The new-look BBC2 show, with Balding still in the umpire's chair, brought in 2.2 million viewers (a 10.8% share) on Monday night.
That figure was almost 1 million up on the previous Monday's show, which had 1.3 million viewers and a 6.8% share.
Last week's audience average was also 1.3 million across six episodes.
Wimbledon 2Day started as a more informal programme than Today at Wimbledon, with Balding chatting to guests and fans at a wine bar named the Gatsby Club.
It also included home video clips of babies playing tennis, while highlights of the day's action were largely reduced.
The show's unpopular studio audience has now been axed, while the venue has become a studio above Centre Court, and the tennis highlights have been increased.