Yoshiaki (石原良昭) Ishihara
ID 11983
Born : 1945 Cat. M80 Ultrarunner since 2000 JPN
42
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
104
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
27
Countries visited ?ARGArgentinaATAAntarcticaAUSAustraliaBRABrazilCHIChileCHNChinaDENDenmarkECUEcuadorEGYEgyptGEOGeorgiaGERGermanyGREGreeceISLIcelandJORJordanJPNJapanKENKenyaKORSouth KoreaMADMadagascarMARMoroccoMGLMongoliaNAMNamibiaNEPNepalNZLNew ZealandSRISri LankaSWESwedenUSAUnited StatesVIEVietnam
48,7%
Rank quotient ?This runner's calculation uses 42 eligible race(s): Σ(rank − 1) = 3 145; Σ finishers = 6 454. 3 145 / 6 454 × 100 = 48.73%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed350
Km — ultra races21 527 km
> 100 km36
> 160 km35
> 200 km32
Longest race4 175,0 km
Transeuropalauf 2012 Skagen-Gibraltar - Gesamtwertung — 19/8/2012

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Road7,9%
Trail4,0%
Stage88,1%

Wins & podiums (ultra)

🏆 Win1
🏆 Win M1
🏅 Top 31
🏅 Top 3 M1
Longest winning streak1
Current streak0

Records

50 km7h58'17100 km11h42'46100 mi34h18'00

HISTORY

165 race(s) · 5 stage(s) nested
DateRacePerf.Rk
2021
15.08 250km/6stages GEORacing the Planet - Georgia 2021 2d 03:07:05 h44
2019
18.09 230km/5stages KEN2nd For Rangers Ultra 45:14:00 h55
03.03 250km/6stages NZLRacing the Planet - New Zealand 2019 2d 12:55:39 h74
2018
29.07 250km/6stages MGL15th Gobi March Mongolia 2d 02:57:08 h164
2017
12.11 250km/6stages ARGRacing the Planet - Patagonia 2017 41:58:33 h189
2016
11–15.09 274km/5stages GERSchwarzwaldlauf 44:06:08 h63
01.05 250km/6stages NAMSahara Race Namibia 2d 02:33:30 h123
14.02 250km/6stages SRIRacing the Planet - Sri Lanka 2016 2d 01:02:10 h40
2015
26.07 250km/6stages ECURacing the Planet - Ecuador 2015 2d 04:40:45 h93
2014
31.08 250km/6stages MADRacing the Planet - Madagascar 2014 45:33:33 h89
09.02 50km JPN5th OSJ Jungle Trail 50K Amami 7:58:17 h86
2013
22.09 160mi/6stages USA2nd Grand to Grand Ultra 2d 11:18:28 h66
04.08 250km/6stages ISLRacing the Planet - Iceland 2013 44:03:17 h115
2012
21.10 48.7km ESPTranseuropalauf 2012 Etappe 64 San Pablo de Buceite - La Linea /Gibralar 5:18:58 h17
20.10 53.4km ESPTranseuropalauf 2012 Etappe 63 Ronda - San Pablo de Buceite 7:10:07 h26
19.10 62.3km ESPTranseuropalauf 2012 Etappe 62 Campillos - Ronda 7:52:33 h18
18.10 54km ESPTranseuropalauf 2012 Etappe 61 Puente Genil - Campillos 7:00:25 h22
17.10 71.3km ESPTranseuropalauf 2012 Etappe 60 Albendin - Puente Genil 8:14:17 h14
16.10 60km ESPTranseuropalauf 2012 Etappe 59 Jaen - Albendin 7:36:35 h19
15.10 50.6km ESPTranseuropalauf 2012 Etappe 58 Baeza - Jaen 5:42:23 h14
14.10 49.7km ESPTranseuropalauf 2012 Etappe 57 Villanueva Del Arzobispo - Baeza 5:32:27 h14
13.10 64km ESPTranseuropalauf 2012 Etappe 56 Villapalacios - Villanueva Del Arzobispo 7:19:38 h13
12.10 55.1km ESPTranseuropalauf 2012 Etappe 55 Lezuza - Villapalacios 6:02:45 h13
