00	—
✓ 43	22/6/2015	22. Ultramarathon Okumusashi	77,00	—
✓ 44	27/7/2014	21. Ultramarathon Okumusashi	77,00	—
✓ 45	5/8/2012	19. Ultramarathon Okumusashi	77,00	—
✓ 46	15/3/2015	2nd Izu Trail Journey	72,00	—
✓ 47	12/10/2025	33th Hasetsune Cup - Japan Mountain Endurance Race	71,50	—
✓ 48	13/10/2024	32th Hasetsune Cup - Japan Mountain Endurance Race	71,50	—
✓ 49	8/10/2023	31th Hasetsune Cup - Japan Mountain Endurance Race	71,50	—
✓ 50	7/10/2018	26th Hasetsune Cup - Japan Mountain Endurance Race	71,50	—
✓ 51	9/10/2016	24th Hasetsune Cup - Japan Mountain Endurance Race	71,50	—
✓ 52	31/10/2015	23rd Hasetsune Cup - Japan Mountain Endurance Race	71,50	—
✓ 53	7/10/2012	20th Hasetsune Cup - Japan Mountain Endurance Race	71,50	—
✓ 54	19/10/2025	32. Ultramarathon Okumusashi	70,00	—
✓ 55	20/10/2024	31. Ultramarathon Okumusashi	70,00	—
✓ 56	8/4/2017	12th Toda Saiko 70 km	70,00	—
✓ 57	30/8/2015	2nd Tsukuba Renjyo 70 km Road & Trail Run	70,00	—
✓ 58	11/4/2015	10th Toda Saiko 70 km	70,00	—
✓ 59	12/4/2014	9th Toda Saiko 70 km	70,00	—
✓ 60	1/10/2016	1st Coedo Kawagoe Running Fest 12-hours run	62,70	—
61	5/10/2014	8th Madarao Forest Trails 50km	50,00	—