Polymarket’s CUSE Code Gives New Users $20 Bonus and Moves MLB Odds

The CUSE promotion posts $20 in tradable funds after a $10 deposit so bonus-backed orders can immediately change peer-to-peer prices and raise questions about state eligibility and consumer protections.

Overview

Polymarket is running a publisher-verified referral code called CUSE that credits qualifying new U.S. accounts with $20 in bonus trading funds after identity verification and a $10 first deposit.
Reporters observed the credited balances become immediately tradable on the platform, with Saturday markets showing the Mets-Pirates moneyline near 44¢ for New York and 57¢ for Pittsburgh and Sunday’s Yankees-Braves near 55¢ for New York and 46¢ for Atlanta.
The bonus works only when users enter CUSE at registration, complete ID/residency checks, and fund the account, and the credited funds can be used across Polymarket’s U.S. catalog including MLB, politics, crypto, and other markets.
CUSE is one of several state-targeted referral codes distributed through local publishing partners to speed new-account growth, which concentrates short-term trading volume on the peer-to-peer orderbook rather than routing trades against a single house.
Earlier promotions offered larger credits and waitlist changes, and the current pattern of instant, tradable bonuses raises persistent questions about enforcement of state exclusions, the timing and withdrawal limits on promo funds, and whether the activity will produce lasting users or only temporary price swings.