Kenji (沖山健司) Okiyama

Born : 1965 Cat. M60 Ultrarunner since 1990

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

118

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 ?

Australia

Austria

Canada

Czechia

Finland

France

United Kingdom

Greece

Hungary

Italy

Japan

South Korea

Netherlands

South Africa

Russia

Switzerland

Taiwan

United States

11,5%

Rank quotient ?This runner's calculation uses 94 eligible race(s): Σ(rank − 1) = 2 177; Σ finishers = 18 942. 2 177 / 18 942 × 100 = 11.49%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed94

Km — ultra races19 940 km

> 100 km65

> 160 km58

> 200 km46

> 24h52

> 48h19

Longest race762,7 km

1st Six Days in the Dome — 4/8/2014

Km per year (ultra races)

2022

579

2023

2024

694

2025

2026

Race types (share of distance)

Road70,7%

Trail20,5%

?8,8%

Wins & podiums (ultra)

🏆 Win18

🏆 Win M19

🏅 Top 337

🏅 Top 3 M39

Longest winning streak5

Current streak0

Records

50 km3h32'25 100 km7h02'43 100 mi20h56'02 6 h69,20 km 12 h65,86 km 24 h254,86 km 48 h412,91 km 6 d762,68 km

HISTORY

98 race(s) · 59 split(s) nested

Date		Race	Perf.	Rk
2026
24.01	50km	36th Miyako 50 km Ultramarathon	5:15:26 h	36
2025
03.10	48h	6. 48-Stundenlauf Aare-Insel Brugg	302.887 km	3 🥉
23.05	48h	4th Hirosaki 48h Ultra Run	291.450 km	4
26.01	100km	35th Miyako 100 km Ultramarathon	11:42:58 h	47
2024
24.02	12h	13th Taipei 12hr Ultra Marathon	65.861 km	31
24.02	50km	13th Taipei 12hr Ultra Marathon - 50km Split	5:30:11 h	12
24.02	6h	13th Taipei 12hr Ultra Marathon - 6h Split	53.593 km	14
2023
26.05	48h	2nd Hirosaki 48h Ultra Run	223.704 km	23
10.02	48h	12th Taipei 48hr Ultra Marathon	255.677 km	32
11.02	12h	12th Taipei 48hr Ultra Marathon - 12h Split	84.807 km	43
11.02	24h	12th Taipei 48hr Ultra Marathon - 24h Split	148.883 km	43
11.02	100mi	12th Taipei 48hr Ultra Marathon - 100mi Split	26:47:35 h	42
22.01	100km	33th Miyako 100 km Ultramarathon	11:32:44 h	45
2020
19.01	100km	30th Miyako 100 km Ultramarathon	11:22:21 h	99
2019
15.12	100km	4th Okinawa 100km Ultramarathon	11:53:18 h	170
18.08	6d	XIVè 6 Jours de France	572.857 km	10
03.08	24h	19th 24-hour relay & solo marathon Kobe	149.600 km	17
15.02	48h	8th Taipei 48hr Ultra Marathon	285.090 km	18
15.02	50km	8th Taipei 48hr Ultra Marathon - 50km Split	5:04:57 h	13
15.02	6h	8th Taipei 48hr Ultra Marathon - 6h Split	57.681 km	14
15.02	50mi	8th Taipei 48hr Ultra Marathon - 50mi Split	9:31:56 h	24
15.02	12h	8th Taipei 48hr Ultra Marathon - 12h Split	96.135 km	23
15.02	100km	8th Taipei 48hr Ultra Marathon - 100km Split	12:31:19 h	22
15.02	100mi	8th Taipei 48hr Ultra Marathon - 100mi Split	22:11:35 h	15
15.02	24h	8th Taipei 48hr Ultra Marathon - 24h Split	171.717 km	13
2018
10.09	6d	6^ 6 Days UMF - Italian UltraMarathon Festival	663.308 km	7
