RedactedNarrative: Operator 1 was operating vessel 1 through a ski salmon course on bass lake.  Operator 2 was operating vessel 2 just to the north of the ski salmon course.  After operator 1 finished the course she made a hard left turn in front of operator 2.  Operator 2 was unable to avoid the collision between vessel 1 and 2.  Neither operator was ejected from their vessel. Operator 2 boarded operator 1's vessel and transported her to the bass lake marnia for medical attention.  Operator 1 was transported to the iu starke hospital and treated for a contusion on her left leg and deep bruising.  Both operators were wearing appropriate pfd's.  Neither operator had consumed alcohol.