Kalshi, a predictions market platform, is offering a welcome promotion for new users interested in trading on the 2026 British Open. With the promo code NYPMAX, first-time users can trade $10 and receive $15.

The platform allows users to trade contracts on various sports markets, including NBA Summer League, WNBA games, MLB matchups, and international soccer matches. To qualify for the $15 bonus, users must sign up with the promo code NYPMAX, verify their account, and complete at least $10 in trades.

Kalshi operates in numerous states and territories across the U.S., including Alabama, California, New York, and Texas. However, it is not available in Arizona, Illinois, Massachusetts, Maryland, Michigan, Montana, Nevada, and Ohio.

Users must be at least 18 years old and possess a legal U.S. residential address within an applicable state, Washington D.C., or U.S. territory. The British Open, a golf tournament, is known for its links-style courses where weather conditions, such as wind and precipitation, can significantly impact play and create dynamic trading opportunities.