11.10 57.4km ESPTranseuropalauf 2012 Etappe 54 Tarazona de la Mancha - Lezuza 6:53:54 h15
10.10 39km ESPTranseuropalauf 2012 Etappe 53 Motilla Del Palancar - Tarazona de la Mancha 4:01:58 h14
09.10 76km ESPTranseuropalauf 2012 Etappe 52 Canate - Motilla Del Palancar 9:15:12 h15
08.10 77.3km ESPTranseuropalauf 2012 Etappe 51 Teruel - Canete 9:12:46 h14
07.10 69.6km ESPTranseuropalauf 2012 Etappe 50 Escucha - Teruel 9:26:19 h24
06.10 60.5km ESPTranseuropalauf 2012 Etappe 49 Calanda - Escucha 7:41:46 h15
05.10 44.4km ESPTranseuropalauf 2012 Etappe 48 Caspe - Calanda 5:18:07 h15
04.10 82.1km ESPTranseuropalauf 2012 Etappe 47 Lleida - La Bordeta - Caspe 10:06:22 h16
03.10 66.7km ESPTranseuropalauf 2012 Etappe 46 Guissona - Lleida - La Bordeta 8:03:37 h16
02.10 75.5km ESPTranseuropalauf 2012 Etappe 45 Berga - Guissona 9:06:06 h15
01.10 55.6km FRATranseuropalauf 2012 Etappe 44 St-Joan-de-Les-Abadesses - Berga 6:31:12 h11
30.09 65.1km FRATranseuropalauf 2012 Etappe 43 Arles-Sur-Tech - St-Joan-de-Les-Abadesses 8:41:15 h21
29.09 54.3km FRATranseuropalauf 2012 Etappe 42 Estagel - Arles-Sur-Tech 6:31:10 h16
28.09 65km FRATranseuropalauf 2012 Etappe 41 Lezignan-Corbieres - Estagel 7:55:31 h16
27.09 50.8km FRATranseuropalauf 2012 Etappe 40 St-Pons-de-Thomieres - Lezignan-Corbieres 6:28:32 h20
26.09 72.4km FRATranseuropalauf 2012 Etappe 39 St-Sernin-sur-Rance - St-Pons-de-Thomieres 10:23:31 h21
25.09 54.8km FRATranseuropalauf 2012 Etappe 38 Cassagnes-Begonhes - St-Sernin-sur-Rance 7:14:05 h19
24.09 57.8km FRATranseuropalauf 2012 Etappe 37 St.Cyprien sur Dourdou - Cassagnes-Begonhes 7:36:05 h17
23.09 68.8km FRATranseuropalauf 2012 Etappe 36 Jussac - St.Cyprien sur Dourdou 9:38:22 h23
22.09 62.8km FRATranseuropalauf 2012 Etappe 35 Mauriac - Jussac 8:42:03 h21
21.09 52.8km FRATranseuropalauf 2012 Etappe 34 Meymac - Mauriac 7:11:11 h21
20.09 72.6km FRATranseuropalauf 2012 Etappe 33 Bourganeuf - Meymac 9:34:57 h14
19.09 62.1km FRATranseuropalauf 2012 Etappe 32 St-Sulpice-les-Feuilles - Bourganeuf 8:51:02 h21
18.09 67.5km FRATranseuropalauf 2012 Etappe 31 La Chatre - St-Sulpice-les-Feuilles 8:52:22 h16
17.09 61km FRATranseuropalauf 2012 Etappe 30 Charenton-Du-Cher - La Chatre 7:56:37 h15
16.09 73km FRATranseuropalauf 2012 Etappe 29 Guerigny - Charenton-Du-Cher 10:34:48 h28
15.09 83.3km FRATranseuropalauf 2012 Etappe 28 Avallon - Guerigny 11:13:02 h17
14.09 83km FRATranseuropalauf 2012 Etappe 27 Saint-Seine-l Abbaye - Avallon 11:18:16 h18
13.09 55.4km FRATranseuropalauf 2012 Etappe 26 Saint-Seine-sur-Vingeanne - Saint-Seine-l Abbaye 7:11:30 h19
12.09 48.3km FRATranseuropalauf 2012 Etappe 25 Noidans-le-Ferroux - Saint-Seine-sur-Vingeanne 6:14:42 h16
11.09 79.5km FRATranseuropalauf 2012 Etappe 24 Valdoie - Noidans-le-Ferroux 11:20:38 h26
10.09 82.6km GERTranseuropalauf 2012 Etappe 23 Bad Krozingen - Valdoie 11:53:34 h25
