Ace of the Diamond: Season 4
- Premiered Apr 5, 2026
- 25 episodes
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.
Episodes
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1. Up Ahead
Seido takes on Norikane High as Sawamura struggles to live up to the weight of the team's ace number.
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2. For the Team
Ichidaisan High faces off against Yakushi, with Amahisa revealing a new pitch in his showdown with Raichi.
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3. The Path of the Victor
The showdown between Amahisa and Raichi kicks off the second half of the Yakushi-Ichidaisan match.
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4. Roar
Four quarterfinals matches play out as the semifinalists are decided.
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5. Something Off
Potential injuries plague both Seido and Ichidaisan, while Sawamura tries out new pitches.
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6. The Unveiling
Amahisa and Sawamura reveal a few new tricks to start the Ichidaisan-Seido match.
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7. What's Built Up
Ichidaisan and Seido continue to clash with no ground to spare in a tight match between ace pitchers.
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8. The Mentality of the Ace
The pressure builds on Sawamura as the Ichidaisan team brings out all its tricks to break the stalemate.
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9. High Voltage
The pitchers' duel continues as Seido struggles to make up for lost ground.
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10. My Fight
As late innings roll around, Seido seeks to break through Amahisa's ironclad pitching.
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11. 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.
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12. The Next Stage
After a dramatic turning point, Sawamura tries to get his last three outs of the game.
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13. An Endless Road
With the finals approaching, the players wrestle with the psychological elements of the game.
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14. The Night Before the Finals
Seido and Inashiro prepare for the game that will take one of them to Koshien.
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15. Full Throttle
The finals kick off as first innings from Narumiya and Furuya set the tone.
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16. Transmission
The shutout continues as each team looks for a flaw in their opponent's dominant pitching.
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17. The Taste of Victory
Inashiro's lineup seeks to take advantage of Furuya's early signs of weakness.
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18. Showdown of the Determined
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19. Episode 19
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20. Episode 20
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21. Episode 21
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22. Episode 22
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23. Episode 23
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24. Episode 24
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25. Episode 25
Episode information from TMDB. Air dates refer to the original broadcast or release.