Mary-Kate and Ashley Olsen Go for the Gold at Their Olympic-Themed Birthday Bash

Mary-Kate, with a friend, lost to her sister.(Instagram)
Mary-Kate, with a friend, lost to her sister.(Instagram)

Mary-Kate and Ashley Olsen don't have time for a Full House reboot because they're too busy… fulfilling their Olympic dreams?!

The actresses-turned-fashionistas held what they dubbed the Olsen Olympics, a sports-filled birthday bash to mark turning 29, on Saturday. Guests, who were split into two teams (Team Mary-Kate and Team Ashley, of course), competed in a series of outdoor games, from races to dunk tanks, in the friendly competition.

Ashley, with a pal, kept on her game face. (Instagram)
Ashley, with a pal, kept on her game face. (Instagram)

According to photos posted by their friends on Instagram, guests picked out of a hat to be put on team M-K (red) or Ashley (blue). Some members of the twins' inner circle also took on the role of camp counselors to help run the activities.

Guests sported their custom shirts while they ran an obstacle course — which required them to hop through tires — and other activities reminiscent of field day back in our school days. They also had a full dunk tank. Competitors could throw a ball at a happy birthday sign and send a gentleman friend splashing.

A friend posing in front of the obstacle course. (Instagram)
A friend posing in front of the obstacle course. (Instagram)

So who won? As Michelle Tanner would say, "DUH!" That would be Team Ashley. Despite her victory, the designer, who just picked up the 2015 CFDA Womenswear Designer of the Year honor with her sister, rocked a serious expression. Meanwhile, loser M-K was all smiles. At the end of the event, everyone celebrated with sparkler-like fireworks, according to People magazine.

One person who wasn't captured in the Instagram photos of the revelry? M-K's fiancé, Olivier Sarkozy, 46. We were kind of hoping to see the much older financier sitting in the dunk tank, but, alas, he had other plans.

We think it would have been funnier if M-K's older financier fiancé was in the dunk tank. (Instagram)
We think it would have been funnier if M-K's older financier fiancé was in the dunk tank. (Instagram)

Speaking of other plans, the sisters recently announced that they won't be participating in the upcoming Full House reunion, Fuller House. John Stamos, who played Uncle Jesse on the show, described himself as "heartbroken" by their decision.