With a 6-4, 6-2 victory over American Mackenzie McDonald in his opening match at Indian Wells on Saturday night, Daniil Medvedev has now won 17 of his last 18 matches—and perhaps even more impressively, 25 of the last 26 sets he’s played.

“I’m actually really pleased because usually I haven’t played well in Indian Wells, and wasn’t playing that well in practices before,” Medvedev said after his one-hour, 12-minute win over McDonald, in which he never even faced a break point.

Medvedev is 17-1 since the start of August, going 5-0 to win the Masters 1000 event in Canada, 3-1 in Cincinnati (falling to Andrey Rublev in the semifinals, 2-6, 6-3, 6-3), 7-0 to win the US Open, 1-0 at Laver Cup and now 1-0 so far at Indian Wells.

He’s 25-1 in sets since the start of the US Open, the only set he’s dropped being the third set of his 6-3, 6-0, 4-6, 7-5 quarterfinal victory over Botic van de Zandschulp in Flushing Meadows (and he actually had a 0-30 opening in the Dutchman’s first service game of that third set before eventually closing it out in four sets).

Up next for the No. 1-seeded Medvedev: No. 27 seed Filip Krajinovic.