Makoto and Nagisa watch with their breaths held as Haruka and Rin engage in an intense race.  However, they notice that Rin appears to be have changed. At the same time, Nagisa prepares to start up a swim club with help from Rin's sister Gou.
So that's why Haru quit 
swimming competitively.
Also deswegen hat Haru 
mit dem Sportschwimmen aufgehört.
Por eso Haru dejó la natación.
Así que por eso Haru dejó la natación.
C’est pour ça 
qu’Haru a arrêté la natation.
Per questo Haru ha smesso di gareggiare.
Foi por isso que o Haru parou
 de nadar competitivamente.
Вот почему Хару бросил соревнования.