PORTLAND, Ore. - The biggest payday in the history of Oregon racing awaits Ex Mountain Cop on Sunday. If he can win the $48,000 Os West Oregon Futurity at a mile, thus completing a sweep of the six-furlong OTBA Sales Stakes and the futurity to earn a $30,000 bonus, his owners will collect nearly $57,000. That will eclipse the $55,000 earned by Present Value when he won the $100,000 Portland Meadows Mile under Bill Shoemaker in 1989.