S3E10 The Grab Start of Hope!

The Grab Start of Hope! (希望のグラブスタート！ Kibou no Gurabusutaato！) is the tenth episode of season three of the Free! anime and the thirty-fifth episode of the overall series. It aired on September 12, 2018.

Synopsis
Rin Matsuoka reunites with Sosuke Yamazaki and learns about his recovery. Rei Ryugazaki and Nagisa Hazuki qualify for Nationals. Unable to reach Haruka Nanase for weeks, Makoto Tachibana shares his worries with Rin who uses his credentials to gain access to Haruka's training camp. There, Makoto demonstrates skills noticed by Ryuji Azuma who encourages him to consider athletic training as a career. Back in Tokyo, Makoto's student Misaki Kuramoto finally shows that he understands the supportive nature of rivalry and Nao Serizawa validates Ryuji's opinion of Makoto's skills in helping athletes both physically and mentally leading Makoto to decide that he wants to become a professional trainer.

Source: Wikipedia, with author's permission.

Characters
List of characters in order of appearance: