Pete Sampras Faces Fan Backlash for Kalshi US Open Betting

Pete Sampras has sparked a major controversy by appearing in a commercial for the prediction market platform Kalshi during the 2026 US Open. The 14-time Grand Slam champion's first new brand partnership in over a decade has been labeled 'classless' and a 'fall from grace' by disappointed fans.

Fans took to social media to express their shock and disappointment. One user called the ad a 'huge blot' on Sampras's legacy, stating the former world number one had gone from tennis GOAT to being 'on the paycheck of a gambling company.' Another simply labeled the spot 'gross.' The criticism centers on Sampras lending his iconic voice and image to a platform featuring sports prediction markets, which many view as a form of sports betting.

Sampras narrated the 30-second commercial, which aired throughout the tournament. It features classic footage from his playing career as he reflects on defying odds. Kalshi held the title of official prediction market partner for the US Open. This partnership marks a surprising return to the spotlight for Sampras, who has lived a quiet family life with his wife, actress Bridgette Wilson, since retiring after the 2002 US Open.

The ad 2026, follows Sampras's journey from winning his first major to handling the pressure of sustained success. Its tagline invites viewers to 'Don’t just accept the odds. Make them.' The commercial's release was timed just days before the men's and women's finals at Flushing Meadows.

Kalshi's markets were active during the event. One user reportedly won $3.8 million by correctly predicting American Ben Shelton would defeat world number three Carlos Alcaraz in a marathon match that ended after 3:30 a.m. Current probabilities shown during the ad gave German Alexander Zverev a 50% chance of winning the tournament, with Shelton at 37%, Frances Tiafoe at 9%, and Karen Khachanov at 7%.

His commercial was part of a dual campaign from Kalshi that also featured NFL star Marshawn Lynch. Lynch promoted the platform in a separate ad posted on September 10, 2026. Sampras's involvement was particularly noted because prediction markets did not exist during his peak playing years in the 1990s. The irony of a man whose 14 Grand Slam titles were once considered unbeatable now discussing odds was not lost on observers.

Many expressed a desire to see the legend more involved in the sport itself. Fans contrasted his absence with the ongoing court-side presence of his former rival Andre Agassi, who has worked in coaching and media. There is a clear sentiment that followers would prefer to see Sampras in a role such as a coach, commentator, or even as a Grand Slam trophy presenter rather than as a paid endorser for a prediction platform.

Sampras's influence as a pioneer of the big-serving American game remains significant. His style was carried forward by champions like Andy Roddick and is seen in the powerful game of current star Ben Shelton. Yet this recent commercial venture has shifted the conversation from his on-court legacy to his off-court choices.

• Key Takeaways:
• Pete Sampras starred in a controversial ad for prediction platform Kalshi during the 2026 US Open.
• The partnership has drawn widespread fan criticism, described as a stain on his legacy.
• This is his first new brand endorsement in over ten years.
• Kalshi was the official prediction partner of the tournament, where one user won $3.8 million.