It's another massive weekend of racing in Japan before championship ekiden season really hits. Proving that it's always time for track time trials, Saturday's Edion Distance Challenge meet in Osaka has high-level women's 3000 m, 5000 m and 10000 m races on the menu. 5000 m NR holder Nozomi Tanaka will take her annual stab at the 10000 m against Dolphine Omare, Tabitha Njeri Kamau, Pauline Kamulu and more, with domestic competition including Queens Ekiden First Stage winner Kana Mizumoto. Anchor stage winner Rina Sasaki leads the 5000 m A-heat with support from Lucy Nduta. Streaming starts at 12:05 p.m. local time. Complete meet schedule and entry lists here.
Sunday is the 50th running of the world's #1 10-miler, the Kumamoto Kosa Road Race. This is really the last big tuneup for the New Year Ekiden and Hakone Ekiden, and every year it's fast up front with the kind of depth of quality you see in the bigger half marathon and marathons. There are too many people to list everyone good, but top names include Vincent Yegon, Benard Langat, Evans Keitany, Tatsuhiko Ito, Naoki Koyama, Ichitaka Yamashita and Nagiya Mori. There are also high-level women's 5 km and high school boys' 10 km races, with 2026 World XC team member Yuzu Nishide leading the women's field. Streaming starts at 10:10 a.m.
But Sunday is really about marathons. Just south of Tokyo is the almost 20,000-runner Shonan International Marathon, not a race with an elite field but one of Japan's biggest and the Paris Marathon's inspiration for its shift to more ecological-friendly drink stations. Squaring off head-to-head for reasons that are complicated are the Fukuoka International Marathon and Hofu Yomiuri Marathon. Fukuoka is traditionally the higher-level race, but at this point it's almost even. Both races have a World Athletics elite label, Fukuoka having downgraded from gold, and both count equally in qualification for the MGC Race 2027 Olympic marathon trials with qualifying spots for the first 6 Japanese men as long as they're under 2:09:00. Hofu also has a spot for the top Japanese woman if she's under 2:27:00, so in one way at least there's an argument to be made that Hofu is a step ahead.
Sub-2:10 Japanese men in Fukuoka:
Kyohei Hosoya - 2:05:58 (Osaka 2025)
Shunya Kikuchi - 2:06:06 (Osaka 2025)
Yusuke Nishiyama - 2:06:31 (Tokyo 2024)
Tatsuya Maruyama - 2:07:06 (Tokyo 2025)
Tetsuya Yoroizaka - 2:08:34 (Shanghai 2024)
Takumi Iwata - 2:09:28 (Osaka 2025)
And in Hofu:
Kazuya Nishiyama - 2:06:45 (Osaka 2023)
Daisuke Doi - 2:06:54 (Osaka 2024)
Yuta Koyama - 2:07:57 (Osaka 2023)
Daiji Kawai - 2:08:32 (Osaka 2023)
Yuki Kawauchi - 2:08:32 (Hofu 2023)
Ryoma Takeuchi - 2:08:38 (Gold Coast 2025)
Masatoshi Sakata - 2:09:08 (Osaka 2025)
Hidekazu Hijikata - 2:09:10 (Osaka 2024)
Masashi Nonaka - 2:09:11 (Osaka 2024)
Takayuki Iida - 2:09:34 (Prague 2023)
Kazuki Muramoto - 2:09:41 (Beppu-Oita 2023)
So Fukuoka has a bit higher-level and fresher people, with more candidates in Hofu but only one, Ryoma Takeuchi, at his peak. Internationals in Hofu are limited to Japan-based Africans Derese Workneh, Bedan Karoki and Patrick Mathenge, with Djibouti's Ibrahim Hassan leading 5 internationals actually coming to Fukuoka from abroad plus another 2 Japan-based Kenyans including 2-time winner Michael Githae.
Mizuki Nishimura set a 1:41:42 CR at February's Kumanichi 30 km and is debuting in Hofu, the only real candidate to hit the 2:27:00 Olympic trials standard. If you've got a Japanese VPN you can probably pick up the official broadcasts on TVer and Hulu, Hofu starting at 10:40 a.m. and Fukuoka at 12:10 p.m. Hofu's leaderboard will be here, with live results from Fukuoka here.
And wrapping the day is 5000 m NR holder Suguru Osako, fresh off debuting his new tattoo on social media ahead of the Valencia Marathon. The JAAF doesn't care about placing or competitive ability when it comes to international races, saying only that if Japanese athletes run abroad and want to qualify for the Olympic trials they have to do it in a World Athletics platinum label race and run 2:06:30 or better for men, 2:23:30 or better for women. So, it's 2:06:30 or nothing for Osako, a time he last ran almost 3 years ago at the 2023 Tokyo Marathon. He's run 61 minutes in both of his half marathons this year, not that far off his best, so it wouldn't be a big surprise to see him pull it off.
© 2025 Brett Larner, all rights reserved
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