American's first prominent professional player,
Vincent Richards, arranged what became the first U.S. Professionals by negotiating with Doc Kelton to have a tournament played at the Notlek Tennis Club, located at 119th Street and Riverside Drive in Manhattan, New York, on September 23–25, 1927. There are two U.S. Pro events listed here for both 1951 (Cleveland and Forest Hills) and for 1954 (Cleveland and L.A. Tennis Club). Gonzales won two U.S. Pro titles in 1954. Its final permanent home was the
Longwood Cricket Club in Chestnut Hill, Massachusetts, where it was held from 1964 to 1999. It became part of the
Grand Prix Tennis Tour shortly after the advent of
open tennis in 1968. From 1970 to 1977, it was a prominent tournament of the
Grand Prix Super Series. It then became a tennis event within the
ATP Tour with reorganization of the top tier of pro tour tennis. The tournament was later played on Har-Tru clay courts and was initially an important tune-up event for the
US Open. But when this Grand Slam tournament moved to hardcourts in 1978, the U.S. Professionals did not follow suit, electing instead to hold its tournament during the US clay court season in early summer instead of during its hitherto pre-Open Era (late summer) time slot. Remaining a clay event into the 1990s, it was a non-ATP exhibition event from 1990 through 1995. During the last stint of the tournament, from 1997 to 1999, it was again an ATP event and was played on hardcourts.
Pancho Gonzales holds the record for most wins with nine, two of those wins in the multiple year of 1954. ==Past finals==