09.09 74.5km GERTranseuropalauf 2012 Etappe 22 St.Georgen - Bad Krozingen 11:04:41 h27
08.09 58km GERTranseuropalauf 2012 Etappe 21 Nordstetten - St.Georgen 8:11:07 h23
07.09 58km GERTranseuropalauf 2012 Etappe 20 Malmsheim - Nordstetten 8:41:54 h25
06.09 62.5km GERTranseuropalauf 2012 Etappe 19 Frankenbach - Malmsheim 9:05:00 h22
05.09 65.2km GERTranseuropalauf 2012 Etappe 18 Assamstadt - Frankenbach 10:02:19 h26
04.09 73km GERTranseuropalauf 2012 Etappe 17 Dettelbach - Assamstadt 10:59:53 h27
03.09 81.6km GERTranseuropalauf 2012 Etappe 16 Zeitlofs - Dettelbach 11:40:46 h24
02.09 70km GERTranseuropalauf 2012 Etappe 15 Queck - Zeitlofs 9:50:13 h21
01.09 64.3km GERTranseuropalauf 2012 Etappe 14 Waldkappel - Queck 9:57:22 h26
31.08 68.3km GERTranseuropalauf 2012 Etappe 13 Ebergötzen - Waldkappel 10:32:15 h25
30.08 76km GERTranseuropalauf 2012 Etappe 12 Gebhardshagen - Ebergötzen 11:21:08 h26
29.08 71.4km GERTranseuropalauf 2012 Etappe 11 Stüde - Gebhardshagen 10:44:28 h29
28.08 76.9km GERTranseuropalauf 2012 Etappe 10 Bienenbüttel - Stüde 11:29:37 h27
27.08 79km GERTranseuropalauf 2012 Etappe 9 Ahrensburg - Bienenbüttel 12:26:30 h31
26.08 70.3km GERTranseuropalauf 2012 Etappe 8 Hohenwestedt - Ahrensburg 11:26:52 h36
25.08 74km DENTranseuropalauf 2012 Etappe 7 Eggebek - Hohenwestedt 11:16:32 h33
24.08 78.5km DENTranseuropalauf 2012 Etappe 6 Haderslev - Eggebek 11:31:26 h27
23.08 72.2km DENTranseuropalauf 2012 Etappe 5 Uldum - Haderslev 10:20:18 h31
22.08 70.9km DENTranseuropalauf 2012 Etappe 4 Bjerringbro - Uldum 10:55:16 h38
21.08 65.7km DENTranseuropalauf 2012 Etappe 3 Stovring - Bjerringbro 10:27:42 h42
20.08 63.5km DENTranseuropalauf 2012 Etappe 2 Oster Vra - Stovring 9:08:21 h35
19.08 56km DENTranseuropalauf 2012 Etappe 1 Skagen - Oster Vra 7:41:41 h37
19.08 4175km/64stages DENTranseuropalauf 2012 Skagen-Gibraltar - Gesamtwertung 23d 15:44:48 h19
13.05 250km/6stages JORRacing the Planet - Jordan 2012 46:12:38 h72
2011
20.11 250km/6stages NEPRacing the Planet - Nepal 2011 42:14:25 h66
27.08 35.2mi USALA-NY Footrace, Stage 70 W. Orange, NY - New York, NY 9:21:25 h12
26.08 48mi USALA-NY Footrace, Stage 69 Washington, NJ - W. Orange NY 11:43:30 h10
25.08 51.1mi USALA-NY Footrace, Stage 68 Kutztown, NJ - Washington, NJ 13:32:29 h9
24.08 50.6mi USALA-NY Footrace, Stage 67 Lancaster, PA - Kutztown NJ 12:02:12 h12
23.08 26.9mi USALA-NY Footrace, Stage 66 York, PA - Lancaster, PA 7:14:24 h11
22.08 48.8mi USALA-NY Footrace, Stage 65 Waynesboro, PA - York, PA 12:16:14 h11
21.08 46.2mi USALA-NY Footrace, Stage 64 Hancock, PA - Waynesboro, PA 11:04:34 h8
20.08 50.7mi USALA-NY Footrace, Stage 63 Frostburg, MD - Hancock PA 12:48:30 h11
19.08 51.1mi USALA-NY Footrace, Stage 62 Uniontown, MD - Frostburg, MD 12:54:20 h10
18.08 49mi USALA-NY Footrace, Stage 61 Washington, PA - Uniontown MD 11:59:18 h8
17.08 50.3mi USALA-NY Footrace, Stage 60 Morristown, PA - Washington, PA 13:25:20 h12
