Four quarterfinals matches play out as the semifinalists are decided.

Roar

Ryota Osaka

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

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

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

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

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

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

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

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

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

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

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

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

Seido and Inashiro prepare for the game that will take one of them to Koshien.

The finals kick off as first innings from Narumiya and Furuya set the tone.

The shutout continues as each team looks for a flaw in their opponent's dominant pitching.

Scouted for his potential, brash left-handed pitcher Eijun Sawamura joins baseball powerhouse Seido High to become the undisputed ace of the team.