Kalshi and Polymarket launch bonus promos for World Cup semifinals and MLB All-Star Game

Prediction‑market platforms Kalshi and Polymarket announced a series of new welcome bonuses tied to high‑profile sports events. Kalshi is offering a $10 sign‑up bonus for the France‑Spain World Cup semifinal (promo code NOLA) and a $10 bonus for the England‑Argentina semifinal (promo code DENVER). Additional Kalshi codes include SYRACUSE ($10), ALCOM15 ($15), SOUTH15 ($15) and NYPMAX ($15) for the 2026 MLB All‑Star Game. To qualify, new users must be 18+, reside in a participating U.S. state, make a minimum $1 deposit and trade $10 (or $15) on the platform.

Polymarket released several $50 trading‑bonus codes for the same events. Code CUSE unlocks $50 for the All‑Star Game after a $20 deposit. Codes MASS, OREGON and SILIVE each provide a $50 bonus for the England‑Argentina semifinal, also requiring a $20 deposit. All offers are available to new U.S. accounts that complete identity verification and are subject to state‑by‑state eligibility.

Both platforms emphasize that the bonuses are non‑withdrawable cash used for trading on their peer‑to‑peer prediction markets, which cover sports, politics and other real‑world outcomes.