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Reference · Cheat sheet

The Polymarket Combo cheat sheet.

A compact reference for slowing down long enough to see what a Combo actually is, what a number actually represents, and what the venue is—or is not—offering right now.

Published August 12, 2026

Short answer

Know every leg and how it resolves. Know the difference between the number a calculator gives you and the price the venue quotes. Know that selling early depends on somebody being there to buy. If any of the three is fuzzy, you are not ready.

01 · Vocabulary

Five labels that keep the screen honest.

LabelRead it asDo not turn it into
LegOne selected outcome with its own resolution condition.A vague supporting reason for another leg.
ComboA position that needs every selected leg to resolve your way.A basket where partial success is enough.
Independence benchmarkBookie’s explanatory multiplication of selected probability inputs.A venue quote, fair value, or prediction.
Venue quoteA current, venue-provided price and terms for a specific request, if available.A reusable number for another size, time, or combination.
Cash outAn attempt to sell a position before resolution when a buyer or quote exists.A guaranteed redemption button.

02 · Before the click

A slow checklist beats a fast hunch.

  1. Read every leg’s full question, selected outcome, and resolution condition—not just the visible team or market label.
  2. Mark each number correctly: public market data, a Bookie calculation, a user-entered figure, or a current venue quote.
  3. Notice shared events, teams, players, or conditions that make simple independence math less descriptive.
  4. Check whether the venue can currently quote this exact combination, rather than assuming every visible leg is Combo-eligible.
  5. Understand that all legs must resolve in your favor for the Combo to win, and that an early sale may have no current counterparty.
  6. Follow current venue availability rules and local law. Do not use this site to work around restrictions.

03 · What the state actually tells you

Status language should describe, not persuade.

What you seeWhat you can inferWhat you cannot infer
Public catalog resultThe source lists a market as a current Combo-leg candidate or capability record.That the visitor has a live, executable Combo quote.
Bookie calculationThe displayed math follows the stated user inputs and assumptions.That the venue agrees with it or will fill it.
Current venue quoteA venue is showing current terms for the specified request.That it will remain available after the quote window or for another size.
Greyed-out / no quoteThe venue is not currently presenting a fillable request in that state.That the market view is invalid or that another request will definitely work.
Cash-out availableA current early-sale interaction may be available to review.That selling is required, optimal, or available later.

04 · One formula, named properly

Use probability as a check on intuition—not as a promise.

When—and only when—you intentionally assume legs are independent:

The result is not a Polymarket quote. It is not a claim of profit, an “edge,” or a forecast. It is an arithmetic consequence of your inputs and the independence assumption you chose.

Sources & methodology

Facts, math, and limits kept separate.

We review primary venue materials for mechanics. Bookie’s probability examples are explanatory calculations, not venue quotes, forecasts, or a recommendation to trade.

Reviewed August 12, 2026. Polymarket controls its own product, market rules, availability, and interfaces; they may change. Bookie is independent and is not the venue. Bookie is a technology product under development. It does not guarantee outcomes or profits. Market access and availability may depend on third-party venues, eligibility, and jurisdiction. Nothing on this site is financial, investment, or gambling advice.