The tennis star walked in her S by Serena show during New York Fashion Week

Model mama!

On Tuesday, Serena Williams walked the runway with her daughter, Alexis Olympia, 2, during her S by Serena show at New York Fashion Week.

Williams, 37, rocked a snakeskin mini skirt, a lacy blacktop, and silver jewelry as she hit the catwalk, while little Olympia wore a black shirt accessorized with colorful Nike sneakers.

The tennis star launched S by Serena, her direct-to-consumer fashion line, last year. The collection includes loungewear, basics, and work-appropriate items, which Williams says is for women who “believe in something and believe in themselves.”

Olympia, Williams’ only child with husband Alexis Ohanian, turned 2 years old earlier this month.

“The last 2 years have been my greatest accomplishment,” the athlete captioned an Instagram post on the special day.

Want all the latest pregnancy and birth announcements, plus more celebrity parenting news? Click here to get those and more in the PEOPLE Parents newsletter.

Serena Williams
Serena Williams and daugher Alexis Olympia
| Credit: Victor VIRGILE/Gamma-Rapho via Getty
Serena Williams
Serena Williams and daughter Alexis Olympia
| Credit: Victor VIRGILE/Gamma-Rapho/Getty

The New York Fashion Week show came just days after Williams’ U.S. Open final loss to 19-year-old Canadian Bianca Andreescu, which she later called her “worst match.” The veteran tennis star lost 6-3, 7-5.

“I love Bianca, I think she’s a great girl, but I think this is the worst match I’ve played all tournament. And it’s hard to know that you could do better,” Williams told reporters after the match. “It’s inexcusable for me to play at that level.”

Williams also told reporters she was having a difficult time accepting her performance level and telling herself, “‘you did okay because I don’t think I did.”

“I could have just been more Serena today,” the mother of one said at the time. “I honestly don’t think Serena showed up and I have to figure out how to get her to show up.”