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Ranked-choice voting tabulation and round markets

Ranked-choice voting lets voters rank candidates, and if no one wins a majority of first choices, the count proceeds in rounds as last-place candidates are eliminated and their ballots transfer. That structure creates event contracts with a twist: the election-night leader may not be the eventual winner, and the final tally can take days. This SoftCta guide explains how ranked-choice tabulation works and how to read quotes before and after the first-choice numbers appear.

How rounds work

In a single-winner ranked-choice count, election officials first tally first choices. If a candidate has a majority of continuing ballots, they win. If not, the candidate with the fewest votes is eliminated, and each of their ballots moves to the next-ranked continuing candidate. Rounds continue until someone has a majority. Jurisdictions differ on details such as batch elimination and tie-breaking, so SoftCta readers read the local rules.

First choices versus final round

A candidate leading first choices by a modest margin can lose if eliminated candidates’ voters rank a rival higher. Markets that settle on the winner care about transfers, not just round-one shares. Price moves on election night often reflect first-choice counts, and SoftCta readers ask how transfers are likely to flow based on endorsements, coalitions and polling of second choices.

Exhausted ballots

Voters who rank only one or two candidates may see their ballots exhaust when those candidates are eliminated. Because majorities are typically computed among continuing ballots, a winner can finish with a majority of the final round but less than half of all ballots cast. Contracts about vote share need careful reading of which denominator applies.

Timing of tabulation

Some places run preliminary ranked-choice rounds on election night; others wait until more ballots arrive and publish rounds days later. Late mail ballots and cured ballots can shift both first choices and transfers. Certification and canvass rules decide when results are final, and media race calls may come earlier or later.

Multi-outcome pricing

Ranked-choice races often have many candidates. Prices across all outcomes should roughly sum to one after fees; our probability sums guide explains the math. Large gaps can reflect thin books on minor candidates rather than information.

A worked example

A city mayoral contract prices Candidate A at an illustrative 55 cents after first choices show A at 38 percent, B at 31 percent and several others splitting the rest. Exit surveys suggest supporters of the third-place candidate lean toward B as a second choice. The reader estimates transfers, notes that late ballots historically favored a different coalition locally, and writes a 40–55 percent range for A. They verify live cents and wait for official rounds. Substantial risk of loss.

Common mistakes

Treating the first-choice leader as the winner. Ignoring exhausted ballots in share contracts. Assuming election-night rounds are final. Mixing a primary ranked-choice count with a general-election runoff, which our runoff guide covers. SoftCta pages avoid sure-thing election calls and pick-selling.

Primary sources SoftCta readers open

SoftCta readers open the election authority’s official ranked-choice round-by-round report and its certification notices, confirm the tie and elimination rules in local law, and log which report vintage the contract names. They keep campaign claims, unofficial tabulations and social projections as context only.

Reading the quote step by step

• Read the full title and rules, including the named settlement source and the time zone.
• Convert the Yes and No prices to implied probabilities and note the gap between them.
• Subtract fees and spread to see the effective price you would actually face.
• Write your own probability range and the evidence behind it, then compare.
• Check related and near-duplicate markets on other venues for consistency.

Closing SoftCta checklist

• Re-read the venue definition in your own words before reacting to a price.
• Convert prices with fee and spread awareness; verify live cents on the operator.
• Prefer primary settlement sources over secondary headlines and social summaries.
• Treat ChanceWire hubs, movers, and tools as orientation — not order entry.
• Confirm age, location, and product eligibility; SoftCta pages will not suggest location spoofing.
• If clarity is incomplete, watching is a complete SoftCta outcome — no pick-selling urgency required.

SoftCta habits

• Write your own probability range before checking the crowd price.
• Prefer dated primary sources over social summaries.
• Compare related markets when a single book looks extreme.
• Size curiosity with fees and depth in mind; substantial risk of loss.