NBA Rookie of the Year is a active prediction market event on Polymarket with 28 markets, $3.4M total volume, and $257.3K in liquidity. Key markets: Will Player E win the 2025–26 NBA Rookie of the Year award?; Will Player F win the 2025–26 NBA Rookie of the Year award?; Will Player J win the 2025–26 NBA Rookie of the Year award?.