Sounds like five a side, maybe. It was a long time ago but I remember it being knackering hard work. No wonder you want to play in goal.
yep that's it. Very hard work. Think the oldest player there is in his forties though, good fella. I'm still in my prime at 17 :P I'd look about 90 if I had to run as much as my team does.
On the note of 5 a side, it seems to really help develop peoples skills before they venture onto the bigger pitch. I know the people that went through school with me, the ones who started off in futsal are far better technically. Then again over here if you aren't technically skilled, you play rugby league.