NCAA tournament championship odds from prediction markets
March Madness is one of the most actively traded sporting events on prediction markets. Unlike sportsbook odds that include a built-in house edge, prediction market prices directly reflect the crowd's unbiased probability estimate for each team. Because sports markets are structurally impossible to insider trade, these aggregated odds represent the purest form of crowdsourced consensus available.
Prediction market odds update in real time throughout the tournament. Check the live markets below for the current consensus favorite and every team's championship probability.
Prediction markets aggregate information from thousands of traders with real money at stake, making them highly efficient at pricing tournament outcomes. They tend to be more accurate than individual bracket predictions, though upsets are always possible — that's what makes March Madness exciting.
Polymarket offers NCAA tournament markets in USDC, while Kalshi offers regulated event contracts for US residents. Both platforms allow you to buy and sell shares at any time during the tournament.
