Münstermann is the winner of several German Championships (Team: 1995 and 2005; double: 1994 and 1997; Single: 2003, 2004 and 2006; U21: 2000). His success in the European tour gave him a place on the main tour and 2001 World Snooker Championship in the 2000–01 season, but it was short-lived. At the 2005 World Games he reached the quarter-finals. For Germany, he was part of a team with Sascha Lippe and Itaro Santos which won the European Team Snooker Championship in Ghent, Belgium, in early 2007. He qualified for the &lt;a href="Players%20Tour%20Championship%202010/2011"&gt;Players Tour Championship 2010/2011&lt;/a&gt;, which was held in Germany. He has also contributed to PAT (Playing Ability Test) Snooker along with Thomas Hein, Thomas Moser and Frank Schröder.