The decision brings the men's gold medal match into line with other Olympic singles matches which are all played as best-of-three sets.
The ITF said men's and women's doubles matches would feature a match tiebreak to 10 points when tied at one-set all, as is the case in mixed doubles.
"These amendments reduce concerns of overplay for players who reach the latter stages of all three events -- singles, doubles and mixed doubles," the ITF said in a statement.
(Reporting by Alan Baldwin; Editing by Pritha Sarkar)
