The San Antonio Spurs are heavily favored to cover the 10.5-point spread in Game 3 of the NBA Finals, according to the sole prediction market tracking this event. Polymarket traders assign a 67% probability to the Spurs winning by more than 10.5 points, reflecting confidence in their home-court advantage and recent form. The market has attracted $5,000 in volume, a modest sum that suggests niche interest but limited liquidity.

No other platforms—Kalshi or Manifold—offer contracts on this specific spread, leaving Polymarket as the sole source of probabilistic insight. The absence of cross-platform data means the 67% figure should be interpreted with caution, as single-market odds can be influenced by small trader pools. No specific external trigger was identified in today's news flow to explain the current probability.

The implied 33% chance that the Knicks either win outright or lose by fewer than 10.5 points highlights the market's view of a potential upset, though the Spurs' strong defensive metrics and home-court edge underpin the favorite status. With Game 3 set for June 14, the odds may shift as tip-off approaches and more bettors enter the market.