16.08 58.4mi USALA-NY Footrace, Stage 59 Zanesville, OH - Morristown PA 13:49:00 h12
15.08 51.8mi USALA-NY Footrace, Stage 58 Reynoldsville, OH - Zanesville, OH 12:40:16 h10
14.08 42.6mi USALA-NY Footrace, Stage 57 South Vienna, OH - Reynoldsville, OH 10:28:17 h12
13.08 48.5mi USALA-NY Footrace, Stage 56 Crossing US40/Arlington R, OH - South Vienna, OH 12:36:40 h11
12.08 53.8mi USALA-NY Footrace, Stage 55 Dunreith, OH - Crossing US40/Arlington R, OH 13:28:04 h9
11.08 45.7mi USALA-NY Footrace, Stage 54 Indianapolis, OH - Dunreith, OH 12:13:56 h12
10.08 52mi USALA-NY Footrace, Stage 53 Rockville, OH - Indianapolis, OH 12:44:30 h8
09.08 57.9mi USALA-NY Footrace, Stage 52 Tuscola, OH - Rockville, OH 12:52:48 h6
08.08 41.8mi USALA-NY Footrace, Stage 51 Decatur, IL - Tuscola OH 9:57:26 h8
07.08 54.3mi USALA-NY Footrace, Stage 50 New Berlin, IL - Decatur, IL 13:58:17 h9
06.08 42.4mi USALA-NY Footrace, Stage 49 Pittsfield, IL - New Berlin, IL 11:25:46 h11
05.08 47.2mi USALA-NY Footrace, Stage 48 Hannibal, IL - Pittsfield, IL 12:08:02 h11
04.08 45mi USALA-NY Footrace, Stage 47 Bowling Green, MO - Hannibal IL 10:41:55 h7
03.08 54.9mi USALA-NY Footrace, Stage 46 Hermann, MO - Bowling Green, MO 13:14:45 h7
02.08 29.9mi USALA-NY Footrace, Stage 45 Owensville, MO - Hermann, MO 7:22:07 h12
01.08 29.1mi USALA-NY Footrace, Stage 44 St James, MO - Owensville, MO 6:56:20 h8
31.07 41.3mi USALA-NY Footrace, Stage 43 St Robert, MO - St James, MO 10:56:53 h8
30.07 51.6mi USALA-NY Footrace, Stage 42 Philipsburg, MO - St Robert, MO 13:16:41 h8
29.07 47.9mi USALA-NY Footrace, Stage 41 Springfield, MO - Philipsburg, MO 12:01:48 h10
24.07 49.8mi USALA-NY Footrace, Stage 36 Pawhuska, OK - Oolagah, OK 13:34:10 h9
23.07 45.2mi USALA-NY Footrace, Stage 35 Ponca City, OK - Pawhuska, OK 11:55:42 h8
22.07 42mi USALA-NY Footrace, Stage 34 Medford, OK - Ponca City, OK 11:21:13 h11
21.07 52.3mi USALA-NY Footrace, Stage 33 Alva, OK - Medford, OK 14:23:33 h7
20.07 47.5mi USALA-NY Footrace, Stage 32 Crossing Hwy 64/N1980, OK - Alva, OK 11:33:37 h6
19.07 32.1mi USALA-NY Footrace, Stage 31 Hwy Crossing 412/283, OK - Crossing Hwy 64/N1980, OK 8:18:20 h9
14.07 54.8mi USALA-NY Footrace, Stage 26 Point of Rocks Rest Area, NM - Clayton OK 14:43:20 h12
13.07 53.6mi USALA-NY Footrace, Stage 25 Cimarron, NM - Point of Rocks Rest Area, NM 13:37:20 h12
12.07 37.2mi USALA-NY Footrace, Stage 24 Palo Flechado Pass, NM - Cimarron, NM 9:54:35 h14
11.07 46.9mi USALA-NY Footrace, Stage 23 Velarde, NM - Palo Flechado Pass, NM 13:14:15 h12
10.07 38.5mi USALA-NY Footrace, Stage 22 Abiquiu Lake, NM - Velarde, NM 10:42:44 h11
09.07 51.4mi USALA-NY Footrace, Stage 21 Cuba, NM - Abiquiu Lake, NM 14:22:13 h13
08.07 54.2mi USALA-NY Footrace, Stage 20 Pueblo Pintado, NM - Cuba, NM 15:04:10 h13
07.07 40mi USALA-NY Footrace, Stage 19 Crownpoint, NM - Pueblo Pintado, NM 10:42:40 h13
