Southern 100
Southern 100 Road Races
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|---|---|
Billown Circuit
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| Venue | Castletown, Isle of Man |
| Date | 2nd Week of July (Mon-Thurs) |
| Type | Road Course |
| Clerk of the Course | Giles Olley |
| Event Organiser | Southern 100 M.C.R.C. Ltd |
| Event Promoter | Southern 100 M.C.R.C. Ltd |
| Principal sponsor | Isle of Man Department for Enterprise |
History
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| First races | 1955 |
| First winners (1955) | Dave Chadwick (250 cc) Derek Ennett (350 cc) Terry Shepherd (500 cc) |
| Most wins | Ian Lougher (32) |
| Lap record | Dean Harrison 2 minutes, 10.835 secs 116.941 mph (188.198 km/h), 2022 |
The Southern 100 is a motorcycle road racing event held on the Isle of Man in July of each year. The event was first held in 1955, with three races for different classes of solo motorcycles; the 2015 calendar included twelve races for various classes. The participants compete on the Billown Circuit in the south of the island, starting and finishing at Castletown.