Having occupied Miyakonojo City, Obi, and Kushima, the 3rd brigade, the 4th brigade, and the detached 3rd brigade closed in on the Oyodo-gawa River in Miyazaki City on July 30.
都城市・飫肥・串間をおさえた第3旅団・第4旅団・別働第3旅団は7月30日、宮崎市の大淀河畔に迫った。