My friend Simon Kennett is racing the is the Great Divide Race, which started last Friday.
GDR is a solo, unsupported(ie carry your own stuff) race from the US-Canada border to the US-Mexico border
At the moment it looks like he is in 5th place, about 5 hours behind the leaders after 480miles (775kms) and 12,000 metres of climbing.
For updates, go to Simon's blog which his wife Sarah is updating. From there, you can also link to other sites, like the Race Updates Blog or the Progress Board.