RedactedNarrative: From my investigation, and supporting facts, it appears V2 was the stand-on vessel and altered her course to port with a vessel on her own port side, preventing the give-way vessel (V1) from reacting in ample time to take appropriate action alone to avoid the collision and continued its path of travel. Based on the damage, it appears that this caused the bow of V1, operated by Operator 1, to impact the port side rub rail near the stern of V2, operated by Operator 2, causing V1 to ramp on top of V2. The starboard side hull of V1 then struck Operator 2, impacting his left hip, left ribs, back, and left shoulder. The hull of V1 then impacted the handlebars of V2 and continued down the port side of V2. Fiberglass damage and striations to the port side rub rail near the stern of V2 indicates the point of impact from V1. Rips and burns on the seat of V2, damage to the left handlebar near the engine cutoff lanyard attachment point, and striations on the port side gunwale and rub rail, indicate the path of travel V1 took across V2. The damage to V1 was contained to the starboard side bow and along the starboard side hull.