Suffering a little from baseball and basketball fatigue? This Saturday you’ll have a chance to try out newly minted athletic endeavors at the Tournament of Games in the Jackson Park Playground on Potrero hill. The fresh sports include New Games and new New Games such as Earthball, Slaughter, Parachute, Gig Economy and Containerization Tag. The event is a bit puzzlingly described as “reflecting the resonance of 1970’s era humanism”. Free.