

Episode 10: “Irritated Heart Rate!”
Free! - Iwatobi Swim Club · 苛立ちのハートレイト!
- 10 of 12
- September 12, 2013
- 24 min
- Aired
From Acino, the anime encyclopedia
| Series | Free! - Iwatobi Swim Club |
|---|---|
| Episode | 10 of 12 |
| Japanese | 苛立ちのハートレイト! |
| Original air date | September 12, 2013 |
| Episode length | 24 min |
| Studio | Kyoto Animation, Animation Do |
| Previous episode | Episode 9: “Hesitant Loosen Up!” |
| Next episode | Episode 11: “Furious All-out!” |
| Streaming | Crunchyroll, Netflix, Prime Video, Hulu |
“Irritated Heart Rate!” is episode 10 of the anime Free! - Iwatobi Swim Club. It first aired on September 12, 2013.
Summary
A summary of this episode has not been written yet.
Music in this episode
- ED 1“SPLASH FREE” — Mamoru Miyano, Nobunaga ShimazakiAnimeThemes
Where to watch
Streaming services that list Free! - Iwatobi Swim Club. What you can watch depends on your country. Acino does not host any video; each link leads to the service's own page.
Episode guide
About the series

Free! - Iwatobi Swim ClubTV series · 2013 · 12 episodes · Kyoto Animation · ★ 7.32
Free! - Iwatobi Swim Club is a 2013 Japanese original anime television series created by Kouji Ooji. It is animated by Kyoto Animation and Animation Do. It aired from July 4, 2013 to September 26, 2013, with 12 episodes.
Read the article →References
- “Free! - Iwatobi Swim Club”. Kitsu. Retrieved October 22, 2026.
- “Free!”. MyAnimeList. Retrieved October 27, 2026.
- “Free! - Iwatobi Swim Club”. AnimeThemes. Retrieved October 23, 2026.
Episode titles and air dates come from Kitsu. The summary is written by Acino with AI assistance and checked so that it does not copy other sites.