09.02	48h	7th Taipei 48hr Ultra Marathon	203.541 km	36
09.02	50km	7th Taipei 48hr Ultra Marathon - 50km Split	5:07:01 h	12
09.02	6h	7th Taipei 48hr Ultra Marathon - 6h Split	59.007 km	9
09.02	50mi	7th Taipei 48hr Ultra Marathon - 50mi Split	8:18:16 h	7
09.02	100km	7th Taipei 48hr Ultra Marathon - 100km Split	10:41:28 h	9
09.02	12h	7th Taipei 48hr Ultra Marathon - 12h Split	109.395 km	10
09.02	100mi	7th Taipei 48hr Ultra Marathon - 100mi Split	20:12:00 h	11
09.02	24h	7th Taipei 48hr Ultra Marathon - 24h Split	177.684 km	13
2017
23.09	24h	10. 24-Stundenlauf Aare-Insel Brugg	181.351 km	5
10.02	48h	6th Taipei 48hr Ultra Marathon	315.989 km	7
10.02	50km	6th Taipei 48hr Ultra Marathon - 50km Split	4:53:46 h	10
10.02	6h	6th Taipei 48hr Ultra Marathon - 6h Split	60.120 km	10
10.02	50mi	6th Taipei 48hr Ultra Marathon - 50mi Split	8:07:28 h	8
10.02	100km	6th Taipei 48hr Ultra Marathonl - 100km Split	10:22:12 h	7
10.02	12h	6th Taipei 48hr Ultra Marathon - 12h Split	114.896 km	6
10.02	100mi	6th Taipei 48hr Ultra Marathon - 100mi Split	17:16:49 h	2 🥈
10.02	24h	6th Taipei 48hr Ultra Marathon - 24h Split	213.092 km	2 🥈
15.01	100km	27th Miyako 100 km Ultramarathon	9:31:41 h	26
2016
24.09	24h	9 24-Stundenlauf Aare-Insel Brugg	207.805 km	1 🏆
18.06	24h	15. Green Charity Marathon Tokyo - Hard Run 24H	156.625 km	16
06.03	100km	2nd Nagoura Marathon 100 km	9:52:07 h	11
29.01	48h	5th Taipei 48hr Ultra Marathon	318.893 km	6
29.01	50km	5th Taipei 48hr Ultra Marathon - 50km Split	4:51:28 h	4
29.01	6h	5th Taipei 48hr Ultra Marathon - 6h Split	60.120 km	5
29.01	50mi	5th Taipei 48hr Ultra Marathon - 50mi Split	8:09:18 h	4
29.01	100km	5th Taipei 48hr Ultra Marathon - 100km Split	10:22:06 h	4
29.01	12h	5th Taipei 48hr Ultra Marathon - 12h Split	114.228 km	3 🥉
29.01	100mi	5th Taipei 48hr Ultra Marathon - 100mi Split	19:01:20 h	4
29.01	24h	5th Taipei 48hr Ultra Marathon - 24h Split	179.692 km	10
17.01	100km	26th Miyako 100 km Ultramarathon	9:37:55 h	21
2015
12.09	24h	14. Green Charity Marathon Tokyo - Hard Run 24H	172.900 km	8
06.05	6d	5th EMU 6 Day World Trophy	636.396 km	26
06.05	24h	5th EMU 6 Day World Trophy - 24h Split	174.671 km	7
06.05	48h	5th EMU 6 Day World Trophy - 48h Split	287.177 km	11
21.02	24h	VIII Endurance 24 h Ultrarun Helsinki	172.223 km	27
21.02	6h	VIII Endurance 24 h Ultrarun Helsinki - 6h Split	62.796 km	9
21.02	50mi	VIII Endurance 24 h Ultrarun Helsinki - 50mi Split	7:57:44 h	10
21.02	100km	VIII Endurance 24 h Ultrarun Helsinki - 100km Split	10:34:56 h	14
21.02	12h	VIII Endurance 24 h Ultrarun Helsinki - 12h Split	108.820 km	14
21.02	100mi	VIII Endurance 24 h Ultrarun Helsinki - 100mi Split	21:36:39 h	25
2014
04.08	6d	1st Six Days in the Dome	762.684 km	2 🥈
04.08	24h	1st Six Days in the Dome - 24h Split	203.485 km	2 🥈
04.08	48h	1st Six Days in the Dome - 48h Split	351.561 km	2 🥈
