Jack Three Offsuit vs Ace Two Offsuit

At the flop:
Winning 29.31% of the time
Tied 0% of the time
Losing 70.69% of the time

At the Turn:
Winning 34.89% of the time
Tied 0% of the time
Losing 65.11% of the time

At the River:
Winning 39.09% of the time(9.92% with trips or better)
Tied 0.59% of the time
Losing 60.32% of the time(2.37% with trips or better)