RedactedNarrative: Watercraft #1 was pulling a tube with 3 occupants. WC #1 was performing figure 8 turns in the lake. It was traveling between 11-14 MPH. The tube crossed over the boat's wake and the tube occupants were thrown off into the water. The watercraft came around to pick them up and two of the tubers complained of neck pain. All three tubers were wearing helmets and life jackets. The tubers with pain received medical treatment. Life jackets were being worn in the boat. Alcohol was not a factor.