RedactedNarrative: Vessel 1 traveling in the channel heading from the Bay of Green Bay toward the Michigan Street Bridge at 800 rpm or about 8 mph.  Vessel 2 passed Vessel 1 port at a high rate of speed creating a significant wake.  After Vessel 2 passed Vessel 1, Vessel 1 Operator turned hard left rudder attempting to point the bow into the wake.  At the speed Vessel 1 was traveling response was not quick enough to get the bow perpendicular to the large wake and Vessel 1 rolled side-to-side causing Vessel 1 Passenger (who was in the main cabin) to fall and hit her head.  Emergency room nurse practitioner at the hospital indicated Vessel 1 passenger most likely suffered a concussion as she passed out momentarily.