The 1971 USLTA Indoor Circuit, also known as the U.S. Indoor Winter Circuit, was a professional tennis circuit held in the United States that year. It consisted of six tournaments and was organized by Bill Riordan and sanctioned by the United States Lawn Tennis Association (USLTA).[1][2] A $40,000 bonus pool was made available via the circuit sponsor Gillette for the top 10 points finishers.[3] Total prize money for the tour, including the bonus, was $220,000.[4]
^"Fine edge helps out". The Province. AP. January 28, 1971. p. 19 – via Newspapers.com. A $40,000 bonus by the Gillette Company Wednesday boosted to $220,000 the total prize money for the U.S. Indoor Winter Tennis Circuit.