Akira Aizawa's 27:18.75 NR was destroyed as Olympic steepler Kazuya Shiojiri ran 27:09.80. Ririka Hironaka won the women's race in 30:55.29 as the top 4 women broke 31:00.
*MB: Not 1, Not 2, but 3. Yes, the top 3 men break Japanese national record at 2023 Japanese National Championship 10000 Champs!!