The 1948 Masters Tournament was the 12th Masters Tournament, held April 8–11 at Augusta National Golf Club in Augusta, Georgia. Claude Harmon shot a record-tying 279 (−9) and finished five strokes ahead of runner-up Cary Middlecoff, a future champion in 1955. The Sunday gallery in 1948 was estimated at 10,000 spectators, and the tournament purse was $10,000. Harmon won $2,500 and his four-round score tied the record set by Ralph Guldahl in 1939. Primarily a club professional, it was Harmon's only tour victory.