A spot in the next round is at stake on Wednesday, when Alexander Blockx goes up against Karen Khachanov in the US Open quarterfinal. Alexander Blockx brings a 4-match winning streak into this one, 7-3 across the last ten. Karen Khachanov brings a 3-match winning streak into this one, 5-5 across the last ten.

Hold strength tells the story — 75.1% versus 72% on first-serve points in Blockx's favor. Blockx should have enough here, though Khachanov has the tools to make the scoreboard uncomfortable.