Welcome to the new SBC website. We've taken the time to gather all the relevant information you'll need to decide if want to get into boxing and included a little extra for those already involved just to keep you interested Open since 1994, Sheffield Boxing Centre is passionately run by the former lightweight boxer Glyn Rhodes MBE and based in the Foundation Building on Burton Street, Hillsborough. The gym offers boxing and fitness classes for all abilities and age groups and has the facilities to accommodate numerous classes each day.