The ALTA Senior Men's Day League is made up of men 55 years of age and older and plays during the Spring and Fall seasons. Each Senior Men's Day League season lasts seven weeks ending in a series of playoffs, which lead to the City Championship at each playing level.
Teams are formed through individual effort at public facilities, neighborhood courts, and private clubs. Playing levels include, from advanced to novice, AA, A, B, and C. Within each level, there are up to 9 flights.
The prior season/year performance of the team and previous levels of its players determine team placement within the levels and flights. Individual players' levels are determined by their prior levels from the following leagues in this order: Senior Day Men's level (prior two seasons), Senior Men's level (from most recent past season), Senior Mixed level (from most recent past season), Men's level (prior two seasons), Mixed Doubles level (prior two seasons).
With so many degrees of competition, players are assured of facing off against someone of comparable ability and allows for a highly competitive match and fun tennis environment.