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JRN's 10 Most-Read Articles of 2023


After winning the first day of the 2023 Hakone Ekiden, Komazawa University joined the exclusive club of teams to pull off the triple crown of wins at the Izumo Ekiden, National University Ekiden and Hakone, dominating the second day to win by just under two minutes over Chuo University. Both teams and 3rd-place Aoyama Gakuin University made the all-time top 10 fastest times, and five men ran the equivalent of a sub-1:01 half marathon. TV viewership was high, with ratings of 35.0%. JRN's pre-race preview.

At the Marathon Grand Championship race, Japan's trials for the Paris Olympics and the most difficult marathon ever to qualify for, Yuka Suzuki, Mao Ichiyama, Naoki Koyama and Akira Akasaki all scored places on the Olympic team by finishing in the top two. Ai Hosoda and Suguru Osako were 3rd, leaving them vulnerable to being knocked off the team by someone running a fast time during the winter 2023-24 marathon season. JRN picked the 50th-ranked Akasaki to make the team in our pre-race preview.

The top three women and top eleven men went under the course record at the Osaka Marathon, with Ethiopians Helen Bekele Tola and Hailemaryam Kiros taking the top spots in 2:22:16 and 2:06:01. Top Japanese placing went to Momoko Watanabe at 3rd in 2:23:08 and Kazuya Nishiyama with a marathon debut NR 2:06:45 for 6th. 2nd and 3rd Japanese men Yohei Ikeda and Shohei Otsuka also went under 2:07, with another seven Japanese men under 2:08. JRN's pre-race preview.

Less than three weeks after an incredible 9:02 for 3 km at the National Women's Ekiden made a big enough splash that national media started turning up in her neighborhood to try to interview her friends and neighbors to get information about her, 9th-grader Sherry Drury scratched from the Biwako Cross Country Meet to avoid the attention, issuing a statement through a lawyer saying, "I'd like to ask media and fans to leave me alone."




Longtime Japanese resident Rosemary Wanjiru ran a world-leading 2:16:28 to win the Tokyo Marathon women's race, giving a teary-eyed interview in Japanese after the race. Runner-up Tsehay Gemechu ran 2:16:56 but was later stripped of the result as part of a doping suspension. Ethiopians went 1-3 in a sprint finish in the men's race, with Deso Gelmisa taking the win in 2:05:22. Canadian Cam Levins ran an Area Record 2:05:36 for 5th, with Komazawa University alum Ichitaka Yamashita and Kenya Sonota both sub-2:06 for 7th and 8th. Original field listing. JRN's pre-race preview here.

2022 CR breaker Ruth Chepngetich ran alone almost start to finish to win the Nagoya Women's Marathon for the second year in a row in 2:18:08, picking up her second $250,000 check for 1st. In a race to qualify for the MGC Race, 2021 Tokyo Olympians Ayuko Suzuki and Honami Maeda ran PBs of 2:21:52 and 2:22:32 for 2nd and 3rd, with Deshun Zhang running a PB 2:24:05, the fastest time by a Chinese woman since 2012, for 4th. JRN's pre-race preview.

Kazuya Shiojiri ran a 27:09.80 to take almost 10 seconds off the Japanese 10000 m NR, with the next three finishers coming in at all-time Japanese #2, #3 and #4 and the 5th-placer at #7. Ririka Hironaka won a four-way sprint finish in the women's race in 30:55.29 that saw 2nd through 4th all go under 31 minutes for the first time with the all-time Japanese #6, #7 and #8 marks.


Eleven Japanese men ran the Ottawa Marathon in Canada, the last race worldwide where people could qualify for the MGC Race Olympic marathon trials. But with rising temperatures all came up short of the marks they needed. Ryoma Takeuchi was the top finisher at 7th in 2:14:04, almost 6 minutes behind winner Yihunilign Adane of Ethiopia. JRN's pre-race preview.

A 40-year-old man in Yamanashi was arrested after showing up at a local track meet and allegedly shooting video of a teenaged female athlete in a tight uniform waiting for her race. The man admitted to police that that was what he had been doing.

After crawling down the home straight feet-first only to collapse onto his back centimeters from the line at February's Bathurst World Cross Country Championships, H.S. boys' 5000 m NR holder Hiroto Yoshioka talked about the experience and said he was recovering as he prepared to enter Juntendo University. in April where he would train alongside 3000 m steeplechase NR holder Ryuji Miura.

photos © 2023 Mika Tokairin, all rights reserved
text © 2023 Brett Larner, all rights reserved

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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...

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...

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...