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Events
GroupPOLYMARKET

TX-20 House Election Winner

TX-20 House Election Winner
Vol

PM $40.2K

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Events

1

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Markets

2

Current odds

Snapshot from

As of Oct 28, 2026, 12:00 AM UTC, the highest-priced outcome on Polymarket is Joaquin Castro (D) at 97.4%.

Polymarket

  1. Joaquin Castro (D)97.4%
  2. Edgardo Rafael Baez (R)1.7%

Yes prices. They are not order quotes; check each platform's rules, fees and live prices before trading.

AI Analysis

Trader mode: Market mechanics, assumptions and risks

PM $40.2K

Reported volume · provider units

2

Saved contracts

0

Same-question pairs

Source snapshot: Oct 28, 2026, 12:00 AM UTC

About This Event

This market will resolve according to the party of the candidate who wins the TX-20 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 2026. ​A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democrat or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the House elections are conclusively called by this market's resolution sources. This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the United States government, specifically the Federal Election Commission (https://www.fec.gov/).

This analysis is awaiting a background update, so its prices may be older than the odds above.

Snapshot observed 2026-10-15T16:13:13.851Z. This analysis describes that snapshot and is not a live news update.

What the contract measures

The Polymarket event "TX-20 House Election Winner" is tied to party rather than to a named candidate. Per the event rules, the market "will resolve according to the party of the candidate who wins the TX-20 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections" [1]. The rules state that the midterm elections "will take place on November 3, 2026" [1]. That date is taken from the contract text and is not an announcement of a new event.

Resolution depends on how a winner's party is determined. The rules say a candidate's party is set by "their ballot-listed or otherwise identifiable affiliation" when House elections are "conclusively called" [1]. Ambiguity is resolved by "a consensus of credible reporting," and if ambiguity remains, by "the official results as reported by the United States government, specifically the Federal Election Commission" [1].

The listed end time is 2026-11-04T04:59:00Z [1]. This is the listed close time for the contract and is not the same as the date a result is called or the market resolves.

Reading the snapshot

The saved observation was taken at 2026-10-15T16:13:13Z, and the evidence was retrieved at 2026-10-15T20:35:39Z [1]. The prices below describe that observation only and are not live quotes.

The event has two contracts. The Democratic Party contract shows a Yes price of 0.964 and a No price of 0.036. The Republican Party contract shows a Yes price of 0.0185 and a No price of 0.9815 [1]. The two Yes prices are separate contracts and should not be averaged or combined. Their sum, about 0.98, is also not a verified probability, and a gap from 1.00 does not by itself establish an opportunity, since these are snapshot prices rather than executable quotes.

Both contracts are listed as active [1]. The sample covers all two saved markets for this event, and it is not partial [1].

What remains uncertain

The sample warning states that all saved markets for these events are included, but "This does not establish that the providers list every possible real-world outcome" [1]. The evidence does not show whether other outcomes exist.

The evidence contains no trading volume, liquidity measure, trader count, or explanation for why prices are where they are. It also contains no recent news about the race. Readers should check the current contract page and the official rules before drawing any conclusion about the election result.

References

  1. Polymarket: TX-20 House Election Winner. Provider data observed 2026-10-15T16:13:13.851Z.

AI-generated analysis based on market data. Not financial advice.

Saved Oct 15, 2026 UTC

This saved content is awaiting a background update. It may contain outdated claims; use the dated market data and provider rules for the latest available information.

Overview

PredictPedia's TX-20 House Election Winner event is a contract on which political party wins the U.S. House seat for Texas's 20th congressional district in the 2026 midterm elections. The provider's rules say the market resolves according to the party of the candidate who wins that seat, with the election scheduled for November 3, 2026 [1]. The saved event lists the contract as active, with a listed end time of 2026-11-04T04:59:00Z [1]. That end time is a contract rule, not an announced date for when results will be called. The contract is one of several Texas House races covered in the wider 2026 cycle. A Wikipedia entry on the 2026 House elections in Texas states that the elections will elect the state's thirty-eight U.S. representatives, one from each congressional district, on the same day as other House, Senate, and state and local elections [2]. The supplied material does not identify the candidates in TX-20, their ballot listings, or the state of the race beyond the rules themselves, so this article does not describe the contest's competitiveness.

Historical Context

The supplied Wikipedia entry on the 2026 Texas House elections reports that the primary elections took place on March 3, 2026, and that runoff elections took place on May 26 in races where no candidate received over 50 percent in a primary [2]. The general election is scheduled for November 3, 2026 [2]. The supplied sources do not describe the TX-20 district's previous results or candidates, so no further history of this seat is given here.

