Australia's eighth-seeded title hope continued his best start to an Open in four years with a 6-2 6-4 6-3 disposal of American qualifier Tristan Boyer on Thursday.
Revered for his lightning speed, de Minaur showcased his vastly improved service game and net play in another super impressive display on Rod Laver Arena.
He clocked one serve at 217kph, fired down six aces and won almost 90 per cent of points after landing his first serve, while breaking Boyer six times in a thoroughly dominant victory.
De Minaur's flying start matches his 2021 run to the last 32 without dropping a set. (Lukas Coch/AAP PHOTOS)
Boyer himself flew out of the blocks, breaking de Minaur in the opening game of the match.
But the world No.136, contesting only his second grand slam match, would have been the lowest-ranked player de Minaur had ever lost to at Melbourne Park, and he never seriously threatened an upset.
From 2-0 down, de Minaur reeled off seven straight games to seize command and, to chants of "Demon, Demon, Demon" from the joyous crowd, ultimately prevailed in a tick under two hours, finishing with a blazing airborne forehand winner.
DEMON-AWE— #AusOpen (@AustralianOpen) The No.8 seeded Aussie cruises into the third round of #AO2025, defeating American Tristan Boyer 6-2 6-4 6-3 in under two hours.@wwos • @espn • @eurosport • @wowowtennis • #AusOpen • #AO2025 pic.twitter.com/uNXfT9ttUuJanuary 16, 2025
Chasing a fourth straight grand slam quarter-final berth and still unbeaten in 2025, de Minaur was a most gracious winner.
"Obviously (Boyer was) somebody completely new for me to be on the other side of the court against, it is never easy.
"He is a dangerous player, plays aggressive and takes the racquet out of your hand.
"My team did some scouting and let me know a couple of things and ultimately it was about me bringing in the best version of myself.
"That's what I needed to do and I am happy with that."
In matching his 2021 effort in reaching the Open's last 32 without dropping a set, de Minaur next faces Argentina's world No.32 Francisco Cerundolo on Saturday.
"I'll be ready for a battle," he said.
"It will be tough. He is a quality opponent, lots of firepower, great forehand.
"He has taken some big scalps and hopefully I am not the next one."
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