第 4 集: 瀧之坂與岩沼成員為縣大賽做準備，展開個人訓練與便當檢查。
2014年7月24日 播出
In anticipation of the upcoming prefectural tournament, the members of the Samezuka Swim Club enthusiastically show off their individual abilities. At the Iwatobi Swim Club, an equally enthusiastic Gou proposes a lunchbox inspection to ensure the boys are getting the right nutrition to support their training. However... (Source: Crunchyroll)