Kimunyan Runs Fastest-Ever 10000 m in Japan, Iizawa Up to 1500 m All-Time #2

Kimunyan Runs Fastest-Ever 10000 m in Japan, Iizawa Up to 1500 m All-Time #2 - Weekend Track Update

Three big pre-ekiden season meets happened this weekend and produced some big results. Saturday at the Nittai University Time Trials in Yokohama, Richard Kimunyan (Hitachi Butsuryu) and Benard Koech (Kyudenko) pushed each other under Josphat Ndambiri's longstanding 10000 m Japan all-comers record of 26:57.36, Kimunyan setting the new record at 26:54.76 and Koech next in 26:55.04. Those times made them the only Kenyans under 27 minutes this year worldwide, with the Hachioji Long Distance meet still to come next month. Three others were under 27:30 led by Jonathan Ndiku (Hitachi Butsuryu) in 27:12.84, with Kazuya Shiojiri (Fujitsu) the top Japanese man at 6th in 27:53.00.

Justus Soget (Honda) took the 5000 m A-heat in 13:24.01, the top five all under 13:30 and another Fujitsu runner, Olympian Hiroki Matsueda, filling the top Japanese spot at 8th in 13:34.62. Harumi Okamoto (Yamada Holdings) won the women's 5000 m A-heat in 15:49.72, and Kenyan Hellen Ekarare (Toyota Jidoshokki) led the 3000 m in 8:49.31.

The biggest news at Niigata's Athletics Challenge Cup was in the men's 1500 m, where Kazuto Iizawa (Tokai Univ.) ran a hard solo last lap to moved up to all-time Japanese #2 in 3:36.55. Iizawa's time was also the fastest-ever by a Japanese-born collegiate runner, 0.04 under the time Ryuji Miura (Juntendo Univ.) ran in April. 8 of the 10 fastest Japanese men's 1500 m times ever have now been run since July 17, 2021, with only one having happened before July 9, 2019. Abraham Guem (Ami AC) was the only other runner under 3:40, running 3:39.35. Yume Goto (Toyota Jidoshokki) won the women's 1500 m in 4:10.79.

Olympian Yuta Bando (Fujitsu) ran the fastest Japanese men's 5000 m time of the weekend, taking the A-heat win in Niigata in 13:21.94. Shunsuke Yoshii (Chuo Univ.), younger brother of former U20 5000 m NR holder Yamato Yoshii, ran 13:40.26 for 5th, while the holder Yoshii, also at Chuo, was 13th in only 14:19.19. Agnes Mwikali (Kyocera) had a solid win in the women's A-heat in 14:56.81, with National Corporate Championships 10000 m winner Tabitha Njeri Kamau (Mitsui Sumitomo Kaijo) negative splitting the B-heat in 15:01.62 for the win. Ayano Shiomi (Iwatani Sangyo) took the women's 800 m in 2:04.41.

At the Chugoku Corporate Time Trials meet in Hiroshima, Anthony Maina (Toyota Kyushu) turned in a solid 27:41.70 for the 10000 m A-heat win by less than a second over Evans Kipkemei (JFE Steel). Cleophas Kandie (Mitsubishi Juko) took the 5000 m A-heat in 13:26.62. Marathoner Rei Ohara (Tenmaya) had her best race in a long time, winning the women's 5000 m in 15:55.70.

2026 Tokyo Marathon Elite Field

The Mar. 1 Tokyo Marathon has great fields this year, so let's get right to it. The women's field has 3 of last year's top 10, winner for the 2nd year in a row and Tokyo CR holder Sutume Asefa Kebede , 3rd-placer and 2025 Chicago winner Hawi Feysa , and 5th-placer and 2025 Berlin winner Rosemary Wanjiru , plus 2024 Valencia winner Megertu Alemu , 2025 Prague winner Bertukan Welde , 2024 Paris winner Mestawut Fikir , 2024 Osaka winner Waganesh Mekasha , former WR holder Brigid Kosgei , and a lot more. Japanese hopes pretty much go to all-time #7 Ai Hosoda , 2:20:31 in Berlin 2024 but who announced this month that she is retiring after Tokyo despite having qualified for the 2028 Olympic marathon trials with her 2:23:27 for 6th in Sydney last year. Other internationals include Canadian Malindi Elmore , American Sara Hall , a big Chinese group led by Yuyu Xia , Poland's Aleksandra Brzezińska and Australian Vanessa Wilson . The men's race has 5 of last year's top 1...

Ai Hosoda Announces Retirement

photo © 2025 Victah Sailer/Photo Run, all rights reserved On Jan. 8 the Edion women's corporate team announced that Ai Hosoda , 30, will retire at the end of March this year. The Tokyo Marathon will be her last race. At Nagano Higashi H.S. Hosoda ran in the National High School Ekiden her 2nd and 3rd years. During her 3rd year at Nittai University she won both the 5000 m and 10000 m at the Kanto Region University Track and Field Championships, going on to win the bronze medal in the 10000 m at the World University Games in her 4th year at Nittai. After graduating she joined the Daihatsu corporate team, debuting at the 2019 Nagoya Women's Marathon in 2:29:27. 2 years later she transferred to Edion. She qualified for the Paris Olympics marathon trials at the 2022 Nagoya Women's Marathon and finished 3rd in the trials in the fall of 2023, but was later bumped down to Olympic alternate after another athlete ran a faster time. Instead of the Olympics, Hosoda ran the 2024 Ber...

Measuring Marathon Courses by Bicycle

http://news.searchina.ne.jp/disp.cgi?y=2013&d=0110&f=column_0110_034.shtml translated by Brett Larner The full marathon is a sport where you compete over 42.195 km, but how do they go about measuring that distance? Today we're going to look a little bit at how they go about certifying the distance of a marathon. The reality is that major international marathons use a bicycle to measure the distance. This rule is an international standard, and the same method of measurement is used everywhere. It was put into place in 1986. In order to ensure that the same method is used everywhere, a bicycle that meets IAAF specifications must be used for measurement. In the case of Japan's major marathons, to be certain that the distance is correct a provisional measurement is first made. Before the course is certified using a bicycle the course is measured using a 50 m-long length of wire to determine that it is in fact 42.195 km. When a bicycle is u...

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