Skip to main content

Morishita-Coached Karemi Wins Kumamoto Kosa 10-Miler in 45:51 As Competitive Field Breaks World Records for Depth

by Brett Larner

Coached by Koichi Morishita, the Barcelona Olympics marathon silver medalist who turned Samuel Wanjiru into a world-beater, Jeremiah Thuku Karemi (Kenya/Team Toyota Kyushu) had a solid debut over ten miles as he won the 39th Kumamoto Kosa 10-Miler in 45:51, one of the fastest times in the world this year.  Karemi beat a massive chase pack containing many of Japan's best current track runners and marathoners by more than 40 seconds, setting both himself and Morishita's Toyota Kyushu corporate team up for a big day at next month's New Year Ekiden national championships.

In the chase pack, rookie pro Natsuki Terada (Team JR Higashi Nihon), famous for taking a wrong turn in the last 200 m of the Hakone Ekiden anchor stage as a first-year at Koku Gakuin University, showed the strength of the kick that got him back into position at Hakone by winning an at least nine-way sprint finish for 2nd in 46:33.  Yuya Konishi led three other Toyota Kyushu runners into the top ten, taking 3rd in 46:35 with 2:09:30 marathoner teammate Masato Imai 5th in 46:37 and Yuki Oshikawa 10th in 46:40.

2:08 marathoners Kazuhiro Maeda (Team Kyudenko) and Kohei Matsumura (Team Mitsubishi Juko Nagasaki) were 13th and 15th in 46:44 and 46:47, while their fellow National Team member Satoru Sasaki (Team Asahi Kasei) was 28th in 47:18.  Another 2:08 National Team member, Koji Kobayashi (Team Subaru) was 52nd in 48:04.

Altogether the field set new world records for depth, with the top 22 men breaking 47 minutes to obliterate the 15-year-old record of 13 men sub-47 set in Kosa in 1999.  51 men broke 48 minutes, likewise erasing the old record of 45 set in Kosa in 2007.

In the women's 5 km, high schooler Mao Ichiyama (Izumi Chuo H.S.) took down members of the Miyazaki Ginko corporate women's team, winning a photo finish against Miyakazi Ginko's Yuki Nakamura with both clocking 16:26.  Shoma Murakami (Kaishin H.S.) won the high school boys' 10 km by two seconds in 30:17.

39th Kumamoto Kosa 10-Mile Road Race
Kosa, Kumamoto, 12/7/14
click here for complete results

Men's 10 Miles
1. Jeremiah Thuku Karemi (Kenya/Team Toyota Kyushu) - 45:51
2. Natsuki Terada (Team JR Higashi Nihon) - 46:33
3. Yuya Konishi (Team Toyota Kyushu) - 46:35
4. Aritaka Kajiwara (Team Press Kogyo) - 46:36
5. Masato Imai (Team Toyota Kyushu) - 46:37
6. Kensuke Takezawa (Team Sumitomo Denko) - 46:37
7. Shintaro Miwa (Team NTN) - 46:37
8. Yo Yazawa (Team Nissin Shokuhin) - 46:38
9. Akinobu Murasawa (Team Nissin Shokuhin) - 46:40
10. Yuki Oshikawa (Team Toyota Kyushu) - 46:40

High School Boys' 10 km
1. Shoma Murakami (Kaishin H.S.) - 30:17
2. Yuma Yoshitake (Tosu H.S.) - 30:19
3. Takumi Saito (Miyazaki Nihon Prep H.S.) - 30:19

Women's 5 km
1. Mao Ichiyama (Izumi Chuo H.S.) - 16:26
2. Yuki Nakamura (Team Miyazaki Ginko) - 16:26
3. Kaede Shinchi (Team Miyazaki Ginko) - 16:52

(c) 2014 Brett Larner
all rights reserved

Comments

Most-Read This Week

On the Loss of the ARRS Database

At some point in the last few months I discovered that both versions of the ARRS database, the static one and the searchable version , are gone. Last week David Monti posted a link to the ARRS history of an event he covered in Race Results Weekly, I guess copying and pasting a link from last year without looking at it, and that reminded me to write something about the loss of the database. The Association of Road Racing Statisticians was basically a one-man show operated from the remote Northern California shores by Ken Young . When the site existed its intro read: The Association of Road Racing Statisticians (ARRS) is an independent, non-profit organization that collects, analyses and publishes results and statistics regarding elite distance running at distances 3000m and longer...The data of ARRS is stored in the ARRS database, which has more than 1.3 million performances from more than 240,000 races by more than 95,000 elite and sub-elite distance runners worldwide...This website ...

Multiple National Records This Weekend

Olympic and World champion Haruka Kitaguchi got the biggest headlines among Japanese athletes this weekend, overcoming a rough last year and a half that included injury and a coaching change to break her own javelin throw NR by over a meter and a half to win the inaugural WA Ultimate Championship in Budapest. U20 WR and Asian AR holder Ziyi Yan opened with a big 68.05, 0.67 m further than Kitaguchi's best-ever from back in 2023. That could have been the end, but Kitaguchi came back from a 61.15 m first attempt to throw a massive 68.92 m NR on her next one, ultimately enough for the win. She still has a long way to go to match the 18-year-old Yan's 71.74 m from May, but it was a clear statement that Kitaguchi is back. Back home at the National Corporate Track and Field Championships in Kyoto, women's pole vault NR holder Misaki Morota continued a solid comeback season of her own, bettering her NR from May by 1 cm with a 4.51 m on her first attempt. Morota took another 3...

Japan's Team Lineup in Copenhagen

Re-upping an earlier post on Japan's team lineup for this weekend's  Copenhagen World Road Running Championships . The JAAF chose not to name any women to the team in the mile. Women 5 km Kana Mizumoto (Edion) - 15:06.98 Rina Kusu (Sekisui Kagaku) - 15:10.91 Half Marathon Yumi Yoshikawa (Canon) - 1:09:14 Wakana Kabasawa (Mitsui Sumitomo Kaijo) - 1:09:20 Rina Shimizu (Noritz) - 1:09:22 Yuna Takahashi (Shimamura) - 1:09:23 Men Mile Ojiro Honda (Waseda Univ.) - 3:37.53 (1500 m) Tomoki Nakano (Toenec) - 3:37.92 (1500 m) 5 km Yota Mashiko (Waseda Univ.) - 13:20.35 Rui Suzuki (Waseda Univ.) - 13:20.64 Half Marathon Tomoya Ogikubo (Hiramatsu Byoin) - 1:00:22 Yuma Nishizawa (Toyota Boshoku) - 1:00:26 Neo Namiki (Subaru) - 1:00:29 Daisuke Sato (Chuo Univ.) - 1:00:40 © 2026 Brett Larner , all rights reserved