Ace of the Diamond (Season 4)

Up Ahead (Episode 1)

Writer: Kenji Konuta

Air date: 2026-04-05

Runtime: 24 min

Overview: Seido takes on Norikane High as Sawamura struggles to live up to the weight of the team's ace number.

For the Team (Episode 2)

Air date: 2026-04-12

Runtime: 24 min

Overview: Ichidaisan High faces off against Yakushi, with Amahisa revealing a new pitch in his showdown with Raichi.

The Path of the Victor (Episode 3)

Air date: 2026-04-19

Runtime: 24 min

Overview: The showdown between Amahisa and Raichi kicks off the second half of the Yakushi-Ichidaisan match.

Roar (Episode 4)

Air date: 2026-04-26

Runtime: 24 min

Overview: Four quarterfinals matches play out as the semifinalists are decided.

Something Off (Episode 5)

Air date: 2026-05-03

Runtime: 24 min

Overview: Potential injuries plague both Seido and Ichidaisan, while Sawamura tries out new pitches.

The Unveiling (Episode 6)

Air date: 2026-05-10

Runtime: 24 min

Overview: Amahisa and Sawamura reveal a few new tricks to start the Ichidaisan-Seido match.

What's Built Up (Episode 7)

Air date: 2026-05-17

Runtime: 24 min

Overview: Ichidaisan and Seido continue to clash with no ground to spare in a tight match between ace pitchers.

The Mentality of the Ace (Episode 8)

Air date: 2026-05-24

Runtime: 24 min

Overview: The pressure builds on Sawamura as the Ichidaisan team brings out all its tricks to break the stalemate.

High Voltage (Episode 9)

Air date: 2026-05-31

Runtime: 24 min

Overview: The pitchers' duel continues as Seido struggles to make up for lost ground.

My Fight (Episode 10)

Air date: 2026-06-07

Runtime: 24 min

Overview: As late innings roll around, Seido seeks to break through Amahisa's ironclad pitching.

As a Partner (Episode 11)

Air date: 2026-06-14

Runtime: 24 min

Overview: One run behind in the eighth inning, the heart of Seido's order comes to the plate with a man on third.

The Next Stage (Episode 12)

Air date: 2026-06-21

Runtime: 24 min

Overview: After a dramatic turning point, Sawamura tries to get his last three outs of the game.

An Endless Road (Episode 13)

Air date: 2026-06-28

Runtime: 24 min