The rest, as they say, is history, as he became the lowest-ranked ATP champion on tour this season, and the first Dutch winner at s-Hertogenbosch since 2003.
On Monday, Van Rijthoven made a winning Grand Slam debut, advancing to a Wimbledon second round meeting with American No.15 seed Reilly Opelka with a straight-sets success over Federico Delbonis.
Here’s what you need to know about the Dutchman, who is up to No.104 in the world and rising fast.
No ordinary title run
Van Rijthoven didn’t just spring a surprise by winning his home tournament; it was how he did it that was phenomenal.
His only previous main draw appearance at tour level came in 2016 when he played the 250 event in Winston Salem as a lucky loser.
Six years later, Van Rijthoven claimed a maiden tour-level victory over Matthew Ebden of Australia before taking out world No.14 Taylor Fritz, No.66 Hugo Gaston, No.9 Felix Auger-Aliassime and No.2 Medvedev to lift the trophy at s-Hertogenbosch.
“Amazing week. You destroyed the No.2 in the world in straight sets in the final, so I think it must be a good feeling,” joked Medvedev during the trophy ceremony.