Karen Khachanov vs Alexander Blockx Prediction 9/9/2026 Today’s Tennis Picks

Karen Khachanov and Alexander Blockx face off in the quarterfinals of the 2026 US Open on Wednesday, September 9. Here’s our Karen Khachanov vs Alexander Blockx prediction. This preview will include a Karen Khachanov vs Alexander Blockx pick.

Karen Khachanov vs Alexander Blockx Preview

Karen Khachanov defeated 14th seed Learner Tien to make the US Open quarterfinals for the first time since 2022. In one of the most entertaining matches in this year’s tournament, Khachanov overpowered one of the dark horses in the tournament to five sets to progress.

Khachanov trailed by two sets to one, but finished the match strongly in the fourth and fifth sets to complete the upset in nearly four hours of play. In the victory, Khachanov hit 48 winners and 56 unforced errors in the match. He tallied 9 aces and 7 double faults. Khachanov landed 63% of first serves in play and won 73% of first serve points (77/105). He won 44% of second serve points (28/63) and saved 9 of 14 break points in the match. Khachanov’s best result at the US Open was reaching the semifinals in 2022.

Alexander Blockx is through to his first Grand Slam quarterfinal at the US Open thanks to a rousing four-set win over Francisco Cerundolo. The match took 43 games to decide. Blockx prevailed 6-3, 4-6, 7-5, 7-5 in three hours and 15 minutes.

In the victory, Blockx hammered 36 winners and 44 unforced errors. He tallied 10 aces and 7 double faults. Blockx landed 56% of first serves in play and won 74% of first serve points (57/77). The young Belgian won 48% of second serve points (29/61) and saved 14 of 17 break points in the match. Before this round, Blockx beat Barrios Vera, Trungelliti and Cobolli.

Karen Khachanov vs Alexander Blockx Head-To-Head

This will be their first career meeting.

Karen Khachanov vs Alexander Blockx Prediction

I think at this point, Blockx has earned the right to be favoured after beating two seasoned campaigners in Cobolli and Cerundolo. And I also thought he played so well against Alexander Zverev at Wimbledon, where he could have easily pushed that match to five sets. So, he’s clearly learned a lot since. If Blockx can keep Khachanov from getting comfortable on his forehand, he has a shot at beating the Russian. Khachanov brings a much heavier return and a bigger ball than the opponents Blockx has faced recently, and with neither player arriving fresh in the last eight, I’ll take Khachanov’s experience.

Nur Said's Pick: Khachanov in five sets