Most Matches Played in Single Season

In the Open Era and in tour-level singles only, the benchmark for Most Matches Played in a Single Season belongs to Guillermo Vilas with 150 matches in 1977, a single-season workload that defines the category.

Second place is Ilie Nastase on 143 in 1973, leaving a gap of 7. The broader top five on this durability leaderboard are Guillermo Vilas with 150 in 1977, Ilie Nastase with 143 in 1973, Ilie Nastase with 140 in 1972, Ivan Lendl with 138 in 1980, and Brian Gottfried with 134 in 1977.

The full ranking below keeps every entry visible, while this summary puts the headline record, the chasing pack, and the season-by-season context front and center.