I just came across this website, which could be useful: http://www.stadt-zuerich.ch/content/...t/aktuell.html

It is the official website of Zurich for sports related issues, and it has a forum where one can search partners for doing sports, together (Sportpartner-Börse), links to cheap tennis courts (CHF 10 to 20 per hour), and special offers for kids and everyone else to do sports.

So: No more excuses!
Have fun
Idgie

Isn't that what the English Forum is for?