Skip to main content

Collegiate 5000 m and 10000 m National Champion Omwamba Wins Kumamoto Kosa 10-Miler

by Brett Larner

Alongside the Fukuoka International Marathon, Japan's southernmost main island of Kyushu hosted another major road race on Sunday, the Kumamoto Kosa 10 Mile Road Race.  The world's most competitive 10-miler by a wide margin, Kosa plays an important role for the coaches of Japan's corporate teams in helping them refine their lineups for the Jan. 1 New Year Ekiden national corporate men's championships.  Kosa has long been dominated by Martin Mathathi (Kenya/Suzuki Hamamatsu AC), who has won six times since 2003 and holds the course record of 44:51 but opted for a marathon debut in Fukuoka this year.  Despite the advantages of having Africans in the race to keep things fast among the predominantly Japanese field Kosa employs a strange format with any non-Japanese entrants segregated together in an "International Division" and given a one-minute head start.  The winner of the all-Japanese division is typically reported as the winner by the Japanese media, with only passing mention of any Africans who may have run faster.

This year Yamanashi Gakuin University first-year Enock Omwamba of Kenya, the 2012 national university 5000 and 10000 m champion and unstoppable on the fall ekiden circuit, had the honor.  Continuing his winning ways, Omwamba, along with corporate runner Alex Mwangi (Kenya/Team YKK) one of only two non-Japanese in the race, soloed his way to a 46:25.  A minute later the Japanese field started.  Tomohiro Shiiya (Team Toyota Boshoku), one of the many members of the Tepco corporate team to quit and go elsewhere following last year's Fukushima disasters, was the first Japanese athlete across the line, outrunning freshly-minuted sub-28 man Yusuke Hasegawa (Team S&B) in 46:26 to 46:31.

Shiiya was only 1 second slower than Omwamba, and both Shiiya and Hasegawa were faster than Mwangi's 46:38.  The next three Japanese men were all within 10 seconds of Mwangi, raising the question of whether everyone in the front end of the field might have run faster, or whether it might have at least been a more exciting race, if they had all been running head to head.  Omwamba and Mwangi were clearly in range ability-wise, so it is difficult to see what Shiiya, Hasegawa and the other Japanese athletes gained by not being allowed to race them even if it is not hard to see what race organizers in the conservative area may have gained.

2012 Kumamoto Kosa 10-Mile Road Race
Kosa, Kumamoto, 12/2/12
click here for complete results

1. Enock Omwamba (Kenya/Yamanashi Gakuin Univ.) - 46:25
2. Tomohiro Shiiya (Team Toyota Boshoku) - 46:26
3. Yusuke Hasegawa (Team S&B) - 46:31
4. Alex Mwangi (Kenya/Team YKK) - 46:38
5. Ryo Matsumoto (Team Shikoku Denryoku) - 46:40
6. Yuya Konishi (Team Toyota Kyushu) - 46:43
7. Kyohei Nishi (Team Kyudenko) - 46:46
8. Fumihiro Maruyama (Team Asahi Kasei) - 46:53
9. Ryuji Okada (Team Shikoku Denryoku) - 46:55
10. Masamichi Yasuda (Team Aichi Seiko) - 47:01

(c) 2012 Brett Larner
all rights reserved

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."...

Nat'l University Ekiden Updates Here

Looks like I just went over my update limit on Twitter - sorry, it's the first time I've tried to use it for this. I'll look for another option next time. In the meantime I'll add updates to the comments below. Not sure if that has a max too but I guess we'll find out. Update: Part one of the Nationals commentary can be found here .

Keita Satoh Running New Balance Fifth Avenue Mile

1500 m U20 NR holder Keita Satoh (Nike Swoosh TC) is running this weekend's New Balance Fifth Avenue Mile , the first time that a Japanese man has been invited in the race's 45-year history. In university Sato had to change focus away from middle distance to the half marathon-scale lengths of the Hakone Ekiden stages, but since graduating in March and relocating to Flagstaff he has refocused on the 1500 m, going from 3:43.19 in April in his first 1500 m in almost 4 years to 3:38.30 over the course of 5 races. Fifth Avenue will be his last race before heading back to Japan for one more track 1500 m and some down time. Men's entries with best 1500 m times in last 3 years: Stefan Nillessen (NED) - 3:29.23 (2025) Flavien Szot (FRA) - 3:30.74 (2025) Oliver Hoare (AUS) - 3:31.07 (2024) Jake Heyward (GBR) - 3:31.18 (2026) Titouan Le Grix (FRA) - 3:31.46 (2026) Romain Mornet (FRA) - 3:31.62 (2025) Adam Spencer (AUS) - 3:31.83 (2026) Pieter Sisk (BEL) - 3:31.85 (2025) Gary Martin (...