Katsuhiro (田中克祐) Tanaka
Born : 1971 Cat. M55 Ultrarunner since 1994 JPN
80
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
110
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
13
Countries visited ?AUSAustraliaCZECzechiaFINFinlandFRAFranceGERGermanyGREGreeceHUNHungaryITAItalyJPNJapanNEDNetherlandsNZLNew ZealandTPETaiwanUSAUnited States
22,7%
Rank quotient ?This runner's calculation uses 96 eligible race(s): Σ(rank − 1) = 2 118; Σ finishers = 9 322. 2 118 / 9 322 × 100 = 22.72%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed96
Km — ultra races18 460 km
> 100 km57
> 160 km47
> 200 km33
> 24h38
> 48h11
Longest race885,0 km

Km per year (ultra races)

2022
593
5 races
2023
331
2 races
2024
908
3 races
2025
147
2 races
2026

Race types (share of distance)

Road70,7%
Trail16,2%
?13,1%

Wins & podiums (ultra)

🏆 Win3
🏆 Win M3
🏅 Top 316
🏅 Top 3 M16
Longest winning streak1
Current streak0

HISTORY

103 race(s) · 50 split(s) nested
DateRacePerf.Rk
2026
19.04 70km JPN17th 70 km Ultra Maranic Osaka 8:53:06 h101
28.03 12h JPN17th Jingu Gaien 12 Hour Ultramarathon 76.824 km15
2025
12.10 24h JPN3rd Aizu Yanaizu Akabeko Marathon - 24h 122.850 km16
03.05 6d CZE4th K6 Czech Ultramarathon Festival - 6d 566.092 km11
21.02 48h TPE14th Taipei 48hr Ultra Marathon 219.252 km43
2024
30.03 60km JPN4th Tama River Clear Stream Marathon 60km 7:16:42 h15
23.02 48h TPE13th Taipei 48hr Ultra Marathon 271.382 km28
2023
10.06 12h JPN1st Aizu Yanaizu Akabeko Marathon - 12h 89.859 km17
03.05 70km JPN31. Mukogawa Yurikamome Ultra Marathon 7:35:17 h134
23.04 70km JPN14th 70 km Ultra Maranic Osaka 7:49:55 h52
11.03 12h JPN15th Jingu Gaien 12 Hour Challenge 100.667 km8
10.02 48h TPE12th Taipei 48hr Ultra Marathon 262.588 km30
2019
18.08 6d FRAXIVè 6 Jours de France 663.523 km5
26.04 6d USA22nd Sri Chinmoy 6 Day Race 670.774 km2 🥈
23.02 24h FINXII Endurance 24 h Ultrarun Espoo 145.705 km57
2018
10.11 24h JPN13th Jingu Gaien 24 Hour Challenge 180.460 km55
02.09 100km JPN35. Tsuruoka 100km Marathon 10:55:56 h9
06.05 59km HUN3. Futás a koraszülöttekért 6:32:29 h8
2017
11.11 24h JPN12th Jingu Gaien 24 Hour Challenge 197.086 km38
03.09 100km JPN34. Tsuruoka 100km Marathon 10:48:45 h13
25.02 24h FINX Endurance 24 h Ultrarun Helsinki 197.794 km13
2016
17.12 24h JPN11th Jingu Gaien 24 Hour Challenge 195.116 km37
27.02 24h FINIX Endurance 24 h Ultrarun Helsinki 171.368 km35
2015
05.09 100km JPN32. Tsuruoka 100km Marathon 9:45:29 h7
06.05 6d HUN5th EMU 6 Day World Trophy 542.538 km33
21.02 24h FINVIII Endurance 24 h Ultrarun Helsinki 167.152 km31
2014
08.11 24h JPN9th Jingu Gaien 24 Hour Challenge 144.759 km64
06.04 100km JPN65. Tsurunuma 100 km 9:57:45 h18
22.02 24h FINVII Endurance 24 h Ultrarun Helsinki 165.706 km42
2013
09.11 12h JPN8th Jingu Gaien Ultramarathon 12 Hour 96.693 km5
07.04 100km JPN63. Tsurunuma 100 km 11:14:15 h18
23.02 24h FINVI Endurance 24 h Ultrarun Helsinki 186.336 km16
2012
01.04 100km JPN61. Tsurunuma 100 km 9:31:51 h10
25.02 24h FINV Endurance 24 h Ultrarun Helsinki 174.558 km25
2011
17.12 6h JPN1st Japan 6 Hours Indoor Ultra Marathon 65.314 km2 🥈
15.10 24h JPN6th Jingu Gaien 24 Hour Challenge 166.008 km31
16.07 100km JPN60. Tsurunuma 100 km 9:45:28 h4
29.01 24h FINIV Endurance 24 h Ultrarun Helsinki 184.855 km19
2010
29.08 52km JPN58. Tsurunuma 52 km 4:43:31 h10
06.06 6d FRALes 6 jours d'Antibes 713.576 km7
04.04 100km JPN57. Tsurunuma 100 km 10:51:27 h31
30.01 24h FINIII Endurance 24 h Ultrarun Helsinki 192.705 km13
2009
12.09 24h JPN4th Jingu Gaien 24 Hour Challenge 217.867 km9
30.08 52km JPN56. Tsurunuma 52 km 4:02:58 h7
