Dusan Lajovic played almost flawlessly on Thursday to beat eighth seed Karen Khachanov 6-1, 6-2 in 62 minutes for a place in the Hamburg European Open quarter-finals. Lajovic, who hit 15 winners to extend his perfect ATP Head2Head record to 4-0 against Khachanov (8-0 in sets), will next play second seed Stefanos Tsitsipas or qualifier Pablo Cuevas.
Lajovic broke for a 3-1 lead in the first set when he moved Khachanov around the court to gain an error. Khachanov’s frustration built up after he struck a forehand into the net to gift Lajovic the sixth game. Lajovic won 16 of his 19 service points in the 26-minute opener.
There were five service breaks in a row in the second set, which turned in Lajovic’s favour once Khachanov hit a forehand wide — one of 20 unforced errors for the Russian — on break point at 2-2. Lajovic extended his lead to 5-2 with a fine crosscourt forehand winner and in the next game the Serbian closed out his 13th victory of the season with a forehand approach winner.