Eight Three Suited vs Ace Five Offsuit

At the flop:
Winning 27.35% of the time
Tied 0% of the time
Losing 72.65% of the time

At the Turn:
Winning 34.24% of the time
Tied 0% of the time
Losing 65.76% of the time

At the River:
Winning 39.03% of the time(14.58% with trips or better)
Tied 0.44% of the time
Losing 60.53% of the time(2.53% with trips or better)