There are only 2 UCI-level women's races in the USA, and this is one of them - and we can watch it live!
The Parx Casino Philly Cycling Classic, formerly known as the Liberty Classic, is a great race, with the finish on the super-steep Manyunk Wall. The women race 5 laps of the 12-mile course - details are here. The winner gets $5,000 out of a total prize pot of $31,000 - equal prize money for the women and men too - really, the USA races put Europe to shame when it comes to prizes.
Here's the livestream - stream starts at 8:15am USA EST (5:30am USA PST; 1:15pm UK BST; 14:15 Euro CEST; 11:15pm Aus AEST) and the race starts 15 minutes later. There'll be live twitter updates on the @PhillyCycling account, and it looks like the hashtag is #PhillyCyclingClassic.