Spain's Albert Ramos-Vinolas converted 82.8 percent of his first-serve points while recording a 6-4, 6-2 upset of seventh-seeded Canadian Felix Auger-Aliassime on Sunday to advance to the third round of the BNP Paribas Open in Indian Wells, Calif.
It took the 33-year-old journeyman just 77 minutes to put away the 21-year-old Auger-Aliassime, who was a semifinalist last month at the U.S. Open.
Auger-Aliassime recorded seven aces but also committed seven double faults.
The score was tied at 2-2 in the second set when Ramos-Vinolas broke Auger-Aliassime's serve. He did it again later in the set en route to wrapping up his big victory.
Ramos-Vinolas will next face the winner of Sunday night's match between American Christopher Eubanks and 29th-seeded Nikoloz Basilashvili of Georgia.
Third-seeded Alexander Zverev of Germany hammered 12 aces while posting a 6-4, 3-6, 6-1 victory over American Jenson Brooksby.
Fifth-seeded Italian Matteo Berrettini racked up 11 aces without a single double fault while registering a 6-4, 7-5 win over Alejandro Tabilo of Chile.
Great Britain's Andy Murray saved eight of 10 break points while rallying past 30th-seeded Spaniard Carlos Alcaraz 5-7, 6-3, 6-2.
Alcaraz had 36 winners to Murray's 18 but the 18-year-old committed 42 errors to Murray's 29.
"He's obviously got so much potential, so much firepower and these conditions it's not easy to finish points off quickly, but he's able to because he has so much pace from the back of the court so I had to fight extremely hard, coming back from a set down," Murray said afterward. "I felt like in the second set he played maybe better.
"First set I felt like I had more of the opportunities but didn't get it so yeah, happy with the way I fought. He's a top-drawer young player."
Italy's Jannik Sinner, seeded 10th, defeated Australia's John Millman 6-2, 6-2; 12th-seeded Spaniard Pablo Carreno Busta was a 6-1, 6-4 winner over qualifier Emilio Gomez of Ecuador, and 13th-seeded Cristian Garin of Chile defeated American qualifier Ernesto Escobedo 7-5, 6-2.
France's Gael Monfils, seeded 14th, was a 6-4, 6-2 winner over Italy's Gianluca Mager. South Africa's Kevin Anderson outlasted 17th-seeded Italian Lorenzo Sonego 7-6 (7), 7-6 (3).
No. 22 Alex de Minaur posted a 6-4, 7-5 victory over qualifier Aleksandar Vukic in an all-Australian matchup; No. 25 Fabio Fognini of Italy recorded a 6-4, 4-6, 6-3 win over Germany's Jan-Lennard Struff, and 31st-seeded Taylor Fritz beat fellow American Brandon Nakashima 6-3, 6-4.
--Field Level Media