Poker Blind Structure Calculator

A good home-tournament blind structure starts everyone about 100 big blinds deep and raises the blinds by a set step each level on a fixed clock — about 25% for a slow structure, 40% standard, 60% turbo. With a 5,000 starting stack that means opening at 25/50 and using 15–20 minute levels: about 12 levels and a 3–4 hour tournament at standard speed. Smaller levels or faster increases shorten the night; the game effectively ends when the big blind reaches about 1/20th of all chips in play.

How fast should blinds go up?

Why casino structures look nothing like yours

If you've copied a structure sheet from a major tour and wondered why your home game finished in an hour, this is why: big live events are built to last days, not an evening. The WSOP Main Event, for example, starts players on a 60,000 stack at 100/200 — a 300 big-blind start — and runs two-hour levels. Smaller live tournaments commonly use 15, 20, 30, 45 or 60-minute levels, and a step of around a third per level (150/300 up to 200/400) is considered a comfortable climb.

The takeaway: keep the shape (100 BB start, steady climb, fixed clock) and shrink the clock. Lifting a casino sheet unchanged either ends your night at level three or keeps you at the table until 4am.

How to set up tournament blinds

1. 1. Start ~100 big blinds deep. First big blind ≈ starting stack ÷ 100, rounded to a clean chip number — 5,000 stacks open at 25/50.
2. 2. Pick a speed. Blinds should rise 25–50% per level. Faster than that and skill stops mattering; slower and you're playing past midnight.
3. 3. Fix the clock. 15–20 minute levels suit most home games. The blinds go up when the timer says so — never “after this orbit.”
4. 4. Check the finish line. The tournament effectively ends when the big blind hits ~1/20th of total chips. Tune speed and level length until the estimated duration fits your night.

Blind structure FAQ

What blinds should a home poker tournament start at?

Start everyone about 100 big blinds deep: first big blind ≈ starting stack ÷ 100, rounded to a clean chip number. A 5,000 starting stack opens at 25/50; a 1,500 stack opens at 25/50 turbo or 10/20 if you have 5-value chips.

How much should blinds increase each level?

Between 25% and 60% per level, depending on how fast you want to finish. Around 40% with 15–20 minute levels gives a typical 9-player home tournament a 3–4 hour runtime with real post-flop play in the middle stages. The first level or two may jump more than that — blinds have to land on values your smallest chip can actually pay.

How long will my tournament last?

Roughly the number of levels × level length. The game effectively ends when the big blind reaches about 1/20th of all chips in play — that's when the average remaining stack is shove-or-fold short.

Why can't my blinds start lower?

Because the big blind has to be payable in real chips: it must be a whole multiple of twice your smallest denomination. With 25-value chips the lowest possible blind level is 25/50, so a 1,500 starting stack is stuck at 30 big blinds deep. Use a smaller denomination — roughly your starting stack ÷ 200 — or give everyone a bigger stack.

Should home games use antes?

Most home games skip them — antes add chip traffic every hand for a table that's already managing its own dealing. If you want late-game pressure, a faster blind ladder achieves the same thing with less fiddling.

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