In the Adizero 5k Tokyo Challenge, Itta Tameike set a new national record for the road 5 km, clocking in at 13:25. Riki Koike closely followed at 13:26, both surpassing the previous NR set in May last year. Shadrack Kipkemei won the race with a time of 13:15.

At the Berlin Marathon, Yuhei Urano achieved a personal best of 2:06:09, finishing 9th overall. This marks his third sub-2:07 marathon in his last four races. Other notable Japanese performances included Kenya Sonota and Shunsuke Shikama, who finished 11th and 12th, respectively. Read more racing coverage.

The Nittai University Time Trials saw Keita Satoh set a personal best of 3:36.49 in the men's 1500 m, improving his time by nearly 7 seconds from earlier in the year. Airi Tajima also excelled, winning both the women's 1500 m and 3000 m events. Related: Elite Women's Race to Headline 2027 Double TCS London Marathon.

This original Runner World brief is based on reporting from Japan Running News. Visit the source for its complete reporting, context and any later corrections.