21.06	24h	13. Tokyo Challenge 24 hours	192.320 km	5
2013
11.08	6d	British Ultra Fest 6 day race	643.531 km	9
15.06	24h	12. Tokyo Challenge 24 hours	173.950 km	11
2012
22.09	24h	5. 24-Stundenlauf Aare-Insel Brugg	229.072 km	1 🏆
16.06	24h	11. Tokyo Challenge 24 hours	175.240 km	9
2011
16.04	250km	18. Sakura Michi Kokusai Nature Run	28:52:00 h	7
2009
12.12	24h	9th Soochow/Taipei 24h Ultramarathon	224.441 km	3 🥉
12.12	50km	9th Soochow/Taipei 24h Ultramarathon - 50km Split	4:27:28 h	5
12.12	100km	9th Soochow/Taipei 24h Ultramarathon - 100km Split	9:15:04 h	3 🥉
12.12	12h	9th Soochow/Taipei 24h Ultramarathon - 12h Split	126.800 km	4
2008
18.10	24h	IAU 24h WC Seoul	178.251 km	106
2007
22.09	100km	17. Akita Nairiku 100km Marathon	7:56:26 h	9
28.07	24h	IAU 24h WC 24 Drummondville	111.977 km	123
02.06	6h	5th Akiruno 6 Hour Race Japan Cup	63.489 km	5
16.03	48h	12. Brno Spring 48 Hour Indoor	412.909 km	2 🥈
16.03	24h	12. Brno Spring 48 Hour Indoor - 24h Split	254.070 km	1 🏆
14.01	100km	17th Miyako 100 km Ultramarathon	8:11:23 h	3 🥉
2006
27.08	100km	50. Tsurunuma 100 km	9:28:58 h	10
13.08	75km	13. Ultramarathon Okumusashi	7:23:55 h	59
25.06	100km	6th Nichinan Orochi 100 km Marathon	10:21:25 h	57
12.05	24h	21ème des 48 heures pédestres de Surgères - 24h Split	212.017 km	2 🥈
12.05	48h	21ème des 48 heures pédestres de Surgères	301.891 km	17
25.02	24h	IAU 24h WC Taipei Yuanshan	238.061 km	7
2005
20.11	6d	20th Cliff Young Six-Days-Colac	708.000 km	4
20.11	24h	20th Cliff Young Six-Days-Colac - 24h Split	193.200 km	4
20.11	48h	20th Cliff Young Six-Days-Colac - 48h Split	310.400 km	4
09.10	100km	6th Seoul Ultra Marathon 100 km	7:53:29 h	4
16.07	24h	IAU 24h WC Wörschach	177.704 km	99
11.06	6h	3rd Akiruno 6 Hour Race Japan Cup	69.200 km	1 🏆
18.03	48h	10. Brno Spring 48 Hour Indoor	407.343 km	1 🏆
18.03	12h	10. Brno Spring 48 Hour Indoor - 12h Split	128.250 km	2 🥈
18.03	24h	10. Brno Spring 48 Hour Indoor - 24h Split	241.750 km	1 🏆
2004
16.06	87km road race	79th Comrades Marathon - Up Run	7:32:23 h	551
28.05	48h	19ème des 48 heures pédestres de Surgères	122.144 km	23
16.05	100km	10th Yatsugatake Nobeyama 100 km	8:39:11 h	3 🥉
24.04	250km	11. Sakura Michi Kokusai Nature Run	25:30:00 h	1 🏆
2003
11.10	12h	Open race at IAU 24h WC & EC Uden - 12h Split	82.533 km	174
11.10	24h	IAU 24h WC Uden	82.533 km	135
02.05	48h	18ème des 48 heures pédestres de Surgères	317.875 km	9
05.04	24h	2nd Korea 24 Hours Race	174.400 km	4
08.03	24h	4th Soochow/Taipei 24h ultramarathon	229.135 km	6
08.03	12h	4th Soochow/Taipei 24h ultramarathon - 12h Split	138.800 km	5
2002
09.11	24h	Tokyo Gakugei University 24-hour experimental run	229.000 km	1 🏆
10.05	24h	XI. 24h 'Sutki Begom' Moskau	165.837 km	31
10.05	6h	XI. 24h 'Sutki Begom' Moskau - 6h Split	74.000 km	1 🏆
