Mashiko 8:11.12 JHS 3000 m NR - Long Weekend Track Highlights

Ekiden season got up to full speed this weekend, but there was still a healthy chunk of track action across the country. The main event was the National Sports Festival Thursday through Monday in Tochigi. In the junior men's 3000 m Rui Suzuki (Yachiyo Shoin H.S.) ran 8:01.26 for the win, the 3rd-fastest time ever by a Japanese high schooler. Yamato Hamaguchi (Saku Chosei H.S.) was 2nd in 8:07.66, but the biggest news was 3rd-placer Yota Mashiko, a 9th-grader at Fukushima's Kagamiishii J.H.S. Already the junior high school 3000 m NR holder after running 8:15.04 in August, Mashiko chopped 4 seconds off that mark with a new 8:11.12 NR.

The junior men's 5000 m was also fast, with the top 8 all breaking 14 minutes and the top 14 under 14:10, all high schoolers. Hiroto Yoshioka (Saku Chosei H.S.) took the top spot in 13:53.85, Sonota Nagashima (Nishiwaki Kogyo H.S.) 2nd in 13:54.80 and Yoshihiro Kusuoka (Keisei H.S.) 3rd in 13:55.84.

In the junior women's 3000 m Caroline Kariba (Kamimura Gakuen H.S.) won in 8:56.79, the only athlete under 9 minutes. 2022 World U20 Championships 1500 m 6th-placer Yuya Sawada (Hamamatsu Shiritsu H.S.) was 2nd in 9:14.70 just off her PB, with Kana Mizumoto (Osaka Kunei Joshi Gakuin H.S.) 3rd in 9:15.54.

National University Women's Ekiden champion Meijo University's Yuma Yamamoto broke the senior women's 5000 m meet record with a PB 15:16.71, beating NR holder Ririka Hironaka (Japan Post) by over 6 seconds. Her teammate Narumi Kobayashi continued to struggle in her comeback from a coronavirus infection that kept her off the 2022 World Championships 10000 m squad, running only 15:58.21 for 8th.

At the Chubu Region Corporate Track and Field Championships in Gifu the main result was in the men's 10000 m, where Emmanuel Maru (Toyota Boshoku) ran a PB 27:33.67 for the win, 7 seconds up on Evans Keitany (Toyota Boshoku) and 9 on Bedan Karoki (Toyota). Minato Oishi (Toyota) was the only Japanese man under 28 minutes, running 27:57.32 for 6th. 8 men total went under 28 minutes.

Tokai University didn't make it to Monday's Izumo Ekiden, instead holding a home track time trials meet. Shota Shimazaki (Kanagawa Univ.) won a 3-way sprint finish over corporate leaguers Jinnosuke Matsumura (Comodi Iida) and Ryoma Takeuchi (ND Software) in the men's 10000 m, taking 1st in 28:58.70 with Matsumura 2nd in 28:59.76 and Takeuchi 3rd in 29:00.95. Newcomer Timothy Kibet (Makes) won the men's 3000 in 8:03.73.

In Izumo, alternates from the ekiden ran a track 5000 m time trial as part of a local meet. Leakey Kamina (Soka Univ.) took the top spot in 14:00.43, with ekiden winner Komazawa University alts Kensuke Tsuburan and Takuma Yamakawa 2nd and 3rd in 14:04.61 and 14:10.20.

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...

japan running news

Search This Blog