As the New York Knicks take on the San Antonio Spurs in the NBA Finals, eligible fans can use Polymarket promo code STIFFS to grab a $50 bonus. New players can secure this $50 sign-up bonus after making an initial deposit of at least $20. Click here to start signing up.

This bonus can be applied directly to the Knicks versus Spurs prediction markets, as well as any NBA game scheduled throughout this week or the current round of the playoffs. Additionally, this trading bonus allows users to explore other major prediction markets. Polymarket is raising the bar for first-time players.

Polymarket Promo Code STIFFS Delivers $50 Bonus

Polymarket Promo CodeSTIFFS
New User Offer$50 sign-up bonus
Terms and Conditions18+ and Present in the US
Bonus Last Verified OnJune 3, 2026

New Polymarket customers are eligible to receive a $50 sign-up bonus when they create an account ahead of the highly anticipated New York Knicks and San Antonio Spurs showdown. To unlock this welcome offer, you simply need to register and make an initial deposit of at least $20. Once the qualifying deposit is complete, the $50 bonus will be credited to your account, ready to be traded on the Knicks-Spurs prediction markets or any other NBA post-season matchup.

Please note that to take advantage of this Polymarket promo code, participants must be completely new Polymarket customers. Additionally, users must be 18 years of age or older and physically present within an eligible Polymarket state to claim the bonus and begin trading.

Knicks vs. Spurs Game 1 Probability

TeamMarket Probability
San Antonio Spurs64%
New York Knicks37%

When evaluating which team presents the stronger trading position, a quick dive into their playoff performance highlights an overall statistical advantage for the visitors. Throughout the playoffs, New York has consistently outpaced San Antonio in broad team efficiency. The Knicks also hold their own in securing possessions, capitalizing on extra opportunities on the floor. This underlying efficiency highlights why the underdog brings significant value to this market, despite San Antonio holding the higher market probability.

How to Activate Polymarket Promo Code STIFFS

Claiming your welcome bonus ahead of the game is a quick and straightforward process. Follow these simple steps to activate the offer and get your account ready for the playoffs:

  1. Create Your Account: Register for a new account by providing standard personal information.
  2. Verify Your Identity: Submit the required proof of identification to ensure your account is secure and compliant.
  3. Apply the Code: When prompted during the registration process, be sure to enter the promo code STIFFS to lock in your eligibility.
  4. Make a Deposit: Complete your setup by making a first-time qualifying deposit of at least $20.

Once your initial deposit clears, your $50 bonus will be activated and applied to your account, ready for you to use on the Knicks-Spurs matchup, other NBA post-season action, or even MLB and NHL prediction markets.