The duo played earlier this month at the Victorian Wheelchair Open, with Alcott prevailing 6-1 6-3, and the 30-year-old put in a similarly dominant display, boosted by 30 winners on MCA.
Schroder, who lifted his maiden major with victory over Alcott at the US Open, claimed the opening six points.
However Alcott got on the scoreboard with a superb defensive lob winner. Transferring up the court, the 30-year-old struck a smart acute volley to level.
Having connected with a sweet serve and drop shot, Alcott let out a huge roar, pumped up to lead 2-1.
The world No.1 was mixing up the spins, and great variety kept the Melburnian in charge.
“Stay on him” called out Alcott and he certainly did, dictating with heavy serves and ripping a backhand cross court winner to post a 4-1 advantage.