Kalshi is dangling a $55 bonus for new users who open an account, verify it and trade at least $25 in eligible event contracts within seven days. The promo code AL55 ties the offer to NBA Opening Night, when the New York Knicks face the Philadelphia 76ers at 6 p.m. ET.
The pitch lands at a moment when the game already has a market. Kalshi’s contracts put the Knicks around $0.63 and the 76ers around $0.37, which means a $0.63 Knicks winner contract would pay $1.00 if New York wins. That also puts the Knicks at a 62% implied chance of winning tonight, while Philadelphia sits at 39%.
For new users, the math is straightforward but not risk-free. The welcome offer requires at least $25 in eligible trades, and Kalshi’s prices run from $0.01 to $0.99, so a trader is still putting real money into the market to qualify. In the simplest case, a $25 qualifying spend could buy about 39 contracts at $0.63, leaving little room for fees or price moves before the offer is complete.
What makes tonight more than a promo is the shape of the matchup itself. The Knicks and 76ers split their season series 2-2 last year, and the road team won every game, which helps explain why the market is not treating this as a runaway even with New York favored. Kalshi also has New York at 48% to win by more than 5.5 points, a smaller margin than the straight-up line suggests.
Kalshi is legal and regulated as a Designated Contract Market by the Commodity Futures Trading Commission, and it says it is not a sportsbook and is not subject to state gambling laws. That matters because the same platform is also being used for broader prediction markets across the NBA, the NFL and other events, including a California sign-up path tied to promo code CA for NBA Opening Night and the NBA all season long.
The point for readers is simple: the bonus is real, the deadline is tonight, and the trade is the price of entry. If the Knicks and 76ers start the season as one of the night’s most watched markets, Kalshi is trying to turn that attention into new accounts before the opening tip.
