In 2023 he represented Switzerland again at 2023 PDC World Cup of Darts, this time partnering Marcel Walpen. In the new format of the event, they lost 3–4 to Italy and 1–4 to Sweden and were eliminated in the round robin group stage. During the year he qualified for two European Tour events, securing his first ever win on the stage against Robert Owen at the 2023 Belgian Darts Open.[6] He lost to Rob Cross 4–6 in the second round. Bellmont secured another victory at the 2023 Czech Darts Open, where he defeated Rowby-John Rodriguez 6–4 in the first round.[7] In the second round he lost 6–4 to Dimitri Van den Bergh.