Masuko's solo double play during the Seido vs Yakushi game.
Miyuki gets quite a few but the way he predicted the catchers throughts when he was at bat against Akikawa stands out. Not only did he figure out what they agreed on but he also hit the ball and left a shell shocked Shunshin behind. He's not called a genius for nothing.
Furuya getting six strike outs in a row in his first official game also counts.