Dimitri, born in November, looked just too cute at the event alongside his sister Wyatt. The two even had some toys to keep them entertained when they weren't being fascinated by the world-class athletes.
Earlier this year, Ashton, 39, spoke with Ellen DeGeneres about his son, and told her he initially wanted to name him Hawkeye! Good thing he let Mila choose the name.
"We're on our way to date night, and Mila turns to me and she goes, 'So, I think Donald Trump is going to become the President, and I think our baby's name is Dimitri.' I was like, 'Donald Trump's not going to win the...'" he said. "And then I forgot about the name thing because I was like, 'Why do you think Donald Trump is going to win?' I'm telling you, she called it! It's not even a joke."
They even had a secret wedding back in 2015, which the actor later called "a ninja effort."
What are your thoughts on Ashton's son Dimitri? Let us know in the comments section.