[5] Van den Bergh qualified for the first European Tour event, the German Darts Championship and lost 6–2 in the first round against Ronnie Baxter despite averaging 102.94.

[6] Van den Bergh won three youth tour titles during the year and also reached the last 16 of the Under-21 World Championship, where he lost 6–3 to Robinson.

[9] He qualified for the inaugural World Series of Darts Finals but was beaten 6–3 by Max Hopp in the first round in what was Van den Bergh's televised debut.

[11][12] He qualified for the 2016 World Championship through the European Pro Tour Order of Merit and danced on to the stage before his first round encounter with Ian White.

[20] Van den Bergh's first round match at the 2017 World Championship went to a deciding set and was on throw, but he missed two darts at double eight to send it to a tie-break, allowing Cristo Reyes to step in and win 3–2.

At the 2018 PDC World Darts Championship, Van den Bergh reached the quarter-finals for the first time, where he lost 5–4 to eventual champion Rob Cross in a tight match.

In the 2020 PDC World Darts Championship, Van den Bergh scored high averages in defeating Josh Payne, Luke Woodhouse and Adrian Lewis, before losing to Nathan Aspinall in the quarter-finals.

At the 2020 PDC World Darts Championship, Van den Bergh reached the quarter-finals for the second time, there he lost to Nathan Aspinall 5–3.

Then, after spending the whole first COVID-19 pandemic lockdown in the UK, staying at Peter Wright's house, Van den Bergh pulled off the biggest achievement of his career by winning the 2020 World Matchplay on his debut, after defeating Nathan Aspinall, Joe Cullen, Adrian Lewis, Glen Durrant and Gary Anderson to win the £115,000 top prize, and move him into the Top 10 in the world for the first time.

At the 2022 PDC World Darts Championship, Van den Bergh suffered a shock second round defeat to Florian Hempel.

[31] Van den Bergh won his second major title at the 2024 UK Open, beating World Champion Luke Humphries in a deciding leg in the final.

[32] Van den Bergh reached the quarter-finals at the 2024 World Matchplay, where he threw a nine-dart leg in his first round victory over Martin Schindler,[33] before losing to eventual champion Luke Humphries.