Ace of the Diamond act II -Second Season- returns with its second cour on October 11, 2026. New episodes begin Sundays at 5:30 p.m. JST on the six-station TV Tokyo network, with AT-X and other Japanese broadcasters also listed.
The September 8 announcement also released a new key visual and added Daisuke Sakuma to the cast as Shinichiro Saotome. An international streaming time and the number of episodes in the new cour have not been announced.
Ace of the Diamond cour 2 release details
- Return date: Sunday, October 11, 2026.
- Japan time: 5:30 p.m. JST on the TV Tokyo network.
- Broadcasters: Six TV Tokyo network stations, AT-X and additional Japanese outlets.
- Main matchup: Seido High School versus Inashiro Industrial in the West Tokyo championship game.
- New cast member: Daisuke Sakuma as Shinichiro Saotome.
- Cour 2 music: GLAY performs the opening theme and OxT performs the ending theme.
- International streaming: A specific October date and time have not been announced.
What did the September 8 update reveal?
The official Japanese site replaced the broad October window with an exact broadcast start. The date notice says the second cour begins October 11 and runs Sundays at 17:30 on the TV Tokyo network. AT-X and other broadcasters are named as part of the Japanese rollout, but the notice does not assign the same clock time to every outlet.
The new key visual shifts the focus from a two-player faceoff to the full pressure around the final. Mei Narumiya appears opposite Eijun Sawamura, Satoru Furuya, Kazuya Miyuki, Haruichi Kominato and Yoichi Kuramochi. The production’s description connects each Seido player to the challenge of getting past Inashiro’s ace.
The visual is promotional art, not evidence of the final score or a specific episode order. No winner, episode count or finale date accompanies it.
Why Seido and Inashiro are meeting again
The second cour moves into a rematch of the previous summer’s West Tokyo final. In that earlier game, Inashiro stopped Seido one step short of Koshien. Seido now reaches the championship game after defeating Sanko High School in the semifinal, while Inashiro is trying to secure a third consecutive trip to the national tournament.
The August teaser notice identifies Satoru Furuya as Seido’s starting pitcher and Mei Narumiya as Inashiro’s starter. It also says Seido expects to hand the ball from Furuya to Eijun Sawamura. That sets up two different pitching questions: how long Furuya can hold the game and when Sawamura will be asked to enter it.
The official material establishes the stakes and starters without revealing the result. Any claim about the winning school, decisive play or number of episodes devoted to the final would go beyond the announcement.
What does the second-cour teaser show?
The 57-second teaser opens by revisiting Seido’s loss from the previous summer and the players who carried that frustration forward. It then returns to the packed stadium and builds the rematch around pitching, defense and the pressure of one more championship game against the same opponent.
Narumiya is framed as the barrier Seido must solve. The video cuts between both teams, flashes the West Tokyo final setup and closes on the October 2026 window that was current when the teaser appeared on August 15. The later September 8 notice is the source for the exact October 11 date.
The teaser does not spoil the championship game. Its footage supports the rematch setup, but not a prediction about how the anime will pace or conclude it.
Who is Shinichiro Saotome?
Shinichiro Saotome is an Inashiro Industrial second-year player whose position is right field. The official cast announcement describes him as an exceptionally talented baseball player who missed much of his first year because of recurring injuries. He bats left-handed and can place the ball across the field rather than relying on a single hitting lane.
Daisuke Sakuma voices Saotome. In his official comment, Sakuma describes the character as someone who may appear to move at his own pace but is constantly thinking about how to win. The announcement gives Saotome a clearer place in Inashiro’s lineup without saying which episode will introduce him or how much screen time he receives.
No other new cast member was announced in the September 8 item. The separate visual update names the featured players, but it is not a cast expansion list.
How the title, staff and music fit together
The naming can be confusing. Ace of the Diamond had an earlier season titled Second Season in 2015. The current production is specifically Ace of the Diamond act II -Second Season-, a sequel to the 2019–2020 act II anime. This 2026 production began on April 5, aired its first cour through June and now resumes with cour 2 in October.
Hideaki Oba directs the current anime at OLM. Kenji Konuta handles series composition, Yasukazu Shoji is the character designer and Hajime Hyakkoku composes the music. Yuji Terajima created the original manga. Those credits appear on the official English site and apply to the 2026 production.
GLAY performs the opening theme for the second cour and OxT performs the ending theme. Both acts have previously contributed music to Ace of the Diamond. The June announcement identifies the performers but does not provide song titles, so titles circulating without a later official notice should not be treated as confirmed here.
Where can you watch Ace of the Diamond?
The official English site currently links viewers in America to Crunchyroll. The Japanese production separately announced Netflix availability immediately after the April first-cour broadcasts. Those listings support present series access in their stated regions, not a guaranteed October 11 simulcast time.
The Japanese October announcement does not give an international platform schedule. Until Crunchyroll or another licensed distributor posts a dated listing for cour 2, viewers outside Japan should treat the service and release time as unconfirmed.
The Ace of the Diamond act II -Second Season- anime page collects the verified premise, production credits and release information in one place.
What is still unconfirmed?
The production has not announced the second cour’s episode count, final episode date, episode titles or exact AT-X timetable. It has also not attached a specific international streaming day or hour to the October return. The Sunday 17:30 time belongs to the TV Tokyo network notice and should not be converted into a worldwide release promise.
The new visual and teaser do not reveal who wins the West Tokyo final. They also do not confirm how many manga chapters the cour adapts or whether any material will be reorganized for television.
Pixel Twelve’s Anime hub tracks confirmed release dates and streaming updates as official information changes.
Ace of the Diamond cour 2 FAQ
When does Ace of the Diamond act II cour 2 start?
It starts October 11, 2026. The TV Tokyo network broadcast is scheduled for Sundays at 5:30 p.m. JST.
Will cour 2 stream on Crunchyroll?
The official English site links viewers in America to Crunchyroll, but a dated international schedule for the October cour has not been announced.
Who does Daisuke Sakuma play?
He voices Shinichiro Saotome, a second-year right fielder for Inashiro Industrial and a versatile left-handed hitter whose first year was limited by injuries.
