Alysa Liu participated in Nickelodeon's Kids’ Choice Sports Awards 2019

[Sylvia]

Hosted by Michael Strahan, Kids’ Choice Sports 2019 Airs Saturday, Aug. 10, at 8 p.m. (ET/PT) on Nickelodeon (press release dated July 11, 2019): https://finance.yahoo.com/news/nickelodeon-kids-choice-sports-2019-013100301.html

... The slime-filled celebration also featured two star-studded teams going head to head in the first-ever Kids' Choice Sports Championship--a mega-competition made up of five grand-scale, sports-themed challenges that spanned the entire show. Team Slime Slammers was captained by Lindsey Vonn with Alysa Liu, Kel Mitchell, Shaun White, Trae Young and Nyjah Huston. Team Orange Crunch was led by Rob Gronkowski with David Dobrik, Laurie Hernandez, Olivia Moultrie, Ben Simmons and P.K. Subban.

2 photos of Alysa with her team (she's known to be a slime aficionado so I'm not surprised she competed here ): https://www.instagram.com/p/B1HBTfxAR_T/
Alysa also shared 3 photos from the event on her IG back in July: https://www.instagram.com/p/BzzCFesnX8U/

Here are more photos of Alysa via Getty Images.

I don't know if she made the telecast (ETA: I just caught a few glimpses of her in tonight's rebroadcast) but here's the Nickolodeon broadcast info:
Kids’ Choice Sports 2019 will encore: Saturday, Aug. 10, at 9:30 p.m. (ET/PT) and Sunday, Aug. 11, at 6:30 p.m. (ET/PT) on Nickelodeon; Monday, Aug. 12, at 6:30 p.m. (ET/PT) on TeenNick; and Tuesday, Aug. 13, at 6:00 p.m. (ET/PT) on Nicktoons. The telecast will also be available via Nickelodeon on Demand beginning Sunday, Aug. 11.