|Born: November 25, 1940|
|September 6, 1965, for the St. Louis Cardinals|
|Last MLB appearance|
|May 7, 1966, for the St. Louis Cardinals|
|Earned run average||5.82|
Aust was signed by the Cardinals as an amateur free agent in 1961.
Aust's only decision came on the Cardinals' opening day in 1966 when he pitched three innings in relief. After getting the first two batters out in the top of the 12th inning, he surrendered a hit to Dick Allen followed by an intentional walk to Bill White. Pinch-hitter John Herrnstein's RBI single scored Allen, leading to the Philadelphia Phillies' 3–2 victory.
- "Apr 13, 1966, Phillies at Cardinals Box Score and Play by Play". baseball-reference.com. sports-reference.com. April 13, 1966. Retrieved August 20, 2015.
- Career statistics and player information from MLB, or Baseball-Reference, or Fangraphs, or The Baseball Cube, or Baseball-Reference (Minors)
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