At the flop:
Winning 26.28% of the time
Tied 0% of the time
Losing 73.72% of the time
At the Turn:
Winning 32.49% of the time
Tied 0% of the time
Losing 67.51% of the time
At the River:
Winning 38.12% of the time(16% with trips or better)
Tied 0.44% of the time
Losing 61.44% of the time(2.74% with trips or better)