SPR

(Stack-to-Pot Ratio)

math

Effective stack divided by pot size on the flop.

SPR < 4 → commitment territory (top pair often plays for stacks). SPR > 13 → deep, look for setup hands.

See also

Your statistical share of the pot, expressed as a winning probability.

The average profit/loss of a play over infinite repetitions.

Pot odds adjusted for expected future bets if you hit your draw.

Cards remaining in the deck that improve your hand to a winner.