06.07 41.3mi USALA-NY Footrace, Stage 18 Gas Station on Rd 491, NM - Crownpoint, NM 11:26:42 h12
05.07 44.6mi USALA-NY Footrace, Stage 17 Kinlichee, NM - Gas Station on Rd 491, NM 11:47:01 h11
04.07 48mi USALA-NY Footrace, Stage 16 Indian Wells, AZ - Kinlichee NM 12:48:48 h11
03.07 40.9mi USALA-NY Footrace, Stage 15 Birdspring, AZ - Indian Wells, AZ 11:16:45 h11
02.07 53.1mi USALA-NY Footrace, Stage 14 Flagstaff, AZ - Birdspring, AZ 13:55:40 h11
01.07 40.5mi USALA-NY Footrace, Stage 13 Williams, AZ - Flagstaff, AZ 10:51:35 h12
30.06 30.3mi USALA-NY Footrace, Stage 12 Ash Fork, AZ - Williams, AZ 8:03:18 h12
29.06 30.7mi USALA-NY Footrace, Stage 11 Seligman, AZ - Ash Fork, AZ 7:54:17 h10
28.06 45.9mi USALA-NY Footrace, Stage 10 Truxton, AZ - Seligman, AZ 12:05:00 h9
27.06 42.3mi USALA-NY Footrace, Stage 9 Kingman, AZ - Truxton, AZ 11:11:46 h8
26.06 51.3mi USALA-NY Footrace, Stage 8 Needles, AZ - Kingman, AZ 13:22:40 h7
24.06 39.8mi USALA-NY Footrace, Stage 6 Amboy, CA - Fenner, CA 10:41:45 h8
21.06 47.4mi USALA-NY Footrace, Stage 3 Hesperia, CA - Barstow, CA 13:31:46 h13
20.06 48.9mi USALA-NY Footrace, Stage 2 Norco, CA - Hesperia, CA 13:52:13 h12
19.06 45.7mi USALA-NY Footrace, Stage 1 Huntington Beach, CA - Norco, CA 11:35:47 h12
2010
07.10 222km/6stages BRAJungle Marathon, 222 km in 6 Etappen 47:32:00 h24
25.04 250km/6stages AUSRacing the Planet - Australia 2010 2d 11:38:33 h68
2009
17.05 250km/6stages NAMRacing the Planet - Namibia 2009 2d 07:03:28 h88
2008
18.02 250km/6stages VIERacing the Planet - Vietnam 2008 46:29:40 h28
2007
23.11 4d ATA2° The Last Desert Antarctica 102.950 km7
2006
29.10 250km/6stages EGYSahara Race Egypt 36:54:55 h12
08.10 53km JPNAdatara Ultra Run 8:05:32 h15
23.07 250km/6stages CHI2nd Atacama Crossing 45:32:25 h38
30.06 100km SWE8. Lapland Ultra 13:00:38 h23
28.05 250km/6stages CHNGobi March China 35:51:18 h21
2005
25.09 250km/6stages EGYSahara Race Egypt 42:46:24 h31
24.04 250km/6stages CHNGobi March China 2d 03:06:38 h35
12.03 200km KOR4th Jeju-do around 200 km 35:02:00 h72
2004
02.05 250km JPN16. Yamaguchi 100 Hagi-O-Kan Maranic 250 km 44:55:23 h69
17.01 100mi USA4th HURT 100 Endurance Run 100 Mile 34:18:00 h12
2003
19.10 100km JPN9th River Shimanto 100km 12:08:21 h536
13.08 215km/5stages JPN1st Panorama trail run 42:11:00 h1 🏆
02.05 250km JPN15. Yamaguchi 100 Hagi-O-Kan Maranic 250 km 42:05:46 h23
19.04 250km JPN10. Sakura Michi Kokusai Nature Run 34:54:00 h44
22.03 200km KOR2nd Jeju-do around 200 km 30:50:00 h17
2002
27.09 245.3km GRE20. Spartathlon 35:26:51 h77
02.05 250km JPN14. Yamaguchi 100 Hagi-O-Kan Maranic 250 km 43:01:31 h22
2001
20.06 100km MGL3rd Mongolia Sunrise to Sunset 15:21:00 h8
2000
15.10 100km JPN7th River Shimanto 100km 11:42:46 h282
02.05 250km JPN12. Yamaguchi 100 Hagi-O-Kan Maranic 250 km 47:33:41 h81
04.04 220km/6stages MAR15. Marathon des Sables 38:13:06 h195