RedactedNarrative: Both PWCs were southbound on river and travelling together. Operator of PWC 2 slowed down to look behind him for PWC 1. PWC 1 had passed PWC 2 and cut in front of it. Operator 2 started to accelerate forward, and struck PWC 1. Minor damage to PWC 2, major damage to PWC 1. Operator 1 had injury to right foot/ankle.