RedactedNarrative: V1 was traveling northbound towards open water.  V2 was traveling in the same direction, just to the right and behind V1.  O1 decided to turn to the right and was unaware of V2's position.  As V1 turned hard to the right and back towards the south, O1 observed V2 ahead of him.  Neither operator remembers making any evasive maneuver, but the damage indicates that V1 heeled over hard to starboard.  V1 traveled over V2 at approximately a 45 degree angle from the bow, impacting the port stern of V2 with the starboard bow of V1.  V1 struck O2 with either the port side chine, causing an abrasion/contusion to O2's torso.  There was an abrasion/contusion approximately 6-8 inches in length approximately 3 inches above the waist, running from the anterior to posterior.