In June 2012, he earned a place in the European Tour Event 2 in Berlin by defeating Andreas Krockel and Matheus Ziolkowski in the Home Nation Qualifier.
[2] He again came through the Home Nation Qualifier to reach the fourth European Tour Event and played Mark Webster in the first round in Stuttgart, Germany.
[8] Welge won the Bild Superdarter, the biggest darts event ever held in Germany with thousands of players competing in best of three leg matches.
[11] Therefore, he played in the Q School in an attempt to win a tour card for 2013 and 2014 and succeeded on the third day, defeating 2008 World Championship finalist Kirk Shepherd 6–3 in his final match.
[19][20] In 2015, Welge attempted to qualify for four European Tour events and was successful at the German Darts Masters, but lost 6–2 to Jamie Bain in the opening round.