The Australian No.1 opted to shake off his disappointing French Open campaign by getting "straight back on the bike'' and entering this week's ATP event in s-Hertogenbosch.
And his bid to find the right groove on his favoured surface with Wimbledon fast approaching seems to be paying dividends as De Minaur easily saw off French qualifier Benjamin Bonzi 6-2, 6-4 to reach the last four in 68 minutes on Friday.
It followed the second seed's tough battle to sink young American qualifier Martin Damm in a hard-fought round-of-16 encounter earlier in the week.
"I would be very happy if I can maintain this level," said De Minaur, who won the 's-Hertogenbosch title in 2024.
"It was a very good match today. A lot of confidence because I felt very good out here, and hopefully I can bring the same level tomorrow.
"I think today was a very, very good match by me. I had to play at an extremely high level to beat someone like Benjamin. He's a very good player on this surface. He's a hell of a competitor."
"Demon", who won the ATP 500 trophy in Rotterdam in February, still has a chance to become just the second player - after local hero and former Wimbledon champion Richard Krajicek in 1997 - to win both Dutch ATP tour titles in the same season.
But first the 27-year-old must overcome another former winner in Frenchman Adrian Mannarino, who edged past China's No.1 Zhizhen Zhang to book his last-four spot.
Head-to-head, De Minaur leads the Parisian 4-1, but on grass they are tied 1-1, so it promises to be a far tougher test.
14°C