10.05	12h	XI. 24h 'Sutki Begom' Moskau - 12h Split	122.800 km	12
16.03	60km	1st Jeju City 60 km	4:29:41 h	2 🥈
02.03	24h	3rd Soochow/Taipei 24h ultramarathon	133.200 km	29
02.03	12h	3rd Soochow/Taipei 24h ultramarathon - 12h Split	133.200 km	5
2001
22.09	24h	IAU 24h WC Verona (7^ Lupatotissima 24 ore)	254.856 km	6
22.09	50km	IAU 24h WC Verona (7^ Lupatotissima 24 ore) - 50km Split	3:54:36 h	7
22.09	6h	IAU 24h WC Verona (7^ Lupatotissima 24 ore) - 6h Split	76.382 km	7
22.09	50mi	IAU 24h WC Verona (7^ Lupatotissima 24 ore) - 50mi Split	6:19:45 h	6
22.09	100km	IAU 24h WC Verona (7^ Lupatotissima 24 ore) - 100km Split	7:59:00 h	5
22.09	100mi	IAU 24h WC Verona (7^ Lupatotissima 24 ore) - 100mi Split	13:39:51 h	3 🥉
22.09	12h	IAU 24h WC Verona (7^ Lupatotissima 24 ore) - 12h Split	144.324 km	4
03.03	24h	2nd Soochow/Taipei 24h ultramarathon	209.700 km	3 🥉
2000
24.06	100mi	27th Western States 100 Mile Endurance Run	20:56:02 h	15
14.05	100km	6th Yatsugatake Nobeyama 100 km	8:27:17 h	3 🥉
15.04	250km	7. Sakura Michi Kokusai Nature Run	24:09:00 h	2 🥈
25.03	24h	Tokyo Gakugei University 24-hour experimental run	252.748 km	1 🏆
1999
31.10	24h	Tokyo Gakugei University 24-hour experimental run	50.000 km	34
24.09	245.3km	17. Spartathlon	30:45:20 h	7
22.05	24h	Les 24 heures non-stop d'Eppeville	232.093 km	2 🥈
22.05	100km	Les 24 heures non-stop d'Eppeville - 100km Split	8:29:13 h	2 🥈
17.04	250km	6. Sakura Michi Kokusai Nature Run	29:20:00 h	10
27.03	24h	Tokyo Gakugei University 24-hour experimental run	240.000 km	1 🏆
1998
25.09	245.3km	16. Spartathlon	26:13:13 h	2 🥈
18.04	250km	5. Sakura Michi Kokusai Nature Run	25:27:00 h	1 🏆
21.03	24h	Tokyo Gakugei University 24-hour experimental run	200.000 km	2 🥈
1997
02.11	24h	Tokyo Gakugei University 24-hour experimental run	150.000 km	1 🏆
26.09	245.3km	15. Spartathlon	25:55:00 h	2 🥈
14.09	50km	3rd Yatsugatake Nobeyama 50 km	3:32:25 h	2 🥈
19.04	250km	4. Sakura Michi Kokusai Nature Run	27:26:00 h	3 🥉
1996
27.09	245.3km	14. Spartathlon	35:00:00 h	41
20.04	250km	3. Sakura Michi Kokusai Nature Run	23:48:00 h	1 🏆
23.03	24h	Tokyo Gakugei University 24-hour experimental run	212.000 km	1 🏆
1995
29.09	245.3km	13. Spartathlon	29:25:36 h	5
09.09	100km	1st Yatsugatake Nobeyama 100 km	7:46:02 h	1 🏆
05.07	24h	Hiratsuka 24 hour race	213.289 km	1 🏆
22.04	250km	2. Sakura Michi Kokusai Nature Run	22:50:00 h	1 🏆
11.03	24h	Tokyo Gakugei University 24-hour experimental run	234.000 km	1 🏆
1994
05.11	24h	Tokyo Gakugei University 24-hour experimental run	136.000 km	1 🏆
23.09	245.3km	12. Spartathlon	35:19:52 h	32
1993
25.09	100km	5. Akita Nairiku 100km Marathon	7:02:43 h	2 🥈
1992
27.09	100km	4. Akita Nairiku 100km Marathon	7:37:45 h	3 🥉
1991
22.09	100km	3. Akita Nairiku 100km Marathon	7:14:45 h	1 🏆
1990
23.09	100km	2. Akita Nairiku 100km Marathon	7:20:39 h	2 🥈

