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. Welge played Paul Nicholson in the first round and lost 3–6. 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. There he beat the former world champion 6–4, despite Webster hitting a nine-dart finish in the opening leg and leading 4–2. Welge continued his run with a 6–4 win over Brendan Dolan in round two, to set up a last 16 encounter with Raymond van Barneveld, which he lost 2–6. In a copy of this, two weeks later at the European Championship he beat Webster 6–4 in the first round and once again faced Dolan in round two. However, this time he was beaten 5–10.
