The formula
Assume you bet a fraction f of the pot on each street, and every bet is called with no raises. Each
street the pot grows by a factor of 1 + 2f. Over n streets the pot grows by
(1 + 2f)^n. The stacks are all in when the pot has grown by 1 + 2 × SPR, where SPR is
the effective stack divided by the pot. Solving for f:
f = ((1 + 2 × SPR)^(1/n) − 1) / 2
Bet size by SPR
Percent of the pot to bet on every street, from the formula above.
| SPR | 2 streets (turn, river) | 3 streets (flop, turn, river) |
|---|---|---|
| 1 | 37% | 22% |
| 1.5 | 50% | 29% |
| 2 | 62% | 35% |
| 3 | 82% | 46% |
| 3.5 | 91% | 50% |
| 4 | 100% | 54% |
| 6 | 130% | 68% |
| 7.5 | 150% | 76% |
| 8 | 156% | 79% |
| 10 | 179% | 88% |
| 12 | 200% | 96% |
| 13 | 210% | 100% |
| 17.5 | 250% | 115% |
| 20 | 270% | 122% |
| 21 | 278% | 125% |
| 24 | 300% | 133% |
| 30 | 341% | 147% |
| 31.5 | 350% | 150% |
Example
With a pot of 10 and an effective stack of 130, SPR is 13. Over 3 streets the bet is 100% of the pot each street: the pot goes 10, 30, 90, 270, and each player puts in 130.