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	4/8/2014	1st Six Days in the Dome	762,68	×6
✓ 2	20/11/2005	20th Cliff Young Six-Days-Colac	708,00	×6
✓ 3	10/9/2018	6^ 6 Days UMF - Italian UltraMarathon Festival	663,31	×5
✓ 4	11/8/2013	British Ultra Fest 6 day race	643,53	×5
✓ 5	6/5/2015	5th EMU 6 Day World Trophy	636,40	×5
✓ 6	18/8/2019	XIVè 6 Jours de France	572,86	×4
✓ 7	16/3/2007	12. Brno Spring 48 Hour Indoor	412,91	×3
✓ 8	18/3/2005	10. Brno Spring 48 Hour Indoor	407,34	×3
✓ 9	29/1/2016	5th Taipei 48hr Ultra Marathon	318,89	×2
✓ 10	2/5/2003	18ème des 48 heures pédestres de Surgères	317,88	×2
✓ 11	10/2/2017	6th Taipei 48hr Ultra Marathon	315,99	×2
✓ 12	3/10/2025	6. 48-Stundenlauf Aare-Insel Brugg	302,89	×2
✓ 13	12/5/2006	21ème des 48 heures pédestres de Surgères	301,89	×2
✓ 14	23/5/2025	4th Hirosaki 48h Ultra Run	291,45	×2
✓ 15	15/2/2019	8th Taipei 48hr Ultra Marathon	285,09	×2
✓ 16	10/2/2023	12th Taipei 48hr Ultra Marathon	255,68	×2
✓ 17	22/9/2001	IAU 24h WC Verona (7^ Lupatotissima 24 ore)	254,86	×2
✓ 18	25/3/2000	Tokyo Gakugei University 24-hour experimental run	252,75	×2
✓ 19	16/4/2011	18. Sakura Michi Kokusai Nature Run	250,00	×2
✓ 20	24/4/2004	11. Sakura Michi Kokusai Nature Run	250,00	×2
✓ 21	15/4/2000	7. Sakura Michi Kokusai Nature Run	250,00	×2
✓ 22	17/4/1999	6. Sakura Michi Kokusai Nature Run	250,00	×2
✓ 23	18/4/1998	5. Sakura Michi Kokusai Nature Run	250,00	×2
✓ 24	19/4/1997	4. Sakura Michi Kokusai Nature Run	250,00	×2
✓ 25	20/4/1996	3. Sakura Michi Kokusai Nature Run	250,00	×2
✓ 26	22/4/1995	2. Sakura Michi Kokusai Nature Run	250,00	×2
✓ 27	24/9/1999	17. Spartathlon	245,30	×2
✓ 28	25/9/1998	16. Spartathlon	245,30	×2
✓ 29	26/9/1997	15. Spartathlon	245,30	×2
✓ 30	27/9/1996	14. Spartathlon	245,30	×2
✓ 31	29/9/1995	13. Spartathlon	245,30	×2
✓ 32	23/9/1994	12. Spartathlon	245,30	×2
✓ 33	27/3/1999	Tokyo Gakugei University 24-hour experimental run	240,00	×2
✓ 34	25/2/2006	IAU 24h WC Taipei Yuanshan	238,06	×2
✓ 35	11/3/1995	Tokyo Gakugei University 24-hour experimental run	234,00	×1
✓ 36	22/5/1999	Les 24 heures non-stop d'Eppeville	232,09	×1
✓ 37	8/3/2003	4th Soochow/Taipei 24h ultramarathon	229,14	×1
✓ 38	22/9/2012	5. 24-Stundenlauf Aare-Insel Brugg	229,07	×1
✓ 39	9/11/2002	Tokyo Gakugei University 24-hour experimental run	229,00	×1
✓ 40	12/12/2009	9th Soochow/Taipei 24h Ultramarathon	224,44	×1
✓ 41	26/5/2023	2nd Hirosaki 48h Ultra Run	223,70	×1
✓ 42	5/7/1995	Hiratsuka 24 hour race	213,29	×1
✓ 43	23/3/1996	Tokyo Gakugei University 24-hour experimental run	212,00	×1
✓ 44	3/3/2001	2nd Soochow/Taipei 24h ultramarathon	209,70	×1
✓ 45	24/9/2016	9 24-Stundenlauf Aare-Insel Brugg	207,81	×1
✓ 46	9/2/2018	7th Taipei 48hr Ultra Marathon	203,54	×1
