Beta · Work in Progress

Feed Up Next Discover Trivia

Search shows and members

This product uses TMDB and the TMDB APIs but is not endorsed, certified, or otherwise approved by TMDB.

Memberships About Aird

Ace of the Diamond Act II -Second Season- poster

Ace of the Diamond · Season 4

Act II -Second Season-

14 episodes · weekly release · Apr 5, 2026

Seido High's star pitcher, Eijun Sawamura, has finally earned the prized ace uniform, but this summer is his last shot to lead the school's baseball team to victory. He and his stoic teammates Furuya, who battles injury, and Miyuki, who anchors the team as captain, will hold the rope through every curve ball that comes their way in the tournament.

Sign in to write a review

Read season reviews

Aird community data

Episode chart

0/14 rated

E1—0 ratings E2—0 ratings E3—0 ratings E4—0 ratings E5—0 ratings E6—0 ratings E7—0 ratings E8—0 ratings E9—0 ratings E10—0 ratings E11—0 ratings E12—0 ratings E13—0 ratings E14—0 ratings

Episode ratings will fill this map as the community checks in.

Part 1Ends at the midseason break

24 min · Apr 5, 2026

Up Ahead

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

24 min · Apr 12, 2026

For the Team

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

24 min · Apr 19, 2026

The Path of the Victor

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

24 min · Apr 26, 2026

Your season rating · optional

★★★★★★★★★★½ stars1 stars1½ stars2 stars2½ stars3 stars3½ stars4 stars4½ stars5 stars

Roar

Four quarterfinals matches play out as the semifinalists are decided.

Aired

24 min · May 3, 2026

Something Off

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

24 min · May 10, 2026

The Unveiling

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

24 min · May 17, 2026

What's Built Up

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

24 min · May 24, 2026

The Mentality of the Ace

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

24 min · May 31, 2026

High Voltage

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

24 min · Jun 7, 2026

My Fight

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

24 min · Jun 14, 2026

As a Partner

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

24 min · Jun 21, 2026

The Next Stage

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

Midseason finale · 24 min · Jun 28, 2026

An Endless Road

With the finals approaching, the players wrestle with the psychological elements of the game.

Part 2

Oct 11, 2026

Episode 14

Episode details are still TBA.

Not aired yet