Did they do it? Find out in the very detailed and tweet by tweet account of their efforts to travel round all stations on the London Underground in the fastest possible time. You can also follow their general shenanigans and plans on Twitter too @to_the_trains.
Chicago Subway Challenger, Adham Fisher has written a song about Chris's route as a parody of Mylo's Destroy Rock & Roll. Called Destroy All Zones It's quite hypnotic listing of all the stations if you ever want to give it a try yourself.
Finally, in case you missed it, I was on Londonist Out Loud a couple of weeks ago talking about the Tube Challenge and a number of other Tube related bits and pieces. Enjoy!