Queens Club

The Queens Club at Barons Court claims to be the first-ever multipurpose sports complex built anywhere in the world, but to me it is best known for its tennis. The week before Wimbledon the Queens Club hosts the Stella Artois Championships, a handy training ground for would-be Wimbledon contenders. Much cheaper than Wimbledon, and with better ticket availabilty (i managed to get tickets for the final 2 years running, for only GBP40 per ticket), this is a great day out. The venue is compact, serves good food and drinks for slightly less than extortionate prices, and gets you as close to the players and the action as you'd want to be.

if you are very rich and very posh and know multiple members of the royal family then you can probably become a playing member of their rackets club for the price of a small duchy.