Polymarket and Kalshi launch World Cup prediction market promo offers

Prediction‑market platforms Polymarket and Kalshi have each introduced welcome‑bonus promotions tied to the FIFA World Cup. Polymarket offers new users a $50 bonus after a $20 deposit when the promo code STIFFS is entered, applicable to any of the tournament’s matches. Kalshi provides a $15 bonus after $10 in trades when the promo code ELITE15 is used, allowing users to buy contracts on World Cup outcomes and other categories.

Both promotions require sign‑up, age verification and are limited to eligible U.S. users, reflecting the platforms’ focus on expanding participation in sports‑related prediction markets during the tournament’s group stage.