The day's final match featured Davenport and actress Kaley Cuoco of "8 Simple Rules" fame taking on Mike Bryan and funnyman/actor Jon Lovitz.
Before the match, Davenport, who owns a home in Ventura County, said she'd probably throttle back a bit on the celebrities, although firing a fastball at Lovitz was still in the back of her mind, she added.
"You have to scale back a little bit," Davenport said. "That would be like if we went on stage to sing with a rock band—they wouldn't be expecting much. Still, you want to make good points and have fun with it."
Lovitz and Mike Bryan won the match, 6-2.
According to the Bryan Brothers Foundation, the entire event, which was the first of its kind for the foundation and also featured a gala and dinner to honor Agassi, raised more than $100,000.
Bob Bryan said he was blown away with how well the inaugural event went.
"When you have Andre, that adds a lot of pop," Bob Bryan said. "It might be a bit downhill from here after getting one of the greatest players of all time in the first year, but we're really looking forward to doing it again."