Szabo won the 2015 DPNZ Tararua Open by beating Mark McGrath 7–5. He played with Warren Parry in the 2015 World Cup and they secured New Zealand's first win in the event since 2010 by knocking out Canada 5–4. They faced Northern Ireland in the second round with Szabo losing 4–1 to Brendan Dolan and Parry losing 4–0 to Michael Mansell to exit the tournament. He won the New Zealand qualifier for the 2016 World Championship by defeating Craig Caldwell 9–3. He overcame Michael Rasztovits 2–0 in the preliminary round, before losing 3–0 to Jamie Caven in the first round. His attempt to return to Alexandra Palace for the 2017 World Championship was ended in the final of the New Zealand Qualifying Event 7–3 by Parry. Szabo lost in the final of the DWA Grand Prix to Corey Cadby, but won the Harrows Australian GP by thrashing Damon Heta 6–0. At the 2017 World Cup, Szabo and Cody Harris were eliminated 5–2 by Belgium in the opening round.