Events in Sports History in September 1952

F1 World Champion

Sep 7 Alberto Ascari of Italy in a Ferrari wins Formula 1 World Drivers Championship with victory in season ending Italian Grand Prix at Monza; wins title by 12 points from countryman Giuseppe Farina

Sep 7 NY Yankees Johnny Mize's pinch-hit grand slam gives Yanks a 5-1 win at Washington, giving him a HR in all 15 major league parks
Sep 7 Outfielder Don Grate throws a baseball a record 434'1" (Tenn)

Sep 8 US National Championship Men's Tennis, Forest Hills, NY: Australian Frank Sedgman wins his second straight US title; beats American Gardnar Mulloy 6-1, 6-2, 6-3; last amateur major before turning pro in 1953

US Open Women's Tennis

Sep 8 US National Championship Women's Tennis, Forest Hills, NY: Defending champion Maureen Connolly beats fellow American Doris Hart 6-3, 7-5

Sep 21 MLB Boston Braves play what turns out to be their last home game at Braves Field in Boston, losing to the Brooklyn Dodgers 8–2 before crowd of 8,822; team relocates to Milwaukee before start of next season
Sep 23 1st closed circuit pay-TV telecast of a sports event
Sep 23 Brooklyn Dodgers clinch NL pennant with a record of 96-57 over the New York Giants 92-62

Marciano KOs Walcott

Sep 23 Undefeated Rocky Marciano KOs defending champion Jersey Joe Walcott in the 13th round at Municipal Stadium, Philadelphia for the world heavyweight boxing title