RedactedNarrative: Both vessel #1 and vessel #2 were heading west northwest on Lake Havasu in the area of Pittsburgh point.  Vessel #1 slowed and turned in front of vessel #2.  Vessel #2 was unable to avoid colliding with the starboard side of vessel #1.  The operator of vessel #1 sustained a broken right leg below the knee.  The operator of vessel #2 was uninjured.