Rebuy Tournaments

In most tournaments, once you lose all of your chips, you're out. There's one exception though – rebuy tournaments. In a rebuy tournament, you can buy more chips any time during the rebuy period if you're at or below what you started with.

In an online poker room, the rebuy period is usually an hour. At the end of that period, you can buy one add-on regardless of your stack. In the beginning of rebuy tournament, people often play like maniacs. If you see someone raise all-in in a tiny pot before the flop on the first hand, and you're holding a hand like AQ or a pair of tens, you should almost always call, where it would be an auto fold in a normal tournament.