Before the scrimmage Daimon tells Azuma that Shido will not fire him even if the varsity team loses, and Shido confirms this. However, during the first inning, Tubby's grandfather, who is the school's chairman, tells Shido and Daimon he is ratifying the wager with Maeno. During the first two innings, Ko allows the bases to get loaded before striking out the next three batters, and to focus him, Akaishi tells Ko to pitch as if it were late in the game. In the sixth inning, the game still scoreless, Daimon asks Azuma who were the portable team's opponents in their practice matches; Azuma says they played top teams from the prefectural tournament, and that Ko pitched easily the first six innings to give his team fielding practice. In the seventh inning, Aoba hits a single and then scores on Senda's sacrifice fly. During the final innings, Azuma asks Daimon if he wishes he had better hitters in his lineup, such as Miki, and as Ko strikes out the final three batters, Azuma says Ko is now the best pitcher they have played against all year. As the portable team celebrates their win, Aoba silently tells Wakaba that Ko did it.
いよいよプレハブ組と1軍との試合。試合が始まり、マウンドには光。1軍の1番から3番までの中3トリオに3連打を浴び、ノーアウト満塁のピンチに見舞われる。が、その後の打者を3者3振にとり、ピンチをしのぐ。前野の提案を受けて、この試合にクビをかけたはずの大門だが、実はそんなつもりは微塵もなく…。
드디어 다가온 가건물 팀과 1군의 시합 당일. 가건물 팀은 1군 스타팅 멤버에 아즈마와 미키가 없다는 것을 알고 놀란다. 시합이 시작되고, 마운드에 선 코우. 1군의 1번 타자부터 3번 타자까지 3연속 안타를 맞고 노아웃 만루의 위기에 처한다. 과연 코우는 이 위기에서 벗어날 수 있을까?