Know Your Japanese Runners in Boston

The withdrawal of Kentaro Nakamoto (Yasukawa Denki), Japan's best championship marathoner of the modern era, from the Boston Marathon field with a stress fracture is a blow to what would have been the best Japanese contingent in Boston in decades.

Yuki Kawauchi (Saitama Pref. Gov't) leads the way, arriving in Boston off wins in his last four marathons:

2:10:03, Hofu Yomiuri Marathon, 12/17/17
2:18:59 CR, Marshfield New Year's Day Marathon, 1/1/18
2:11:46 CR, Kitakyushu Marathon, 2/18/18
2:14:12, Wan Jin Shi Marathon, 3/18/18

Kawauchi hopes to at least equal Suguru Osako's top 3 placing in last year's Boston, his optimism growing as the weather forecast gets worse.

Naoki Okamoto (Chugoku Denryoku) runs for what was once Japan's most successful corporate team in the marathon, his best of 2:12:31 coming 6 years ago at Lake Biwa and his fastest recent time a 2:13:33 in Tokyo last year. Okamoto earned a place in Boston by winning February's tough and hilly Ome 30 km in 1:33:09.

A high-volume marathoner like Kawauchi, Kansuke Morihashi (Raffine) won January's Katsuta Marathon in 2:16:51 to earn an invite to Boston. A month later he followed up with a PB of 2:14:25 at the Tokyo Marathon, jogging the Seoul Marathon three weeks after that in a fun run effort.

Topping the women's side is another idiosyncratic high-volume marathoner, Hiroko Yoshitomi (Memolead). Yoshitomi won the hilly Katsuta Marathon in January in 2:33:56, the second-fastest winning time in event history, then came back a week later to smash the Beppu-Oita Mainichi Marathon course record with a 2:33:00 win. A week after that she took 9th in the National Corporate Half Marathon Championships in 1:13:58. Two weeks later in Tokyo she ran 2:30:16 for 6th, cutting over a minute off her five-year-old PB. Three weeks after that, a 2:33:57 win in her hometown Saga Sakura Marathon.

Ome women's winner Maki Ashi (Kyudenko) rounds out the Japanese lineup in her marathon debut at age 24. A 1:11:12 half marathoner, Ashi ran 1:44:14 in Ome to seal up a trip to Boston. Interestingly, joining her in Boston as her coach is the just-retired Kazuhiro Maeda, a longtime rival of Kawauchi's who was part of the 2013 Moscow World Championships team alongside both Kawauchi and Nakamoto.

All-time Boston Marathon Japanese Men's Top Ten

2:09:27 - Toshihiko Seko, 1st, 1981
2:10:13 - Toshihiko Seko, 2nd, 1979
2:10:28 - Suguru Osako, 3rd, 2017
2:11:02 - Hiromi Taniguchi, 4th, 1993
2:11:32 - Kenjiro Jitsui, 6th, 2006
2:11:50 - Toshihiko Seko, 1st, 1987
2:13:15 - Takayuki Inubushi, 10th, 1998
2:13:40 - Tomoyuki Taniguchi, 5th, 1987
2:13:49 - Yoshiaki Unetani, 1st, 1969
2:13:55 - Akinori Kuramata, 11th, 1998

All-time Boston Marathon Japanese Women's Top Ten

2:24:11 - Reiko Tosa, 3rd, 2006
2:26:26 - Yoshiko Yamamoto, 2nd, 1992
2:26:39 - Yuko Arimori, 3rd, 1999
2:26:52 - Kiyoko Shimahara, 5th, 2006
2:29:24 - Nobuko Fujimura, 3rd, 1996
2:30:34 - Mitsuko Hirose, 8th, 1999
2:30:40 - Yurika Nakamura, 6th, 2010
2:31:12 - Junko Asari, 6th, 1997
2:31:31 - Kaori Tanabe, 10th, 2001
2:31:39 - Yoshiko Yamamoto, 6th, 1995

Keita Sato Joins Swoosh TC

After appearing at a Nike event on Apr. 3, U20 1500 m NR and indoor 3000 m and 5000 m NR holder Keita Sato , 22, updated his Instagram profile to announce that he is joining Nike's Swoosh TC . At the Nike event Sato said that he plans to run the 1500 m at the Apr. 11 Kanaguri Memorial Meet, then will move to the U.S. "To be successful at the global level I need to train and grow alongside world-class athletes," he said. "I have to take every day seriously in order to achieve that dream of being internationally competitive." Swoosh TC was founded last year. Its coach Mike Smith has guided many athletes to international championships, including prior to Swoosh TC's launch, with some earning medals and podium finishes under his leadership. photo © 2026 Brett Larner, all rights reserved source article: https://www.rikujyokyogi.co.jp/archives/204241/2 translated by Brett Larner

Updates on Transfers

April 1 is the start of Japan's new academic and fiscal year, and there's always a wave of transfer announcements to go with it. Some notable ones yesterday: 800 m NR holder Rin Kubo skipped university to go straight to 2023 Queens Ekiden national champion Sekisui Kagaku after her graduation from Higashi Osaka Keiai H.S. Multiple NR holder Nozomi Tanaka rejoined the Toyota Jidoshokki women's team after having left it to pursue a solo pro career as a New Balance athlete. Already on the team for this fall's Nagoya Asian Games in the 10000 m, Ririka Hironaka announced a switch from her longtime home at Japan Post to the Uniqlo women's team. Collegiate marathon record holder Asahi Kuroda joined the 2026 national champion GMO corporate team after graduating from 2026 Hakone Ekiden champ Aoyama Gakuin University last week. Hakone Ekdien First Stage CR holder Rui Aoki joins the Sumitomo Denko corporate team after running his final race for 2025 Izumo Ekiden w...

Weekend Track Roundup

There were 2 decently competitive meets in the Tokyo area this weekend. Saturday saw the new year's first edition of the Setagaya Time Trials meet. Takuma Akiyoshi took the men's 3000 m A-heat over his MABP Maverick teammate Festus Kiprono Cheruiyot with a 7:58.32 PB. Cheruiyot just held off 3rd-placer Nao Kurihara 7:59.92 to 8:00.02, with MABP runners taking the top 5 spots. The top 7 in the men's 5000 m A-heat all cleared 14 minutes. Still a 6-way race with 400 m to go, Tatsuya Maruyama of Komori Corp. came out on top in 13:48.49, with 5th-placer Kazuki Ishii of Yakult just over a second behind in 13:49.63. Lacking the gear to stay with them, new American marathon sensation Ethan Shuley fell back to 6th in 13:57.12 in his first-ever track 5000 m, holding off 7th-placer Daiki Nomimura of NTT Nishi Nihon who came up from behind to finish in 13:58.30. Sunday was the 59th edition of the Tokyo Big 6 meet between Waseda University , Meiji University , Hosei Univers...

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