RedactedNarrative: The Operator of Vessel 1 was up on plane and heading downstream and the Operator of Vessel 2 was operating up on plane heading upstream when the two vessels passed each other port to port.  As the two vessels passed each other, the two Operators recognized each other.  The Operator of Vessel 1 made a U-turn after passing Vessel 2 and sped up in an attempt to catch up to Vessel 2 and pull alongside Vessel 2.  Vessel 1 got stuck in the wake of Vessel 2 and did not realize that Vessel 2 had begun to decelerate.  Vessel 1 impacted and rode up the center stern of Vessel 2, angling off to the port side of Vessel 2.  Vessel 1 then came back down off of Vessel 2's port stern corner before both vessels came to rest.