The Southern 100 is a unique event to the Isle of Man, a tantalising mass-start road racing event that sees participants competing around the infamous Billown Circuit. The event is held every July and is known locally as ‘The Friendly Races’, in comparison to its counterparts, the TT Races and the Manx Grand Prix. We’ve put together a handy guide to keep you in the know about all things Southern 100 and how to make the most of this year’s event!