✓ 47	21/3/1998	Tokyo Gakugei University 24-hour experimental run	200,00	×1
✓ 48	21/6/2014	13. Tokyo Challenge 24 hours	192,32	×1
✓ 49	23/9/2017	10. 24-Stundenlauf Aare-Insel Brugg	181,35	×1
✓ 50	18/10/2008	IAU 24h WC Seoul	178,25	×1
✓ 51	16/7/2005	IAU 24h WC Wörschach	177,70	×1
✓ 52	16/6/2012	11. Tokyo Challenge 24 hours	175,24	×1
✓ 53	5/4/2003	2nd Korea 24 Hours Race	174,40	×1
✓ 54	15/6/2013	12. Tokyo Challenge 24 hours	173,95	×1
✓ 55	12/9/2015	14. Green Charity Marathon Tokyo - Hard Run 24H	172,90	×1
✓ 56	21/2/2015	VIII Endurance 24 h Ultrarun Helsinki	172,22	×1
✓ 57	10/5/2002	XI. 24h 'Sutki Begom' Moskau	165,84	×1
✓ 58	24/6/2000	27th Western States 100 Mile Endurance Run	160,93	×1
✓ 59	18/6/2016	15. Green Charity Marathon Tokyo - Hard Run 24H	156,63	×1
✓ 60	2/11/1997	Tokyo Gakugei University 24-hour experimental run	150,00	×1
✓ 61	3/8/2019	19th 24-hour relay & solo marathon Kobe	149,60	×1
✓ 62	5/11/1994	Tokyo Gakugei University 24-hour experimental run	136,00	×1
✓ 63	2/3/2002	3rd Soochow/Taipei 24h ultramarathon	133,20	×1
✓ 64	28/5/2004	19ème des 48 heures pédestres de Surgères	122,14	×1
✓ 65	28/7/2007	IAU 24h WC 24 Drummondville	111,98	—
✓ 66	26/1/2025	35th Miyako 100 km Ultramarathon	100,00	—
✓ 67	22/1/2023	33th Miyako 100 km Ultramarathon	100,00	—
✓ 68	19/1/2020	30th Miyako 100 km Ultramarathon	100,00	—
✓ 69	15/12/2019	4th Okinawa 100km Ultramarathon	100,00	—
✓ 70	15/1/2017	27th Miyako 100 km Ultramarathon	100,00	—
✓ 71	6/3/2016	2nd Nagoura Marathon 100 km	100,00	—
✓ 72	17/1/2016	26th Miyako 100 km Ultramarathon	100,00	—
✓ 73	22/9/2007	17. Akita Nairiku 100km Marathon	100,00	—
✓ 74	14/1/2007	17th Miyako 100 km Ultramarathon	100,00	—
✓ 75	27/8/2006	50. Tsurunuma 100 km	100,00	—
✓ 76	25/6/2006	6th Nichinan Orochi 100 km Marathon	100,00	—
✓ 77	9/10/2005	6th Seoul Ultra Marathon 100 km	100,00	—
✓ 78	16/5/2004	10th Yatsugatake Nobeyama 100 km	100,00	—
✓ 79	14/5/2000	6th Yatsugatake Nobeyama 100 km	100,00	—
✓ 80	9/9/1995	1st Yatsugatake Nobeyama 100 km	100,00	—
✓ 81	25/9/1993	5. Akita Nairiku 100km Marathon	100,00	—
✓ 82	27/9/1992	4. Akita Nairiku 100km Marathon	100,00	—
✓ 83	22/9/1991	3. Akita Nairiku 100km Marathon	100,00	—
✓ 84	23/9/1990	2. Akita Nairiku 100km Marathon	100,00	—
✓ 85	16/6/2004	79th Comrades Marathon - Up Run (RSA)	87,00	—
86	11/10/2003	IAU 24h WC Uden	82,53	—
87	13/8/2006	13. Ultramarathon Okumusashi	75,00	—
88	11/6/2005	3rd Akiruno 6 Hour Race Japan Cup	69,20	—
89	24/2/2024	13th Taipei 12hr Ultra Marathon	65,86	—
90	2/6/2007	5th Akiruno 6 Hour Race Japan Cup	63,49	—
91	16/3/2002	1st Jeju City 60 km	60,00	—
92	24/1/2026	36th Miyako 50 km Ultramarathon	50,00	—
93	31/10/1999	Tokyo Gakugei University 24-hour experimental run	50,00	—
94	14/9/1997	3rd Yatsugatake Nobeyama 50 km	50,00	—