Spurs Won Game 3 at MSG. Series 2-1. Game 4 Tonight: What Prediction Markets Say

Prediction market prices as of June 9, 2026. Game 4 tips tonight at Madison Square Garden, 8:30 PM ET.

Victor Wembanyama scored 32 points and the San Antonio Spurs won at Madison Square Garden. The 2026 NBA Finals are not over.

Spurs 115, Knicks 111. Series: New York leads 2-1. The championship market shifted by 16 percentage points overnight.

What the Market Did After Game 3

Before this series started, the Spurs were trading at 64% to win the championship. After New York won the first two games on the road, that flipped entirely — the Knicks climbed to 78%, the Spurs fell to 22%.

Game 3 changed that. After Wembanyama's 32-point, 8-rebound, 6-assist performance — the second-youngest player to put up 30-5-5 in the Finals after Magic Johnson — the Spurs have moved to approximately 38% on Kalshi and Polymarket. The Knicks sit around 62%.

The Spurs aren't back to even. But they went from one-in-five to roughly two-in-five in a single game.

Track live NBA Finals prediction market prices across Kalshi and Polymarket at predictions.io/lobby/nba.

The Road Team Trend

Every game in this series has been won by the visiting team. Three for three. The Knicks won Games 1 and 2 in San Antonio. The Spurs won Game 3 in New York.

That streak extends further. The road team has won five consecutive playoff games for both franchises combined — a pattern that shouldn't be statistically meaningful but is sitting at the center of every pregame conversation heading into tonight.

The market prices this as noise, not signal. New York remains a slight home favorite in Game 4 despite not having won a game at MSG yet in this series. Traders are pricing the 2-1 series lead and the Knicks' 13-game playoff winning streak that Game 3 ended — not a home/road trend that will eventually correct.

What's Actually at Stake Tonight

Wembanyama erased a seven-point halftime deficit almost by himself in the fourth quarter, finishing with three blocks and two steals alongside the scoring line. Stephon Castle added 23 points including a clutch three-pointer late.

If the Spurs win Game 4, they even the series at 2-2 heading back to San Antonio for Game 5. At that point, markets would likely flip the Spurs back to narrow favorites — they'd have home-court advantage again and the momentum from winning two straight. The Knicks haven't trailed in this series yet.

If the Knicks win tonight, they go up 3-1. Only one team has ever come back from 3-1 in the NBA Finals: the 2016 Cleveland Cavaliers. At 3-1, the Knicks' championship price would likely move above 90%.

The $413 million in trading volume on Polymarket's NBA champion market alone makes this the most liquid team sport prediction market contract in history. Game 4 will move that number.

Track live NBA Finals prediction market prices across Kalshi and Polymarket at predictions.io/lobby/nba.

Short Version

Spurs won Game 3 at MSG 115-111 — Wembanyama 32/8/6. Knicks still lead series 2-1 but championship market shifted from Knicks 78%/Spurs 22% to Knicks 62%/Spurs 38% overnight. Road team has won all three games. Game 4 tonight at MSG, 8:30 ET. Knicks win = near-certain championship. Spurs win = series tied heading back to San Antonio. Live prices at predictions.io/lobby/nba.

Track live NBA Finals prediction market prices across Kalshi and Polymarket at predictions.io/lobby/nba.

Last updated: June 9, 2026. Sources: Polymarket, Kalshi, ESPN, CBS Sports, DeFi Rate.