20.06 212km HUNIII. Ultrabalaton 212km 25:33:41 h13
31.05 100km JPN16th Ebisu-Daikoku 100 km Marathon 8:57:37 h12
02.05 24h ITAIAU 24h WC Bergamo (7° 24 ore del Delfino) 216.165 km26
02.05 24h ITAOpen race at IAU 24h WC & EC Bergamo (7° 24 ore del Delfino) 216.165 km29
05.04 100km JPN55. Tsurunuma 100 km 8:37:43 h3 🥉
31.01 24h FINII Endurance 24 h Ultrarun Helsinki 212.191 km5
2008
11.10 100km JPN7th Echigo Kubikino 100km Ultramarathon 8:59:36 h26
31.08 52km JPN54. Tsurunuma 52 km 4:38:13 h16
05.07 24h JPN3rd Jingu Gaien 24 Hour Challenge 213.667 km3 🥉
27.04 48h USA11th Sri Chinmoy 6 Day Race - 48h Split 254.276 km3 🥉
27.04 6d USA11th Sri Chinmoy 6 Day Race 563.270 km5
06.04 100km JPN53. Tsurunuma 100 km 8:37:31 h2 🥈
2007
01.12 24h FINI Endurance 24 h Ultrarun Helsinki 169.062 km25
26.08 52km JPN52. Tsurunuma 52 km 4:14:49 h7
30.03 24h GRE2nd 7 days Athens Int. Ultramarathon Festival - 24h Split 169.000 km2 🥈
30.03 48h GRE2nd 7 days Athens Int. Ultramarathon Festival - 48h Split 300.000 km4
30.03 6d GRE2nd 7 days Athens Int. Ultramarathon Festival - 6d Split 784.000 km2 🥈
30.03 7d GRE2nd 7 days Athens Int. Ultramarathon Festival 885.000 km2 🥈
11.02 12h FINLohja 12H K-Citymarket ultrarun 129.082 km6
2006
27.08 100km JPN50. Tsurunuma 100 km 8:30:15 h5
02.05 250km JPN18. Yamaguchi 100 Hagi-O-Kan Maranic 250 km 35:32:39 h6
02.04 100km JPN49. Tsurunuma 100 km 8:27:47 h1 🏆
14.01 12h FINLohja 12H K-Citymarket ultrarun 121.101 km9
2005
20.11 6d AUS20th Cliff Young Six-Days-Colac 814.400 km3 🥉
15.10 12h JPN17th Sri Chinmoy 12 Hour Run Tokyo 88.450 km6
28.08 52km JPN48. Tsurunuma 52 km 4:11:12 h8
15.07 48h GER12. 48-Stunden-Self-Transcendence-Lauf Köln 339.773 km2 🥈
26.06 100km JPN5th Nichinan Orochi 100 km Marathon 8:36:50 h8
03.05 140km JPN17. Yamaguchi 100 Hagi-O-Kan Maranic 140 km 22:25:25 h94
23.04 250km JPN12. Sakura Michi Kokusai Nature Run 25:15:00 h2 🥈
03.04 52km JPN47. Tsurunuma 52 km 4:07:43 h2 🥈
06.02 12h FINLohja 12H K-Citymarket ultrarun 141.087 km2 🥈
2004
23.10 6h CZEIAU 24h WC Brno - 6h Split 61.036 km79
23.10 12h CZEIAU 24h WC Brno - 12h Split 119.359 km45
23.10 24h CZEIAU 24h WC Brno 213.069 km34
29.08 52km JPN46. Tsurunuma 52 km 3:52:06 h3 🥉
20.06 100km JPN4th Nichinan Orochi 100 km Marathon 10:55:10 h54
12.06 24h JPN2nd Akiruno 24 Hour Race Japan Cup 228.697 km1 🏆
27.03 24h TPE5th Soochow/Taipei 24h ultramarathon 169.490 km27
2003
11.10 12h NEDOpen race at IAU 24h WC & EC Uden - 12h Split 122.549 km38
11.10 24h NEDIAU 24h WC Uden 223.869 km32
16.08 100km FINMasokistin Unelma 100 km 9:07:25 h6
19.04 250km JPN10. Sakura Michi Kokusai Nature Run 27:06:00 h6
06.04 52km JPN43. Tsurunuma 52 km 4:15:47 h4
2002
27.09 245.3km GRE20. Spartathlon 30:26:16 h15
23.06 100km JPN2nd Nichinan Orochi 100 km Marathon 8:19:54 h7
03.05 140km JPN14. Yamaguchi 100 Hagi-O-Kan Maranic 140 km 18:21:22 h2 🥈
20.04 250km JPN9. Sakura Michi Kokusai Nature Run 29:32:00 h11
2001
14.04 250km JPN8. Sakura Michi Kokusai Nature Run 31:34:00 h27
2000
29.09 245.3km GRE18. Spartathlon 33:25:36 h36
1999
31.10 24h JPNTokyo Gakugei University 24-hour experimental run 120.000 km16
24.09 245.3km GRE17. Spartathlon 32:38:45 h14
17.04 250km JPN6. Sakura Michi Kokusai Nature Run 32:30:00 h21
1998
25.09 245.3km GRE16. Spartathlon 33:47:58 h35
21.03 24h JPNTokyo Gakugei University 24-hour experimental run 202.000 km1 🏆
1997
26.09 245.3km GRE15. Spartathlon 34:36:00 h45
1994
31.12 100km NZLThat Dam Run 100 km 8:59:13 h15
26.06 100km JPN9. Lake Saroma 100 km Ultramarathon 8:54:24 h165
02.04 50mi USA15th American River 50 Mile Endurance Run 8:44:43 h165