Eight Four Suited vs Queen Nine Offsuit

At the flop:
Winning 26.93% of the time
Tied 0% of the time
Losing 73.07% of the time

At the Turn:
Winning 32.05% of the time
Tied 0% of the time
Losing 67.95% of the time

At the River:
Winning 37.5% of the time(16.4% with trips or better)
Tied 0.74% of the time
Losing 61.76% of the time(2.41% with trips or better)