Why It Matters

The contract measures which major party will hold the TX-20 seat after the 2026 midterms. Its rules say that a candidate's party is determined by their ballot-listed or otherwise identifiable affiliation with that party when all 2026 House elections are conclusively called by the market's resolution sources [1]. For a candidate with no ballot-listed affiliation to either major party, the rules assign a party based on the party with which that candidate most recently expressed intent to caucus at the same point [1]. Resolution is based on a consensus of credible reporting, and if that is ambiguous, on official results reported by the Federal Election Commission [1]. The saved event includes two binary markets that restate this question. One asks whether the Democratic Party wins the seat, with a Yes price of 0.964 and a No price of 0.036 in the snapshot. The other asks whether the Republican Party wins the seat, with a Yes price of 0.0185 and a No price of 0.9815 [1]. These figures are observation-time snapshots from the provider, not executable quotes or verified probabilities. They do not show trading depth, and the saved volume information does not indicate how many traders took part. Because the two markets are separate contracts in the same event, their prices should not be treated as an arbitrage signal by themselves.

Snapshot context

The latest published provider snapshot for this topic was observed on 2026-10-15 at 16:13 UTC. It contains listings from Polymarket. Market descriptions and listed closing times define the contracts; they do not establish that the real-world outcome has occurred. This article does not include a separately verified news update. [1]

Frequently Asked Questions

When will this contract resolve?

The rules tie resolution to when all 2026 House elections are conclusively called by the market's resolution sources, and the election is scheduled for November 3, 2026 [1]. The saved listed end time is 2026-11-04T04:59:00Z [1], but that is a contract date and does not establish when results will be reported.

How is a candidate's party decided?

A candidate's party is based on their ballot-listed or otherwise identifiable affiliation at the time the House elections are conclusively called [1]. A candidate without a ballot-listed affiliation to either major party is assigned a party based on the party with which they most recently expressed intent to caucus [1].

What happens if the reporting is unclear?

The rules say resolution is based on a consensus of credible reporting. If there is ambiguity, the market resolves solely on official results reported by the Federal Election Commission [1].

Does the price show the chance that a party wins?

The snapshot prices are provider observations at a specific time and are not executable quotes or verified probabilities [1]. They should be read as market prices at that moment, not as confirmed odds.

Was this helpful?
Saved Oct 15, 2026 UTC

AI-written background. References identify the evidence used; Wikipedia links under Learn More are additional reading. Prices and provider rules are dated snapshots. This is not financial advice.

Prices are catalog snapshots and may have changed. Check each market's rules and observation time.

PolymarketPolitics
TX-16 House Election Margin of Victory

TX-16 House Election Margin of Victory

PM $31.6K
Will the Democratic Party candidate win the 2026 TX-16 House election by 30%-35%?Yes 31.9%
Will the Democratic Party candidate win the 2026 TX-16 House election by 25%-30%?Yes 22%
Will the Democratic Party candidate win the 2026 TX-16 House election by 35%-40%?Yes 21.6%
+7 moreNext deadline Nov 4, 2026 UTC
PolymarketPolitics
TX-11 House Election Margin of Victory

TX-11 House Election Margin of Victory

PM $25.9K
Will the Republican Party candidate win the 2026 TX-11 House election by 20%-25%?Yes 21.9%
Will the Republican Party candidate win the 2026 TX-11 House election by 25%-30%?Yes 18.7%
Will the Republican Party candidate win the 2026 TX-11 House election by 15%-20%?Yes 18%
+7 moreNext deadline Nov 4, 2026 UTC
PolymarketPolitics
TX-07 House Election Margin of Victory

TX-07 House Election Margin of Victory

PM $25.7K
Will the Democratic Party candidate win the 2026 TX-07 House election by 35%-40%?Yes 34%
Will the Democratic Party candidate win the 2026 TX-07 House election by 40%-45%?Yes 21%
Will the Democratic Party candidate win the 2026 TX-07 House election by 30%-35%?Yes 16%
+7 moreNext deadline Nov 4, 2026 UTC
PolymarketPolitics
TX-01 House Election Margin of Victory

TX-01 House Election Margin of Victory

PM $21.9K
Will the Republican Party candidate win the 2026 TX-01 House election by 45%-50%?Yes 25%
Will the Republican Party candidate win the 2026 TX-01 House election by 40%-45%?Yes 23.7%
Will the Republican Party candidate win the 2026 TX-01 House election by 35%-40%?Yes 21.5%
+7 moreNext deadline Nov 4, 2026 UTC
PolymarketPolitics
TX-33 House Election Margin of Victory

TX-33 House Election Margin of Victory

PM $17.7K
Will the Democratic Party candidate win the 2026 TX-33 House election by 45%-50%?Yes 31%
Will the Democratic Party candidate win the 2026 TX-33 House election by 50%-55%?Yes 30.5%
Will the Democratic Party candidate win the 2026 TX-33 House election by 40%-45%?Yes 20.5%
+7 moreNext deadline Nov 4, 2026 UTC
PolymarketPolitics
TX-29 House Election Margin of Victory

TX-29 House Election Margin of Victory

PM $15.0K
Will the Democratic Party candidate win the 2026 TX-29 House election by 50%-55%?Yes 24.5%
Will the Democratic Party candidate win the 2026 TX-29 House election by 40%-45%?Yes 18.5%
Will the Democratic Party candidate win the 2026 TX-29 House election by 45%-50%?Yes 17.5%
+7 moreNext deadline Nov 4, 2026 UTC

Market Insights

Price gaps of 2 pp+

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