US Women's Golf Open
Sep 1 1st US Open Women's Golf, Spokane CC: Patty Berg wins inaugural Open and only one played in match play format; takes 36-hole final 5 & 4 over Betty Jameson
- Sep 5 Joe Garagiola plays his 1st major league baseball game, in his hometown of St. Louis; 2 RBI's in Cardinals' win over Chicago Cubs
- Sep 6 All-America Football Conference begins regular season play as the Cleveland Browns beat the Miami Seahawks 44-0 before 60,135 at Cleveland's Municipal Stadium
- Sep 8 San Francisco 49ers play 1st AAFC game, lose to NY Yankees 21-7
US Men's Tennis Open
Sep 8 US National Championship Men's Tennis, Forest Hills, NY: Jack Kramer beats fellow American Tom Brown Jr. 9-7, 6-3, 6-0 for his first of 2 straight US singles crowns