The day the USTA introduced the tiebreak - Tennis Majors

On this day in 1970, the USTA introduced a bold change in the scoring format of tennis, one that would be adopted across the board over the years.

US Open (tennis) - Wikipedia

Mercer Tennis Classic: Top Seeds Day, Townsend Advance - Mercer University Athletics

What are the tie-break rules at the US Open this year? Grand Slam to follow Wimbledon blueprint

ZooTennis: August 2023

John Isner, Donald Young lead Americans into second week of U.S. Open

In men's tennis, prior to the introduction of the tie-break, (a) what is the longest set & highest score in major tournament history, and (b) who were the players? - Quora

Tennis - Wikipedia

Introducing the 2020 US Open's Grand Slam debutantes

Rolex and The US Open - Razny Jewelers

Holt stuns fellow American Fritz in Grand Slam main draw debut

Tennis Briefs(3): Record Players at USTA 10-Point Tiebreak Tourney; More - USTA Florida