At the flop:
Winning 30.81% of the time
Tied 0% of the time
Losing 69.19% of the time
At the Turn:
Winning 39.38% of the time
Tied 0% of the time
Losing 60.62% of the time
At the River:
Winning 45.52% of the time(16.68% with trips or better)
Tied 1.41% of the time
Losing 53.07% of the time(2.44% with trips or better)