Top seed Dustin Johnson closed out a long day at the Dell Technologies Match Play by outlasting Adam Long in 18 holes. Half of the 32 matches went 18 holes, with six of them ending in ties. Justin Thomas at No. 2 was the only player among the top 4 seeds to lose on Wednesday on the first day of group play. Matt Kuchar built a 5-up lead and held on to beat him on the 16th hole. Collin Morikawa, the No. 4 seed, had to settle for a halve with J.T. Poston, while Jon Rahm at No. 3 needed an 8-foot birdie putt on the last hole to beat Sebastian Munoz.