Michigan and Arizona, the two No. 1 seeds remaining in the 2026 NCAA Tournament Final Four, lead trader consensus with nearly identical implied probabilities after dominant paths through the bracket, including key upsets cleared in earlier rounds that opened their championship routes. Their semifinal clash heightens the tight race, as both boast balanced rosters, strong guard play, and momentum from recent victories, while Illinois edges UConn in the other matchup amid line movement from -2.5 to -1.5 favoring the Illini. No major injuries reported, but the single-elimination format underscores upset potential, keeping the field competitive with Illinois and defending contender UConn viable at 17% and 13% amid trader backing for backcourt edges and home-region support.