Reconstructing an action ledger

Rebuild pot, wallet and street contributions from chip transfers without paying an old contribution twice.

12 minutes · beginner · Original Poker4Quant lesson

What you will learn

Distinguish a target street total from the additional call and reconstruct balances across a betting-round boundary.

Prerequisites: Actions and betting rounds · The price of a call · Splitting pots and tie payoffs

A total and a transfer answer different questions

An action description can give a total contribution rather than a fresh payment. If the amount to match is 45 and you already put 15 into this betting round, the additional call is 45−15=30. Moving 45 more would produce a street contribution of 60, which is a different action.

Write four quantities separately: pot before the action, wallet before the action, already paid on the current street, and target total for that street. The pot already includes the earlier payment. Do not add that earlier contribution a second time when updating the pot. This is an accounting exercise, not an instruction that calling is the best choice.

Balance the same chips on both sides

Every additional chip sent from a wallet to the pot decreases that wallet by one and increases the pot by one. With no other player acting, fees or payout, pot plus that wallet stays constant. A mismatch exposes a missing transfer or a duplicated payment.

Suppose the pot is 90, your wallet is 85, you have paid 15 this street and must match 45. Transfer 30. The resulting pot is 120, wallet is 55 and street contribution is 45. Before and after, pot plus wallet is 175. The street contribution is a label on chips already in the pot, not a third pile of spendable chips.

A new street resets the label, not the pot

At the beginning of a new betting round, your paid-this-street counter starts at zero. Chips committed on earlier streets remain in the accumulated pot. If you paid 30 on the flop and face 20 on the turn with nothing paid on the turn, that earlier 30 does not cover the new 20.

Keep the model boundaries explicit. These lessons supply ordinary calls that fit within the wallet. All-in shortages, uncalled raises, side pots, rake and payouts need additional ledger rows and eligibility rules. A short wallet should not silently become a negative balance or an invented full call. First establish legal actions under the actual rules; then reconstruct their chip transfers.

Worked example

Pot 90, wallet 85, paid 15 on this street, target 45. Reconstruct the call, then explain why the street contribution is not added again.

  1. Additional call = 45−15=30.
  2. Pot after = 90+30=120; wallet after = 85−30=55.
  3. Street contribution after = 15+30=45. Those 45 chips are already part of the 120-chip pot.
  4. Conservation: 90+85=175 and 120+55=175. Adding the street total again would fabricate 45 chips.

The correct transfer is 30, not 45. Labeling a contribution does not create another balance.

Hands-on: Reconstruct the chip transfer

Move only the unpaid call from wallet to pot, then audit street contribution and balances under three supplied ledgers.

Reading action ledger…

Common mistakes

  • Paying the target total as though nothing had already been contributed.
  • Adding both the additional payment and the new street total to the pot.
  • Using an earlier-street contribution to reduce a new-street call.
  • Letting a supplied accounting shortcut stand in for actual all-in or raise rules.

Keep these ideas

  • Additional call = target street total − already paid this street.
  • Add only the new transfer to the pot and remove it from the wallet.
  • Street contributions are labels inside the pot, not extra chips.
  • A new street resets its contribution counter while preserving the pot.

Further reading

  • PokerStars — Rules of Texas Hold’em and showdown ↗

    Operator-published rules describe two private cards, five community cards and any best-five subset using zero, one or two private cards. Rules reference only; no endorsement, copied assets or wagering recommendation. Checked 2026-10-21.

Check your understanding

Untimed · 3 checks · Guest progress stays in this browser. Sign in to save account snapshots.

Loading saved lesson…