OK - just surfing around MTF (I tend to avoid it a lot during the grass season

) and I saw you talking about the Boodles Challenge...............so as it's in my local tennis club I thought I'd better try and explain it if I can.
It's a round robin event involving 8 players - players this year are Andre Agassi, Fernando Gonzalez, David Nalbandian, James Blake, Radek Stepanek, Mardy Fish, Nico Massu and one other yet to be decided. A load of top players choose to practice there for Wimbledon anyway, so they always have a few top players to draft in at the last minute.
Over the first two days, four 1st round matches will take place, - draw has not been done yet. In previous years all four of these matches took place on the Wednesday,- but because the event is usually a sell-out they added an extra day this year so they'll be spread over 2 days.
Once these matches are completed the four winners will play each other on Thursday and Friday, with the two successful players meeting in the Final on Saturday afternoon. The four losers will also play each other and the two winners of these "losers" matches (does that make sense?) will then play each other in a match for 3rd place on Saturday. They also arrange "exhibition" one-off matches for the four players not involved in proper matches on Saturday, so that everyone has the chance to play 3 matches.
I can't deny the draws, OOPs and results will be late - especially as people tend to drop out at the last minute - especally if they lose their first matches or of there's any hint of an injury that might affect their Wimbledon fitness. I do live very close though, so although I probably won't be going this year for various family reasons (I normally go), - if I decide to go or talk to any of my friends who work there I can let you no any news I find out.
As a bit of background - as well as the competition itself, there are various other exhibition matches and events going on throughout the week too - often involving veterans (Pat Cash and Goran Ivanisevic usually play), - and a couple of womens' matches. Sharapova usually goes as she played there just before she won Wimbledon in 2004, and seems to think the place brings her luck! Oh - and you get ghastly British celebrities like Cliff Richard playing their too
Stoke Park (the club where it's held) was the Hotel they used in the first "Bridget Jones" film and has also featured in a couple of James Bond movies. The gardens etc are very beautiful there.
Although the event is obviously there to give players' grass practice - us locals mainly see it as a charity thing. The couple who came up with the idea a few years ago, tragically lost their daughter in a car accident nearby, and they have set up a childrens' ward in a local Hospital in her memory. Every year they auction various things like tennis memorabilia or the chance to "meet the stars" with all the money going to the childrens' ward.
Hope that helps a bit to give you some background.