Jun 13 2015: Bill Marshall places 32nd at the Men Master 40+ Cat 123 Race at the Saint Francis Tulsa Tough - Saturday in a group sprint

May 31 2015: Bill Marshall places 24th at the Men 40+ Master Cat 123 Race at the Oklahoma City Pro-Am Classic - Sunday in a field sprint

May 30 2015: Bill Marshall places 19th at the Men 40+ Masters Cat 123 Race at the Oklahoma City Pro-Am Classic - Saturday in a group sprint