According to the officer report (interview of both sailboat operators) sailboat#1 was sailing near horse shoe island traveling towards ephraim. Boat#1 operator saw a small sailboat in the distance by looking underneath the sail of his boat. Boat#1 continued in the same direction and did not see sailboat#2 until boat#1 struck boat#2 on the aft starboard side of boat#2. Boat#1 rode up atop boat#2 striking the boat#2 boom which struck boat#2 operator in the chest and knocking him overboard. 

Boat#1 operator while in the water, 'passed' underneath boat#1 and boat#2 and then was pulled from the lake by the boat#1 operator. Boat#1 also took aboard the 10 yr old male passenger of boat#2. The collision to boat#2 damaged the mast & sail and to the joint of the deck and hull. Boat#1 operator then sailed to the boat ramp at peninsula state park with the ten yr old aboard his boat, and boat#2 operator rode aboard boat#2 which was connected to boat#1 stern by a tow rope. Boat#1 operator did not report the incident since no injury of boat#2 operator & passenger was noticed by him. Boat#2 sailboat operator sought medical attention the following monday at the aurora nor-door medical clinic in sister bay. Boat#2 operator inury was diagnosed as torn cartilage around his sternum.  Neither boat operator filed an operator incident report or contacted authorities until boat#2 operator did on september 30, 2012, reporting his injuries and damage to sunfish sailboat of $2500.

EPHRAIM                       