Wallace, who trailed clubhouse leader Thorbjørn Olesen by five strokes with nine holes to play, had a bogey-free round of 65 for a 10-under-par total of 278 and victory by one stroke over Olesen, local favourite Martin Kaymer, and Mikko Korhonen, of Finland.
“I would like to congratulate Matt Wallace on a fantastic win at the end of what has been a very dramatic finale. We are delighted that his name will now be the 30th in the list of players to have won the BMW International Open,” said Peter van Binsbergen, Senior Vice President Sales and Marketing BMW Germany. “The 30th anniversary tournament had everything that has made the BMW International Open so special over the years. Thank you to the golf club, the volunteers, the spectators, our partners and the members of the media for their fantastic support.”