RedactedNarrative: Vessel A was traveling north on Lake Winnebago at an estimated speed of 50 miles per hour when vessel A went over another vessel's wake, forcing the Vessel 1 upward.  As Vessel  1was coming back down, the bow of the vessel struck into a wave, causing a rapid deceleration, forcing the stern of the vessel to the left.  The rapid deceleration caused the Operator's upper body move to the left, while the Operator's legs remained under the control panel.  Vessel 1 Operator landed on the floor of the vessel and was positioned on his back in between the drivers and passenger seats.  Vessel 1 Passenger was also forced up and to the left making contact with the port side of the windshield.  Vessel 1 continued to travel to the left, under power, and is estimated to have made 2 complete circles in a counter clockwise direction before Vessel 1 Passenger was able to turn the key off, shutting off the engine.  Vessel 1 Passenger operated the boat back to shore where the operator was transported to the hospital for treatment.