Age eligibility for tournaments
Source: Platform Tennis News, February 1981
The APTA had been fielding many requests on age eligibility. A preliminary ruling of a cutoff date of May 1 was repealed in favor of leaving the established calendar year “as is” for the balance of the season.
For example, if one attained age 45 in a given calendar year, one was eligible to play in any 45 tournaments during that year.