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Poker Straddle Calculator
Model a live poker straddle with exact open-to sizes, the straddler's call price, final preflop pot, and heads-up flop SPR.
Poker straddle calculator quick answer
A poker straddle is an optional blind posted before cards, often for twice the big blind. In a standard live UTG straddle, it becomes the active preflop blind. This calculator turns that rule into stack depth, a call amount, the final heads-up pot, and flop SPR.
- Enter the effective stack before the hand; the smaller stack in a real heads-up pot should set the model.
- The open-to multiplier is an input, not a universal recommendation. Local rules, stack depth, and the players involved can all change it.
- A UTG straddle normally acts last before the flop and early after it. Button and Mississippi variations can use a different order.
- A straddle is a blind, not rake. Check the room's fee schedule separately with the poker rake calculator.
How a poker straddle changes the live hand
A straddle is an optional blind posted before cards are dealt. In the common live version, the player directly left of the big blind posts it before looking, then gets the last preflop action if nobody raises. That extra blind becomes the table's active minimum entry price for the hand. The amount is often twice the big blind, but it is a house rule rather than a universal poker rule.
The useful way to think about a straddle is in blind units, not in an assumed strategy chart. A $200 stack in a $1/$2 game is 100 big blinds. Add a $4 straddle and the same stack is 50 active blinds for this hand. The chips have not disappeared, but a normal raise and call create a larger pot, so the stack-to-pot ratio on the flop can be much smaller.
The calculator uses a simple heads-up branch. Start with the blinds and straddle in the pot. Add the opener's total raise-to amount, then add the active blind's extra call. The final pot is the denominator for the immediate call price. The remaining stack divided by that final pot is the flop SPR. It is a way to see the price and commitment pressure created by a chosen structure, not an instruction to call or fold.
Action order matters. A standard UTG live straddle usually gets a last preflop decision but will be out of position after the flop. A button or Mississippi straddle can be treated differently and may keep the button's postflop advantage. Some rooms allow double straddles, cap their size, or use a different minimum-raise rule. Ask before the cards are dealt instead of assuming a familiar label means familiar mechanics.
Rake is a separate number. The straddle is money already in the pot; rake is the fee the room takes under its published schedule. A bigger pot can reach a cap differently, but the calculator cannot infer any room's charge from a blind amount. Use the linked rake calculator with the actual percentage and cap when you need to compare fee structures.
A $1/$2 game with a $4 live straddle
This heads-up example starts with $200 effective stacks and models a 3x open in each blind structure. It shows the price after an opener raises and the active blind calls.
| Measure | No straddle: 3x BB open | With $4 straddle: 3x straddle open |
|---|---|---|
| Starting depth | $200 = 100 BB | $200 = 50 straddles |
| Open to | $6 | $12 |
| Active blind's extra call | $4 | $8 |
| Final heads-up pot | $13 | $27 |
| Stack left after call | $194 | $188 |
| Flop stack-to-pot ratio | 14.9 | 7.0 |
Common live straddle variations
Poker rooms and home games can use different terms and action orders. Treat this as a checklist for the dealer, not a replacement for the house rule.
| Variation | Usual seat | Preflop effect | What to confirm |
|---|---|---|---|
| UTG live straddle | Immediately left of the big blind | Acts last before the flop after posting the active blind | Allowed amount and whether a re-straddle is live |
| Button or Mississippi straddle | Button or a permitted seat | May close preflop action and retain postflop position | Who acts first and whether the blind is live |
| Double straddle | Next eligible seat under local rules | Raises the active blind again and compresses stack depth further | Maximum number, order, and minimum raise rule |
Sources and methodology
- PokerStars Learn: Rake, straddles and the best poker hands: Explains the optional third-blind model, the usual left-of-big-blind position, and the need to follow venue-specific rules.
- Robert's Rules of Poker: Reference rulebook for standard live cash-game procedures, including the immediate-left-of-big-blind live straddle convention.
Straddle Calc questions
What is a straddle in poker?
A straddle is an optional blind posted before a player looks at their cards. In the usual live UTG version, it is placed by the player immediately left of the big blind and becomes the active preflop blind for that hand.
How much is a poker straddle?
A live straddle is often twice the big blind, such as $4 in a $1/$2 game, but the permitted size belongs to the cardroom or home-game rule. Confirm the amount and whether a second straddle is allowed.
Who acts last when there is a UTG straddle?
In the standard live version, the UTG straddler acts last before the flop because the straddle functions as the active blind. The same player is normally early in the postflop order. Button and Mississippi variations can differ, so ask the dealer.
How do you calculate the straddler's call?
Subtract the posted straddle from the opener's raise-to amount. If the straddle is $4 and an opponent raises to $12, the straddler has $8 more to call. Divide that call by the final pot after calling to find the immediate price.
Does a straddle change the right open size?
It changes the active blind and pot size, but there is no single correct multiplier. Use the open-to field to model the size your table is actually using, then check the resulting call and SPR. Stack depth, position, and local rules still matter.
Does a poker straddle mean more rake?
No. The straddle is a voluntary blind, while rake is the poker room's fee. A straddled pot may reach a room's cap differently, but you need that room's published rake percentage, cap, and drop rules to calculate the fee.
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