The "Showdown in St. Louis" between Levon Aronian and Hikaru Nakamura was tied after four classical games, so the winner in tonight's best-of-16 blitz match would win the event and $60,000, while the loser would "only" get $40,000. After a shaky first couple of games, Nakamura felt he got in the zone, while Aronian kept getting into time trouble and all the difficulties it tends to generate. Afterwards Aronian opined that while he's a good blitz player when it's 4'+2", 3'+2" - the time control used in this match - was a bit too fast for him. In the end Nakamura won 9.5-6.5, clinching match victory with two games to spare.
In the GM norm event Sam Sevian drew his last game (a long game, not a quick handshake deal as in his previous game with the black pieces) and finished in clear first with 7.5/9, a ton of rating points and the grandmaster title. He is the youngest U.S. player to achieve the title, and the sixth-youngest of all time.
Congrats to him, to Nakamura, and also to Michael William Brown who made norm in the concurrent IM norm event as well!