Skip to main content

Ichiyama Runs 8th-Fastest JPN Time Ever to Win National Corporate Half


Following up last weekend's NR-breaking Marugame Half where the top 24 men went under 61 minutes, today's National Corporate Half Marathon delivered another big one. Yuma Nishizawa (Toyota Boshoku) and Shadrack Kipchirchir (Chudenko) broke away from the pack mid-race and opened a substantial lead, but in the last few km Tsubasa Ichiyama (Sunbelx) closed the gap and passed them by. Ichiyama took almost a minute off his PB to win in 1:00:22, the 8th-fastest time ever by a Japanese man.

Favorite Tatsuhiko Ito (Honda) closed hard to pass Nishizawa and Kipchirchir on the track but couldn't catch Ichiyama, 5 seconds behind in 2nd in 1:00:27 with Nishizawa right behind in 1:00:29 for 3rd. Coming off an injury in November that held him back at last month's New Year Ekiden, Ichiyama told JRN post-race, "This was a big confidence builder for my next race." That would be next month's Tokyo Marathon.

The top 14 men were all under 61 minutes. Compared to that the women's race was relatively conservative, with only 2 women clearing 70 minutes. Shiori Yoshizono (Tenmaya) got the win in 1:09:45, holding off Kaede Kawamura (Iwatani Sangyo) by 5 seconds. Kazuna Kanetomo (Mitsui Sumitomo Kaijo) was 3rd in 1:10:20.

Paris Olympian Yuma Yamamoto (Sekisui Kagaku) had a characteristically good one in the women's 10 km, taking the win by 30 seconds in 32:33. For the first time the National Corporate Championships featured a men's 10 km, which went to Komazawa University grad Taiyo Yasuhara (Kao) in 29:08.

National Corporate Half Marathon and 10 km Championships

Yamaguchi, 9 Feb. 2025

Men's Half Marathon
1. Tsubasa Ichiyama (Sunbelx) - 1:00:22 - PB
2. Tatsuhiko Ito (Honda) - 1:00:27
3. Yuma Nishizawa (Toyota Boshoku) - 1:00:29
4. Shadrack Kipchirchir (Chudenko) - 1:00:39
5. Tamaki Fujimoto (Logisteed) - 1:00:40
6. Hideyuki Tanaka (Toyota) - 1:00:43
7. Yoshiki Oshiro (Toyota Kyushu) - 1:00:43
8. Kyohei Hosoya (Kurosaki Harima) - 1:00:43
9. Hirotsugu Yoshikawa (Yakult) - 1:00:45
10. Ryuto Urushibata (Yasukawa Denki) - 1:00:47
11. Waweru Nganga (Chugoku Denryoku) - 1:00:48
12. Toru Kubota (Honda) - 1:00:49
13. Yusaku Nomura (Toyota) - 1:00:58
14. Kazuki Moriya (Mitsubishi Juko) - 1:00:59
15. Shunsuke Kikuchi (NTN) - 1:01:01
16. Shunta Uchida (Toyota) - 1:01:05
17. Kento Yamauchi (Kyudenko) - 1:01:06
18. Shota Nishimura (Aichi Seiko) - 1:01:08
19. Kosei Matsunami (Kurosaki Harima) - 1:01:12
20. Shoya Kawase (Honda) - 1:01:14
21. Daiki Ozawa (Fujitsu) - 1:01:15
22. Kiyoshi Koga (Yasukawa Denki) - 1:01:15
23. Tatsuya Tsunashima (YKK) - 1:01:16
24. Hironori Muramatsu (Logisteed) - 1:01:16
25. Masanori Sumida (Aichi Seiko) - 1:01:18
-----
50. Yuito Yamamoto (Subaru) - 1:02:06
75. Hiroshi Ichida (Asahi Kasei) - 1:02:54
100. Shumpei Tomita (Logisteed) - 1:03:29
125. Hiroto Ishiwata (SID Group) - 1:04:39
150. Yudai Takayama (Nittetsu Stainless) - 1:06:29

Women's Half Marathon
1. Shiori Yoshizono (Tenmaya) - 1:09:45
2. Kaede Kawamura (Iwatani Sangyo) - 1:09:50
3. Kazuna Kanetomo (Mitsui Sumitomo Kaijo) - 1:10:20
4. Yuri Mitsune (18 Ginko) - 1:10:23
5. Manami Nishiyama (Mitsui Sumitomo Kaijo) - 1:10:27
6. Akira Ozaki (Sysmex) - 1:10:49
7. Rina Shimizu (Noritz) - 1:11:14
8. Riko Iijima (SID Group) - 1:11:14
9. Wakana Itsuki (Kyudenko) - 1:11:14
10. Shiori Zama (Shimamura) - 1:11:18

