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Polymarket promo code SPORTSLINE: Get $25 bonus for Sixers-Knicks, Thunder-Spurs, NBA Opening Night

New Polymarket users can get a $25 bonus after depositing $10 or more to make trades

ByJason Hall·Updated: Oct 20, 2026 6:14PM ET·4 min read

The Polymarket promo code SPORTSLINE gives new users a $25 bonus after they sign up and deposit at least $10, which includes NBA prediction markets. The 2026-27 NBA season will begin with three big games on Opening Night Tuesday. Click here to get started at Polymarket and claim your $25 bonus after depositing $10 with the Polymarket promo code SPORTSLINE: 

The Oklahoma City Thunder will face the San Antonio Spurs in a rematch of the Western Conference Finals at 9:30 p.m. ET. The Spurs defeated the Thunder in seven games before losing to the New York Knicks in the NBA Finals.

The defending NBA champion Knicks will also be in action hosting the Philadelphia 76ers at 7:00 p.m. ET. Visit the Polymarket promo code review page for the terms and conditions of this offer.

You can sign up for Polymarket, one of the top prediction market sites, using the steps listed below. This offer is only available for new users.

After depositing $10 with the Polymarket promo code, new users will be given a $25 trading bonus: 

Thunder guard Shai Gilgeous-Alexander won his second consecutive NBA MVP award in 2026, averaging 31.1 points, 6.6 assists and 4.3 rebounds. The Thunder finished the regular season with a 64-18 record, the best among NBA teams, before being defeated by the Spurs in the Western Conference Finals.

Spurs center Victor Wembanyama averaged a career-best 25.0 points and 11.5 rebounds during the 2025-26 season. Wembanyama will be on a revenge tour after San Antonio was defeated in five games by the Knicks, falling short of his first career NBA championship in his third season.

The Spurs are currently trading up to $0.56 per share to win at home, while the Thunder are trading at $0.45 per share, at Polymarket. Trade on NFL games and more with the Polymarket promo code SPORTSLINE:

The Knicks went on a historic playoff run to win their first NBA championship since 1973. New York lost a total three games during the postseason, with point guard Jalen Brunson averaging 32.6 points, 4.6 assists and 4.2 rebounds against the Spurs to win NBA Finals MVP.

The Sixers were one of the busiest teams during the offseason, acquiring All-Star Jaylen Brown in a trade with the Boston Celtics and signing NBA all-time leading scorer LeBron James. Philadelphia finished the 2025-26 season seventh in the Eastern Conference with a 45-37 record before being swept by the Knicks in the Eastern Conference Semifinals.

The Knicks are trading at $0.62 per share to win five or more points at home, while the Sixers are trading at $0.49 per share to lose by four or fewer points or win outright, at Polymarket. Trade on NFL games and more with the Polymarket promo code SPORTSLINE:

Polymarket offers different ways to keep its users safe with risk management tools like trading breaks, a voluntary opt-out feature and funding limits.  

Prediction Markets are regulated by the Commodity Futures Trading Commission (CFTC) - an independent agency of the U.S. federal government.

Event contracts trading involves a risk of substantial loss and is not suitable for all investors. Participation in prediction markets is subject to applicable eligibility requirements. Participation may be restricted or prohibited in certain jurisdictions and participants are responsible for ensuring their participation complies with applicable laws and regulations in their jurisdiction.

Written by Jason Hall

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