RedactedNarrative: Vessel 2 was attempting to jump vessel 1 wake.  Vessel 2 stated that he was going around 20 mph and around 10' behind vessel 1 attempting to jump his wake when vessel 1 driver jumped off. Vessel 2 driver then ran over vessel 1 driver hitting him in the head. Area of accident was approximately 200 yards east of Tallchief Point and approximately .5 mile north of Tallchief Boat Ramp.