Career
He made his World Championship debut in the 2002 BDO International World Darts Championship where he lost in the first round 3–2 to Eric Clarys. Welge made his Personal Digital Cellular debut in the 2006 Personal Digital Cellular World Darts Championship, where he was defeated 3–0 by Alan Warriner-Little in the first round. Four years later, he qualified for the 2010 Personal Digital Cellular World Darts Championship, but was beaten 3–0 by Mark Dudbridge in the first round.
In the 2011 Personal Digital Cellular World Darts Championship he was close to beating Colin Lloyd in the first round, having three matchdarts, but ultimately lost 3–2.
In June 2012, he earned a place in the European Tour Event 2 in Berlin by defeating Andy Kröckel 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. 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.
Welge played Leung Chen Nam of Hong Kong in the preliminary round and lost 1–4 as he hit just 10% of his doubles, with an average of 76.70. Welge entered 2013 ranked world number 74, outside of the top 64 who retain their places on the Personal Digital Cellular tour. He played in his second World Cup of Darts in February with Jyhan Artut and they qualified from Group F with 5–3 wins over Finland and the United States of America. The home nation then saw off Poland 5–2 and then played the Finnish duo of Jani Haavisto and Jarkko Komula in the quarter-finals.
Artut beat Haavisto, but Welge lost to Komula 4–2 meaning that a doubles match was required to settle the tie.
Germany came from 3–1 down to level at 3–3 but lost the deciding leg to exit the tournament. Welge qualified for the 2014 World Championship by beating Maik Langendorf 10–7 in the final of the German Qualifier, but lost 4–1 to Julio Barbero in the preliminary round.
Welge and Artut were beaten 5–3 by South Africa in the first round of the World Cup of Darts. Welge qualified for the German Darts Masters but lost 6–1 to Jani Haavisto in the opening round and was knocked out in the semi-finals of the World Championship Qualifier 8–4 by Sascha Stein.
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.
BDO International
2002: First round (lost to Erik Clarys 1–3)
Personal Digital Cellular
2006: First round (lost to Alan Warriner-Little 0–3)
2010: First round (lost to Mark Dudbridge 0–3)
2011: First round (lost to Colin Lloyd 2–3)
2013: Preliminary round (lost to Leung Chen Nam 1–4 in legs)
2014: Preliminary round (lost to Julio Barbero 1–4 in legs).
