Street-O: 13 December 2011

The next Street-O race of the Winter 2011-12 series takes place around Clapham Common, starting at The Windmill pub. We have a room booked and the pub has a good food menu, so do stay around afterwards to socialise. PLEASE BRING YOUR SI CARD IF YOU HAVE ONE.

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Like all our Street-Os, this a public race – all are welcome. Please RSVP to the event via Facebook (link above) to let us know you are coming – you can also see who else is coming here and post queries. If you are not on Facebook, please let the organiser know you are coming, at so that the correct number of maps are printed.

Registration, Start and Finish Location

AddressThe Windmill pub, Clapham Common South Side
Latitude/longitude51.4578, -0.1443
OS grid referenceTQ290748
MapsGoogle Maps, OpenStreetMap


In The Windmill pub, which is on the east edge of Clapham Common, on a road usefully called Clapham Common South Side. Start and Finish from outside the pub. We have a room reserved for bags and socialising afterwards, but registration should be near the main entrance; bags are left in the pub at your own risk.

The pub is about half a mile from both Clapham Common and Clapham South stations on the Northern line. There are plenty of bus routes connecting Clapham Junction to Clapham Common.

Entry Fee

£1 for SLOW members, students and juniors, £2 for others.


RegistrationBetween 1815 and 1945
Start TimesBetween 1815 and 1945

Race Format

Normal Street-O format with clues located at each control site. You have 60 minutes to visit as many controls as possible, in any order, and return to the finish. SI will be used to time the start and finish, please bring your SI card if you have one. Don’t forget to bring a pen to write down your answers to the clues as you go around, and a watch. A headtorch will be useful. General information about street orienteering.


Fluorescent clothing is recommended for safety. Most controls will be located in the streets around the edge of Clapham Common. The common has many clear and well-lit paths which should be used to cross it. A couple of areas off the paths which are wooded will be marked out of bounds. All competitors take part at their own risk.

You MUST be over 16 to take part in this event, unless you are accompanied by a parent or guardian. This is a condition of our insurance.


The pub serves food until 2230 and closes at midnight. The December Street-O is traditionally an informal end-of-year social, so please come along and join us afterwards. More details about The Windmill can be found on their Facebook page.


Results will be available on the SLOW website shortly after the event.


Organiser/Planner: Angus Lund

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