The fourth annual Bloomberg Square Mile Relay

Until 2007 there had never been a road race like it, and it remains a unique event in the City's sporting calendar. Last year's Bloomberg Square Mile Relay was a sell-out, with 100 teams signed up to compete in the race over a specially designed course that takes runners around the very heart of the City.

The event is back for 2010 and Relay teams of 10 competitors from an array of companies plying their trade within the Square Mile can enter to compete against each other for the ultimate bragging rights.

Not only will you be racing to cross the finish line but the winning team will also receive a cheque to donate to a charity of their choice, with last year's winners Barclays Capital opting to put the proceeds towards the Karen Morris Memorial Trust.

020 7240 7700