This document proposes a new human-cat sport called "teambuilding" where a human and cat form a team. Each team needs a tennis ball and wheeled toy. The goal is for the human and cat to clean the house together, with the human using the tennis ball to entertain the cat. The document describes the first ever match between the human and their cat Kitzum, though they had no other competitors. A world championship for human-cat teambuilding is announced for January 2013 in Kyiv, Ukraine.