Skip to main content

Kariuki Sets Okukuma Half Marathon Course Record

by Brett Larner

In a period that sees many of Japan's long-standing small elite races folding or changing to mass-participation formats the Okukuma Road Race, launched in 2013 in one of the most conservative areas of southern Japan, is something of a throwback, a small race of around 100 men with an accompanying high school boys' 10 km and women restricted to 5 km because, well, that's how they roll in Kumamoto.

In its third edition, Kyushu-based Kenyan John Kariuki (Daiichi Kogyo Univ.) led the top four at the Okukuma Half Marathon under last year's course record for the win in a new record of 1:03:16.  Essentially unchallenged, Kariuki had a lead of around 10 seconds at 10 km and held that margin to win by 13 seconds over London Olympics marathoner Ryo Yamamoto (SGH Group) with Shun Inoura, an alternate for Komazawa University's Hakone Ekiden runner-up team, another 3 seconds back in 1:03:32.

Still recovering from a sprained ankle a few weeks back, Asian Games marathon bronze medalist Yuki Kawauchi (Saitama Pref. Gov't) was 9th in 1:04:44 after running the early part of the race with Yamamoto.

Results were less noteworthy at the 39th edition of the Chiba Marine Half Marathon east of Tokyo.  Yuki Iwasaki (Sekino Reform) took a close men's race over Shota Yamada (Chiba T&F Assoc.) in 1:06:16 to 1:06:17, while Kyoko Koyama led a Juntendo University sweep of the top four places in the women's race in 1:18:40.  The best result in Chiba came in the women's 10 km, where Chiaki Morikawa (Starts) won in 34:28.

3rd Okukuma Road Race
Kumagun, Kumamoto, 1/18/15
complete results coming shortly

Men's Half Marathon
1. John Kariuki (Kenya/Daichi Kogyo Univ.) - 1:03:16 - CR
2. Ryo Yamamoto (SGH Group) - 1:03:29 (CR)
3. Shun Inoura (Komazawa Univ.) - 1:03:32 (CR)
4. Rei Hashimoto (Toyo Univ.) - 1:03:35 (CR)
5. Daisuke Watanabe (Toyota Kyushu) - 1:03:37
6. Naoki Hasegawa (Toyo Univ.) - 1:03:41
7. Shun Yamamura (Aoyama Gakuin Univ.) - 1:03:43
8. Ryusei Yoshinaga (Aoyama Gakuin Univ.) - 1:03:55
9. Yuki Kawauchi (Saitama Pref. Gov't) - 1:04:44
10. Kenichi Kawano (Kurosaki Harima) - 1:04:50

H.S. Boys' 10 km
1. Satoshi Nakao (Chiharadai H.S.)

Women's 5 km
1. Yuki Yokoishi (Shiraishi H.S.) - 16:42

39th Chiba Marine Half Marathon
Chiba, 1/18/15
complete results coming eventually

Women's Half Marathon
1. Kyoko Koyama (Juntendo Univ.) - 1:18:40
2. Saori Imamura (Juntendo Univ.) - 1:19:56
3. Miki Kobayashi (Juntendo Univ.) - 1:20:07

Men's Half Marathon
1. Yuki Iwasaki (Sekino Reform) - 1:06:16
2. Shota Yamada (Chiba T&F Assoc.) - 1:06:17
3. Yatsuya Itagaki (JP Post) - 1:06:31

Women's 10 km
1. Chiaki Morikawa (Starts) - 34:28

Men's 10 km
1. Jun Sugimura (Heisei Kokusai Univ.) - 31:41

(c) 2015 Brett Larner
all rights reserved

Comments

Most-Read This Week

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

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...

Kipyegon and Yamaguchi Win Kanto Regionals D1 and D2 Half Marathon Titles

The men's half marathon component of the Kanto Region University Track and Field Championships relocated this year away from the main part of the meet in May to be held as part of the Yaizu Minato Half Marathon in Shizuoka, a longstanding part of the collegiate half marathon calendar with its Pair Marathon team competition. At Kanto Regionals D1 and D2 teams are usually split into 2 separate starts with a time stagger and run on a loop course. This time around they started together, giving people who wouldn't usually be racing together the chance to go head-to-head. Soka University 3rd-year Shoki Yamaguchi was the only one to try to go with Yamanashi Gakuin University 4th-year Brian Kipyegon , both hitting 5 km in 14:28 before Kipyegon said goodbye. Kipyegon rolled on solo to take the D1 title in 1:01:23, just 9 seconds off his own meet record on a different course. Yamaguchi hung on well enough for 1st in the D2 field in 1:02:55, runner-up Kuranosuke Yoshida of last year...