Jack Four Offsuit vs King Jack Offsuit

At the flop:
Winning 15.67% of the time
Tied 0% of the time
Losing 84.33% of the time

At the Turn:
Winning 19.97% of the time
Tied 0.51% of the time
Losing 79.52% of the time

At the River:
Winning 23.39% of the time(6.55% with trips or better)
Tied 2.83% of the time
Losing 73.78% of the time(4.72% with trips or better)