RedactedNarrative: VESSEL ONE AND VESSEL TWO WERE TRAVELING WEST ON DEGRAY LAKE.  ACCORDING TO WITNESSES, BOTH VESSELS WERE TRAVELING CLOSE TO EACH OTHER ATTEMPTING TO SPLASH EACH OTHER.  OPERATOR OF VESSEL TWO WAS TRAVELING JUST AHEAD OF OPERATOR OF VESSEL ONE.  VESSEL TWO TURNED RIGHT AND VESSEL ONE STRUCK VESSEL TWO ON THE STARBOARD SIDE.  OPERATOR OF VESSEL TWO WAS AIRLIFTED WITH A BROKEN TIBIA.