Men's 10 km
1. Taiyo Yasuhara (Kao) - 29:08
2. Sosuke Yoshimura (Aisan Kogyo) - 29:15
3. Yuta Mikami (Chugoku Denryoku) - 29:24
4. Yuya Iwasaki (Osaka Gas) - 29:35
5. Nagisa Moriso (Chugoku Denryoku) - 29:43

Women's 10 km
1. Yuma Yamamoto (Sekisui Kagaku) - 32:33
2. Momoka Kawaguchi (Uniqlo) - 33:03
3. Ayu Henmi (Toyota Jidoshokki) - 33:06
4. Sara Isobe (Toyota Jidoshokki) - 33:10
5. Akari Matsumoto (Sekisui Kagaku) - 33:10
6. Momoa Yamada (Shimamura) - 33:10
7. Miu Yagi (Iwatani Sangyo) - 33:11
8. Rio Matsutani (Denso) - 33:13
9. Erina Yasui (Iwatani Sangyo) - 33:16
10. Rion Furukawa (Nitori) - 33:30

© 2025 Brett Larner, all rights reserved

Buy Me A Coffee

Comments

Most-Read This Week

Australian YouTuber Handed Lifetime Ban by Ageo City Half Marathon After Running 1:06 with Another Runner's Bib (updated)

After discussion with their race's chief JAAF referee, on Nov. 27 the organizers of the Ageo City Half Marathon handed down a lifetime ban from their event against 36-year-old Australian Matt Inglis Fox  for running the Nov. 15 race wearing the bib number of another JAAF-registered runner. The incident came to light after Fox posted on his personal Instagram account that he had run a PB of 1:06:33 and finished 203rd in Ageo with a 10 km split of 31:03, along with photos and video of himself in the race wearing a bib number beginning with 11. Fox did not appear in the results by name or in that time or place, the closest match being a 1:06:54 gross, 1:06:50 net finish time with a 31:21 10 km split for 18th place in the JAAF-registered division and 209th overall by bib number 1129, registered to a non-Japanese Tokyo-resident club runner. The club runner, Harrisson Uk , readily confirmed that he had given his bib to Fox, saying, "I gave my number to Matt. It wasn't me."...

Batt-Doyle and Strintzos Break Records at Launceston Half

Australians Isobel Batt-Doyle and Haftu Strintzos turned in record-breaking performances to win the McGrath Launceston Running Festival Peppers Silo Half Marathon in Tasmania. Running with a private male pacer, NR holder Batt-Doyle dusted the field with the fastest half marathon ever by an Australian woman on Australian soil, a 1:08:46 CR that put her 2 and a half minutes ahead of runner-up Genevieve Gregson . Last year's runner-up Yumi Yoshikawa was almost a minute back from Gregson in 3rd in 1:12:03, but was almost run down by club runner Ayaka Shimoyamada . Starting slow in her international debut, Shimoyamada moved up from 7th over the 2nd half of the race to finish 4th in 1:12:06, kicking hard in the home straight to try to catch Yoshikawa and momentarily blacking out after finishing. Kaho Onishi was 7th in 1:12:45 in her own international debut. The men's half had pacing set at 2:53/km to try to deliver the first-ever sub-61 half marathon on Australian soil. CR holde...

CHN and JPN National Records Go Down - Weekend Track Update

There weren't any Japanese athletes in action at the Rabat Diamond League meet Sunday, but 2 lower-tier domestic meets produced new national records. At the Nittai University Time Trials meet in Yokohama, Samuel Kibathi (Toyota) led the top 5 in the men's 10000 m under 28 minutes in 27:39.97. In 3rd, China's Wenjie Wang took just over a second off his own NR from the same meet last year, setting a new record of 27:47.53. His teammate Haoran Tang was 6th in a 28:27.44 PB, with the top Japanese time in the race being a 28:33.39 for 8th from Jin Yuasa (Toyota). Amazingly, Wang and Tang were back the next day on day 2 of the Nittai meet, Wang running a PB of 13:35.58 for 4th in the A-heat and Tang winning the B-heat in a PB of 13:38.80. Isaac Ndiema took the A-heat in 13:26.49, with the fastest Japanese time going to Yuhei Urano (Fujitsu) with a 13:35.94 for 5th behind Wang. Other Nittai highlights: Deborah Chemutai (Univ. Ent.) won a photo finish against Yua Nagamori ...