Ultimate Frisbee is by far the greatest sport known to mankind.
I actually got onto our school's team, but I didn't join because of robotics (i don't regret it one bit

) I remember when the captain of the ultimate team saw me boarding the bus for the airport for the Championship last year, he shook his head.. i just grinned at him
It is, though, the unofficial team sport and every outing finds its way to a park and subsequently an ultimate game