RedactedNarrative: Vessel 1 and Vessel 2 operating on Petenwell Flowage.  Vessel 1 Operator was jumping the wake of Vessel 2.  Vessel 2 Operator slowed down to around 20 mph and Vessel 1 came in from the right (starboard) side and struck Vessel 2.  Vessel 2 Operator sustained a laceration to right arm.  Vessel 1 Operator stated his left knee was hurt but he refused medical treatment.  Vessel 2 did not have any observable damage, while Vessel 1 had part of the plastic on the bow broken.  Vessel 1 Operator cited for operating greater than slow no wake within 100’ of another boat and for operating without boating safety certificate.