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New users on the Polymarket prediction platform can use the promo code MASS to unlock a $50 trading bonus following a minimum $20 initial deposit.
New users on the Polymarket prediction platform can access a $50 trading bonus by using the promo code "MASS" during the account registration process [2]. This offer requires a minimum initial deposit of $20 to activate the bonus funds, which can then be applied to various prediction markets across sports, politics, and the economy [2].
Key takeaways
To utilize the "MASS" promo code, new users must visit the official Polymarket website or mobile application and enter the code into the designated referral or invite field during the sign-up process [2]. Following registration, users are required to complete an identity verification process to comply with platform regulations [2]. Once the $20 minimum deposit is processed, the $50 bonus is credited to the account, providing users with increased trading capital for active markets [2].
Polymarket functions as a peer-to-peer trading platform where participants buy and sell positions on the outcomes of real-world events [1]. Unlike traditional sportsbooks, the odds on Polymarket are set by the collective behavior of traders, meaning they update in real time as market sentiment shifts [1]. Because the platform relies on this peer-to-peer structure, it is often noted for its responsive price discovery, particularly during fast-moving events like playoff sports [2].
The introduction of promotional codes like "MASS" serves as an entry point for users interested in prediction markets, which have gained visibility as a method for gauging consensus on event outcomes [1]. As these platforms continue to operate within the United States, they provide an alternative to traditional exchanges by allowing users to trade on the probability of specific occurrences [1]. While both Polymarket and competitors like Kalshi offer similar promotional incentives for new registrations, the platforms differ in their underlying mechanics, with Polymarket emphasizing a peer-to-peer model that aims to reflect live market consensus [1, 2]. Users are encouraged to participate only where legally permitted and to be aware that trading on prediction markets involves financial risk [1].
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AI-assisted synthesis by the TrendWatcher Editorial Desk · sourced from 2 outlets · May 31, 2026 · How we report
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