Now we have the inside story on who won.
Read on for the hoops scoop...
"I did get to watch them play basketball yesterday, which is something I will never forget," Clooney's girlfriend, Stacy Keibler, 32, just told us at the 19th Annual EIF REVLON Run/Walk at the Los Angeles Memorial Coliseum at Exposition Park.
"George and Obama were on the same team, so they both won! I was the cheerleader on the side."
No word on how Tobey Maguire did. The Spider-Man star reportedly played in the game, too.
It was the perfect way to end the week that included Obama's historic announcement that the supports same-sex marriage. "I'm extremely happy about it," Keibler said. "I think that it doesn't matter who you love, it doesn't matter what color you are or your religion is, we all need to come together as a country and really love each other."
Keibler wasn't the only celeb at the walk this morning. Also there were Halle Berry, Matthew Morrison and Matt Bomer. A similar walk took place in New York City last week with Emma Stone, Olivia Wilde and Jimmy Fallon.
Keibler said, "My family's been affected by cancer, so I'm happy to be here today to help raise money and to help encourage research for women's cancers."
Keep up the great work, Stacy!