We only work with races that have an official registration transfer process in place. We do not allow bibs to get posted for races that don’t allow transfers, and we don’t condone the passing of bibs from one person to another outside a race’s official process—it creates enormous liability issues, it messes up the race results and frankly it’s just bad juju to give or sell your bib to someone without following the proper process.
More and more races are allowing transfers as a convenience to their runners, and those are the only races for which you’ll find bibs on Bib Flip.