I'm sitting on a chunk of Roddick +1609 to win the US Open. Assuming that they both win today-with should be a safe assumption. He's going to be a hefty dog to Federer in the finals and will most likely lose.
A hedge can only make sense for two reasons: to reduce the risk on a +EV wager or because the hedge itself is +EV. Assuming a fair line in the finals, it's just a question of whether you want to guarantee profits or not take the loss in EV from the hedge.
At pinny, you could bet roddick won't win the open at -600.
just let it ride... your best bet was hoping federer lost before meeting roddick, doesn't look like that will happen... but andy is playing great tennis, unlikely he'll beat federer, but there is a chance.. good luck ttinco