Haru Balogun (Ichikawa H.S.) dominated the girls' 400m, finishing over a second ahead of her nearest competitor in 53.74. Kodai Okumura (Saikyo H.S.) similarly excelled in the boys' 400m, winning by almost as much in 46.82.

Reon Kitamura (Rakunan H.S.) secured the boys' octathlon title with 5932 points, maintaining his lead from day 1. Mio Toshida (Kasukabe Joshi H.S.) narrowly won the girls' 5000m race walk, finishing 2 seconds ahead of Hikari Osaka (Shiritsu Nishinomiya H.S.). Read more racing coverage.

Rio Ogawa (Inou H.S.) claimed the girls' shot put title with a throw of 13.99m, while Rikuto Fukuda (Kanuma Higashi H.S.) won the boys' long jump with a leap of 7.55m. Related: Niko Nozawa Sets New Meet Record at National High School Championships.

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.