Originally Posted by UMTerp
The second rule (bonus chips for those that don't rebuy) is kind of strange / not standard..
I see it in a couple of home games around here. I like it and it works well but that's IMO.
OP, this structure is terrible. For a $100 buy-in I would want at least 20 minute levels if not 25 or 30. Making the early rounds longer than the later rounds is backwards because you're going to want more play later. You will already have plenty of play early because of the large stacks but your levels go up too fast and skip too many levels. You're basically doubling the levels late which is terrible for the players. If I saw this structure sheet there is no way I would play in it. Unless you specifically want a turbo-style tournament, there is no way rounds should ever be 12 minutes long.
If you're short on time then what you want to do is speed up the early levels and slow down the later ones. In other words, start at 50/100 instead of 25/50. Get rid of the 75/150 level. Cut early levels and add late ones, your players will thank you.
That being said, here is how you create a good structure. Answer the following questions:
How many players are you expecting to seat?
How long do you want the tournament to last?
How many chips will each player start with?
The big blind in the final level of play is the total number of chips in play divided by 20. This is almost always true. In your example, if you have 30 players, 10 of whom re-buy and 20 of whom add-on, you're going to end up with:
10,000 * 30 + 20,000 * 20 + 10,000 * 10 = 300,000 + 400,000 + 100,000 = 800,000 total chips in play.
This means that the big blind will be 20,000 in the last level of play which is exactly how far your structure goes, so I would add another couple of levels after that to be sure. Also if you are expecting 40 players, or expecting fewer people to use their re-buy, your tournament will end later than you expect it to.
Once you have a handle on how many chips you expect to have in play and how long you want the tournament to last, you structure the levels accordingly. You can also decrease the starting stack to force it to end earlier. This is what I use for my home games which last 5 hours (weeknights) and get anywhere between 25 and 35 players:
Every player gets 5000 in chips. No re-buys, no add-ons. Insert breaks where appropriate.
25/50 15 mins - first 4 levels
300/600 20 mins - from here out
We normally finish by 4000/8000.
Antes - is this a self-dealt game? If so I do NOT recommend using antes. It takes up entirely too much time (collecting, making change) especially with the inevitable arguments about who ante'd and who didn't. Your levels are already super short and having antes will make them even shorter. With 12 minute levels you will be lucky to get halfway around a full table before they go up again. Also, why are you starting them at 400/800? I would just get rid of them altogether.