Your leak is likely from the tub ring gasket. Now, the gasket probably isn't faulty, but your machine SHOULD completely drain before spinning. This is called neutral drain. Once the pressure switch signals to the timer that the tub is empty of water, the timer should pause and then should spin. Missing neutral drain puts excess strain on your clutch, which will cause premature failure. Your transmission/gearcase SHOULD be in neutral until the timer pauses. If it does not, your transmission/gearcase is faulty. What's happening is that when the washer spins full of water, the centrifugal force causes the water to come over the top of the tub, and the tub ring gasket isn't made to hold that back, which is where your water is coming from.