Bart van Polanen Petel (1983) is a former Dutch amateur boxer. Highlight athletic achievements are winning a Dutch national amateur championship in the light heavyweight division (2005) and training by Joe Frazier in Philadelphia (2006). At the end of his amateur career he switched to coaching, while graduating as a BA in Communications. As a trainer he went on to coach multiple boxers to their way to national championships. Bart van Polanen Petel still teaches boxing in his native city of Tilburg (NL) and online, but is mostly known for his artistic endeavors as 'Paintboxer'.