After eliminating Vincent van der Voort 3–1 at the 2017 World Championship, Hopp lost 4–0 to Kim Huybrechts in the second round. He teamed up with Martin Schindler at the World Cup and they played the Netherlands in the quarter-finals after overcoming Northern Ireland and Brazil. The match went to a doubles game after Schindler lost to Michael van Gerwen and Hopp beat Raymond van Barneveld 4–3 and Germany lost 4–1. He was also given an invite to play in the 2017 US Darts Masters, but was knocked out in the first round by Canada's Dave Richardson 6–3. He also qualified for the 2017 German Darts Masters, but was again knocked out 6–3 in the first round, this time by Gary Anderson.