RedactedNarrative: Operator 1 was operating vessel 1 while towing 2 water skiers behind it on a tandem tube. As operator 1 was turning vessel 1 with the water tube with the water skiers on it, the speed of vessel 1 while completing the turn caused the tube to swing outside the wake. Skier 2 fell from the water tube impacting the water causing the skier to sustain injuries. None on the other occupants on vessel 1 and the other skier sustained any injuries. There was no damage sustained to vessel 1.