Celebrities That Endorse Top Prediction Markets Like Kalshi, Novig, and Polymarket
By Drew Ellis
Published:
As prediction markets continue to gain popularity throughout the US, more celebrities are deciding to partner up with the top prediction markets.
In recent months, some of the biggest names in sports, television, and movies have appeared on promotional material for prediction markets, particularly sports prediction markets.
Here’s a look at some of the celebrities that are endorsing prediction markets in the US.
Athletes Heavily Invest in Kalshi
Kalshi has emerged as one of the largest prediction markets in the world and the US through its market liquidity. That hasn’t gone unnoticed by many noteworthy athletes and celebrities.
Early in 2026, Miami Heat NBA star Giannis Antetokounmpo announced his investment into Kalshi with a social media post promoting the app, which offers NBA predictions markets in dozens of states.
A series of high-profile athletes invested in Kalshi over the last year through Factory Holdings. That included the likes of:
- Kevin Durant
- Connor McDavid
- Breanna Stewart
- Richard Sherman
- Diana Taurasi
- Nneka Ogwumike
- Marshawn Lynch
Speaking of Lynch, he has appeared in some of the most recent adds for Kalshi. Another celebrity that has appeared in recent adds for the trading market is Timothee Chalamet, though his ads were somewhat vague without promoting just what Kalshi is.
For those that are new to Kalshi, you can use our Kalshi promo code RAD55 to receive $55 in bonuses when you make $25 in trades.
Sydney Sweeney Gets Eyes on Novig
There probably wasn’t a more publicized ad for prediction markets than the one that Novig released just before the start of the NFL season.
Actress Sydney Sweeney starred in the eye-catching ad where she displays strategically placed sporting equipment while promoting that Novig is a sports-only prediction market platform.
Sweeney not only is a promoter of Novig, but she signed on with the trading market as a strategic partner and equity holder.
This ad helped drive new traffic to Novig. If you don’t have an account with the trade, you can use our exclusive Novig promo code RAD50 to receive $50 in bonuses when you make a deposit of $10 or more.
Polymarket’s Star-Studded Ad with LeBron James
Polymarket scored one of the biggest celebrity endorsements as it secured LeBron James, the NBA’s all-time leading scorer, for their most recent ad campaign.
James leads a star-studded cast for their “Polymarket HQ” campaign. The 1-minute ad includes other celebrities and athletes like:
- Eli Manning
- Derek Jeter
- Sue Bird
- Spike Lee
- Alexandra Daddario
- Emily Ratajkowski
- John Leguizamo
- Craig Robinson
- Bob Stoops
- Richard Sherman
- Rajon Rondo
- Reggie Bush
LeBron is reportedly in a $15 million per-year partnership with Polymarket, starting in September.
New users to Polymarket can take advantage of our exclusive Polymarket promo code RAD25 to get $25 in bonuses when you deposit $10 or more.
Deposit $10 & Get a $25 Trade Bonus!
Drew Ellis has experience covering the gambling industries in North America and around the world. Decades of media experience provide him with the background to handle the complexities of different gambling laws and policies around the United States and North America. Ellis has primarily focused on online and retail casino news since 2021. Prior to working in the gambling industry, Ellis spent over 20 years in the newspaper industry, covering sports and the gambling. His work for The Mt. Pleasant Morning Sun and The Oakland Press was recognized with awards by the Associated Press and other media organizations. Drew has also contributed to the Detroit Free Press and the Associated Press.
