The San Antonio Spurs and New York Knicks meet in Game 4 of the NBA Finals tonight at 8:30 p.m. ET on ABC. Instead of only betting through a traditional sportsbook, users can claim top Spurs vs. Knicks prediction market promos and trade on Game 4 outcomes through leading prediction market apps.
Prediction markets give users another way to follow the NBA Finals and other major events across the sports world. The best prediction market apps like Polymarket, FanDuel Predicts, Novig, and ProphetX let users trade on game outcomes, series markets, player-based angles, and other event contracts. With more than $200 in total bonus value available, now is a strong time to compare the best NBA prediction market promos before the Spurs vs. Knicks Game 4 tips off. Check out the best Spurs vs. Knicks prediction market promos below.
| Best Prediction Market Apps | Spurs vs. Knicks Prediction Market Promos | Sign-Up Link |
|---|---|---|
| Polymarket | Deposit $20, Get $50 Trading Bonus | ACTION |
| Kalshi | Trade $10, Get $10 | ACTION |
| FanDuel Predicts | $25 Trading Bonus | Click Here |
| Novig | Spend $5, Get $50 in Novig Coins | ACTION |
| ProphetX | Get a 20% Purchase Match Up to $100 in Bonus Funds | ACTION |
NBA Prediction Market Promos: Claim Sign-Up Offers for Spurs vs. Knicks NBA Finals Game 4
Let’s break down the best NBA prediction market apps available for Spurs vs. Knicks Game 4 on Wednesday, June 10, 2026. These welcome offers can be used to trade on NBA Finals markets tonight or saved for other available prediction markets.
Polymarket
Sign up using the Polymarket promo code ACTION today and trade on the NBA Finals. This welcome offer provides a $50 bonus when new users make an initial deposit of $20 or more at Polymarket.
Polymarket is a useful option for users who want to trade yes-or-no event contracts tied to Spurs vs. Knicks Game 4, NBA Finals series markets, player outcomes, or other events. Prices can move before and during the game as market sentiment shifts.
| Polymarket Promo Code Offer | States Available | Polymarket Promo Code |
|---|---|---|
| Deposit $20, Get $50 Trading Bonus | AL, AK, AR, CA, CO, CT, DE, FL, GA, HI, ID, IN, IA, KS, KY, LA, ME, MN, MS, MO, NE, NH, NM, NJ, NY, NC, ND, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, VA, WA, WV, WI, WY, DC | ACTION |
FanDuel Predicts
Create a new account today with the FanDuel Predicts promo code to score a $25 welcome bonus. To snag the bonus, simply register with the platform. There is no actual code to input, just register with the link below.
| FanDuel Predicts Promo Code Offer | States Available | FanDuel Predicts Promo Code Sign-Up Link |
|---|---|---|
| Sign Up & Get $25 Bonus | AK, AL, CA, DE, FL, GA, HI, ID, MN, ND, NE, NM, OK, RI, SC, SD, TX, UT | Click Here |
Kalshi
Create a new account today with the Kalshi promo code ACTION to claim a $10 welcome bonus. To unlock the offer, simply complete $10 in total trades.
Kalshi gives users access to NBA Finals prediction markets, including game winners, series markets, margin-based contracts, and other available basketball outcomes. Use the $10 bonus after completing your qualifying trades to keep exploring Spurs vs. Knicks Game 4 or other live events.
| Kalshi Referral Code Offer | States Available | Kalshi Promo Code |
|---|---|---|
| Trade $10, Get $10 | AL, AK, AR, CA, CO, CT, DE, FL, GA, HI, ID, IN, IA, KS, KY, LA, ME, MN, MS, MO, NE, NH, NM, NJ, NY, NC, ND, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, VA, WA, WV, WI, WY, DC | ACTION |
Novig
When you register today with the Novig promo code ACTION, you can take advantage of one of the best Spurs vs. Knicks prediction market promos available. Make a $5+ purchase at Novig and receive $50 in Novig Coins to use on predictions.
Novig Coins give new users a low-cost way to try prediction markets around Spurs vs. Knicks Game 4. Users can look for markets tied to the moneyline, spread-style outcomes, totals, player-focused markets, or live NBA Finals movement.
| Novig Sign-Up Bonus | States Available | Novig Promo Code |
|---|---|---|
| Spend $5, Get $50 in Novig Coins | AK, AR, CA, FL, GA, HI, IL, IN, IA, KS, KY, ME, MA, MN, MO, NE, NH, NC, ND, OH, OK, OR, SC, SD, TX, VT, VA, DC, WI, WY | ACTION |
ProphetX
Sign up now with the ProphetX promo codeACTION to get started at one of the best Spurs vs. Knicks prediction market promos. Once you make your first purchase at ProphetX, you can receive a 20% match on your purchase. To secure the maximum $100 bonus, users must make an initial purchase of at least $500.
| ProphetX Sign-Up Bonus | States Available | ProphetX Promo Code |
|---|---|---|
| Get a 20% Purchase Match Up to $100 in Bonus Funds | AL, AK, AZ, AR, CA, CO, CT, DE, FL, GA, HI, ID, IL, IN, IA, KS, KY, LA, ME, MD, MA, MI, MN, MS, MO, MT, NE, NV, NH, NJ, NM, NY, NC, ND, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, VA, WA, WV, WI, WY | ACTION |
