The question of who will share the court with Academy-Award nominated actor and entrepreneur Mark Wahlberg at this week’s MUNICIPAL Celebrity Pickleball Showdown presented by Corient at the Opendoor Pickleball World Championships has now been answered.

Joining Wahlberg are Emmy Award-winning actor Jeremy Piven, former tennis pro John Isner, mixed martial artist “Suga” Sean O’Malley, professional basketball player Isabelle Harrison, and media personality and entrepreneur Richard Rawlings.

They will take the court alongside some of the world’s top pros, including Ben Johns, Anna Bright, Roscoe Bellamy, Kate Fahey, Tyson McGuffin, Brooke Buckner, and Lacy Schneemann on Thursday, Nov. 5, at 7pm CT for a one-night-only showdown on Powerball Championship Court.

Co-founded in 2019 by Wahlberg and his longtime producing partner, Stephen Levinson, MUNICIPAL is a performance-lifestyle and athleisure brand that has two retail stores in California, a robust online merchandise catalog and sights set on growing to 20 flagship clothing stores, gyms and coffee shops over the next several years.

The brand has entered the pickleball space in 2026, a move that is most evident in its multi-year partnership with Major League Pickleball’s Dallas Flash that will begin with the 2027 season. The partnership will see MUNCIPAL outfit players and team personnel in competition uniforms, performance gear and lifestyle apparel.

“We’re excited to introduce MUNICIPAL to America’s fastest-growing sport,” said Wahlberg. “The pickleball community embodies the principles our brand was built on: dream, plan, hustle, repeat. It’s a community of people who push themselves to be their best, both on and off the court, and that’s the driving ethos of MUNICIPAL.”

To add onto the excitement, MUNICIPAL will also preview a new product at this week’s event. Wahlberg will debut the brand’s first-ever court shoe, the CRT-01, giving fans an exclusive opportunity to get a first look ahead of its early 2027 release.

Live broadcast coverage of the event will begin at 7pm CT on Tennis Channel following Round of 16 coverage of the World Pickleball Championships.

Purchase tickets here.

Find more information about the participants below.

Mark Wahlberg is known for films such as The Fighter, Boogie Nights and The Departed, where he was nominated for an Academy Award, and hit television projects Entourage and Boardwalk Empire. Wahlberg also leads a business empire where he holds a stake in prominent companies including Flecha Azul Tequila and the event’s title sponsor, MUNICIPAL.

Jeremy Piven is an actor, comedian, and podcast host. His four-decade career across film and television has been recognized with three Emmy Awards and two Golden Globes for his role as super-agent ‘Ari Gold’ on HBO’s Entourage. Piven is also touring the country with his successful standup comedy show, and releasing this winter, he can be seen in his film The Performance, based on the short story by Arthur Miller.

John Isner is a retired American tennis star, former world No. 8 and 16-time ATP Tour singles champion who made history playing the longest match ever at Wimbledon in 2010. He currently co-hosts the popular tennis podcast Nothing Major alongside fellow former ATP professionals.

“Suga” Sean O’Malley is a former UFC Bantamweight World Champion and one of the most recognizable personalities in combat sports. Known for his explosive striking, colorful personality, and competitive spirit, Sean will bring that same energy from the Octagon to the pickleball court.

Isabelle Harrison is a professional WNBA player and former University of Tennessee standout who has built an impressive basketball career since being selected in the first round of the 2015 WNBA Draft. Beyond the court, she is a fashion, beauty and lifestyle influencer who uses her platform to inspire audiences through sports, wellness and personal style.

Richard Rawlings is an entrepreneur and media personality best known for starring in Discovery Channel’s Fast N’ Loud.  He’s the founder of Gas Monkey Garage, a Dallas-based global automotive and lifestyle brand. As a transcontinental road rally veteran, he’s a former Cannonball Run Record holder and a two-time winner of Gumball 3000.