Noppert has represented the Netherlands in the PDC World Cup of Darts on four occasions, reaching the semi-finals in 2022 with teammate Dirk van Duijvenbode.

Noppert impressed during 2016 Grand Slam of Darts, beating Mensur Suljović and Nathan Aspinall before a narrow defeat in the last 16 to two-time PDC World Champion Gary Anderson 10–9.

In 2017, Noppert was able to reach the final of the 2017 BDO World Darts Championship, defeating defending champion Scott Waites on his way there.

[10] Noppert reached his maiden PDC major semi-final at the Players Championship Finals, where he lost 11–3 to eventual champion Daryl Gurney.

[11] Noppert made his PDC World Championship debut at the 2019 edition, entering the tournament as the highest ranked non-seed on the 2018 Pro Tour Order of Merit.

[14] Noppert also made his debut at that year's World Matchplay but he was beaten 10–6 by defending champion Gary Anderson in the opening round.

[17] Noppert represented the Netherlands in the PDC World Cup of Darts for the first time at the 2020 edition, partnering Van Gerwen.

[21] Noppert was victorious in his opening match at the 2022 World Championship, winning three consecutive sets to defeat debutant Jason Heaver 3–1.

[23] Noppert was set to make his Masters debut at the end of January but withdrew from the tournament to be present for the birth of his first child in the Netherlands.

He defeated Brendan Dolan, Daryl Gurney, and Dirk van Duijvenbode en route to the semi-finals, where he was beaten 17–11 by Gerwyn Price.

[28] On the Pro Tour, Noppert won his third PDC ranking title at Players Championship 19, coming back from 6–3 down to win the final 8–6 against Andrew Gilding.

[40] In April, he won his sixth PDC ranking title by beating reigning world champion Luke Humphries 8–6 to win Players Championship 8.

[43] He returned to winning ways at the World Masters by reaching the semi-finals of the tournament, including a victory over defending champion Stephen Bunting in the quarter-finals.