Eight Four Suited vs King Jack Suited

At the flop:
Winning 25.9% of the time
Tied 0% of the time
Losing 74.1% of the time

At the Turn:
Winning 30.26% of the time
Tied 0% of the time
Losing 69.74% of the time

At the River:
Winning 34.14% of the time(15.49% with trips or better)
Tied 0.7% of the time
Losing 65.16% of the time(3.45% with trips or better)