National Roller Derby Association (NRDA)Logo Design Contest Logo Design Contest Contests / National Roller Derby Association (NRDA) National Roller Derby Association (NRDA) has selected their winning logo design. For $300 they received 42 designs from 7 different designers from around the world. Find out how LogoTournament works How LogoTournament works Contest Entries by bdietrich Return to Contest Return to Contest New #42 New #17 Prefers others. #18 Discussion No comments yet.