you can't :( sorry. once it begins, you can't - that would have really bad implications to allow that. however, if they have finished all of their games and it is a multi-round tournament, you can kick them out before the next round starts.
Can I kick someone out of a tournament

RainbowRising, to answer your question, some people are taking forever to make their moves which takes the fun out of the tournament, especially when there is more than one round. I set the time limit to 7 days per move to give some freedom but only allowed people with an average time per move < 6 hours to join. However, I now have people using the max time allowed per move which defies the purpose of the tournament. Anycase, nothing I can do about it.
Wow..
So you made the tournament 7 days a move to allow some freedom and then you want to kick people out because they are using the allotted time?
Absurd.
In the future, make your tournaments one day a move or don't complain when someone follows the rules that you set up.

Ok...once again...why are people complaining about taking the maximum amount of time???? If you have set a limit of 1 move every 6 days, why do you want to kick people out for taking that amount of time? It makes no sense.
I dont understand all of the complaining about taking the amount of time you are entitled to. If you want a faster tournament then set it for 1 day per move.
I love this site, but there is A LOT of complaining about peole taking there maximum alotted time.
Wow..
So you made the tournament 7 days a move to allow some freedom and then you want to kick people out because they are using the allotted time?
Absurd.
In the future, make your tournaments one day a move or don't complain when someone follows the rules that you set up.
He wasn't complaining, he was just asking. Why the instant attacks? @ pierrejcoetzee I know it is annoying, but there is nothing you can do about it. You know what to do next time.

RainbowRising,yes,you are correct.
To the others, I am not complaining or trying to be rude. I tried some settings and it clearly is not working out as planned. I was just wondering about my options to speed things up hence the question. But I can see how it would not be a nice thing to do.

Not on this site, but at another, I was in a losing position but I found a way to force a perpetual check. My opponent complained.
I went on holidays last year in a game that had 14 days per move. Some of my opponents complained.
I was up a pawn in an endgame and there was still some play left, but the game looked drawish to me, so I offered a draw. Guess what? My opponent complained.
If a guy is cheating, trash talking to excess, breaking rules, etc., by all means complain. But actions clearly within the rules have got to stop.
Just make your tournements 2/3 days a move, this way it forces people to play a little faster and it's not so boring. I love chess but it tends to be a drag at times

Ouch, didn't realise I was going to invite so much anger. So much for trying to learn what can and can't be done. Guess questions are not welcome on this site.

Join my tournament! No Vacation! :-)
I faced exactly the same issue when constructing it. It becomes even more of a big deal with a "no vacation" tournament. I mean, if you make a 1 day per move no vacation tournament, you have GOT to expect some timeouts, right? So it's a 3 days per move tournament, with a maximum time of 6 hours per move. I hope we don't get too many people using the max. It could always come back to bite them if they have an upcoming vacation! :-)
http://www.chess.com/tournament/ginger-ale-open

Rainbow Rising,the relevance of my post to this thread is that no rules have been broken by the slow-moving player. We cannot kick guys out of tournaments for playing too slow. If they exceed their time controls, they lose, simple as that.

Your'll get critised for whatever you do, whereever you do it I'm afraid. But don't worry, most of us are smart enough to know you had good intentions.
I am curious. How does considering the possibility of kicking a person (who is playing WITHIN the rules) out of a tournament fall under the catagory of "good intentions"?
Is it possible to kick someone out of a tournament I am hosting when the tournament has already started? If so, what would happen to the games the kicked person was playing? Would all his opponents get a win or would they lose the chance to score points against him or would the games continue as normal?