Skip to main content
Market snapshot: . Prices may have changed since this snapshot.
Events
GroupKALSHIPOLYMARKETCross-Platform

How many Senate and Governor races will Republicans win in Harris states?

How many Senate and Governor races will Republicans win in Harris states?
Vol

PM $51.3K · K 32.8K contracts

|
Events

2

|
Markets

14

Polymarket vs Kalshi

Snapshot from

As of Oct 30, 2026, 9:00 AM UTC, 2 is priced at 39.5% on Polymarket and 41% on Kalshi.

Outcome (Yes price)PolymarketKalshiGap
2Same question, fine print differs39.5%41%1.5 pts
3Same question, fine print differs23.7%23.5%0.2 pts
1Same question, fine print differs13.7%12%1.7 pts
4Same question, fine print differs11.9%9.5%2.4 pts
5Same question, fine print differs7.3%5.5%1.8 pts
0Same question, fine print differs3%3%0.1 pts
6+Same question, fine print differs2.5%2%0.5 pts

Yes prices for outcomes an automated review found to ask the same question on both platforms. 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 $51.3K · K 32.8K contracts

Reported volume · provider units

14

Saved contracts

7

Same-question pairs

Source snapshot: Oct 30, 2026, 9:00 AM UTC

About This Event

at the November 3, 2026 general election If the number of 2026 U.S. Senate, including special elections, and gubernatorial general elections, held in the 19 states that Kamala Harris carried in the 2024 presidential election, won by a nominee of the Republican Party is exactly X at the November 3, 2026 general election, then the market resolves to Yes. The qualifying jurisdictions are the 19 states that Kamala Harris won in the 2024 presidential election: California, Colorado, Connecticut, Delaware, Hawaii, Illinois, Maine, Maryland, Massachusetts, Minnesota, New Hampshire, New Jersey, New Mexico, New York, Oregon, Rhode Island, Vermont, Virginia, and Washington. The District of Columbia, which Harris also carried, is excluded from this list because it is not a state and holds no U.S. Senate or gubernatorial election, so its inclusion or exclusion cannot change the count. The count is the number of the 27 2026 U.S. Senate general elections, including special elections, and 2026 gubernatorial general elections held in those 19 states, as fixed at Issuance, that are won by a nominee of the Republican Party. A candidate who wins as an independent, or under a fusion, minor-party, or write-in line without being the Republican Party's own nominee, does NOT count, even if no Republican nominee appeared on the ballot. If a runoff is required to determine the winner of any race, the runoff result governs.

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 supplied Kalshi event asks how many 2026 U.S. Senate races (including special elections) and gubernatorial general elections held in the 19 states that Kamala Harris carried in 2024 will be won by a Republican Party nominee. The rules state that the count is taken "at the November 3, 2026 general election" and that the District of Columbia is excluded because it "is not a state and holds no U.S. Senate or gubernatorial election" [1]. Candidates who win "as an independent, or under a fusion, minor-party, or write-in line without being the Republican Party's own nominee, does NOT count" [1]. If a runoff decides a race, "the runoff result governs" [1].

Each market asks about one exact count, except the final one, which asks about "at least 6" [1]. These thresholds are separate contracts and should not be read as a single distribution.

Reading the snapshot

The provider observed these prices at 2026-10-15T16:13:13.851Z, and the source was retrieved at 2026-10-15T19:21:35.238Z [1]. These are point-in-time snapshots, not live or executable quotes. The Yes prices were: exactly 0 at 0.025, exactly 1 at 0.12, exactly 2 at 0.365, exactly 3 at 0.25, exactly 4 at 0.115, exactly 5 at 0.05, and at least 6 at 0.01 [1].

The exact-count Yes prices sum to 0.925 and the "at least 6" price is 0.01, but these figures should not be treated as a probability distribution or averaged across platforms. The snapshot includes only one platform, and the rules and thresholds differ across the seven markets. Volume data was not used in this comparison.

The listed end date for every market is 2027-03-15T15:00:00.000Z [1]. This is a contract closing time from the provider data, not the date the election is held or the date a result is confirmed. The source excerpt separately says "Listed end time: not supplied" [1], so the reader should treat the closing time as provider-reported and unverified against the rules text.

What remains uncertain

The evidence does not show why any price is where it is, how many traders hold each view, or what recent developments may have affected the market. It also does not establish election outcomes, since the November 3, 2026 vote had not been reported in the supplied material. The sample warning notes that the providers "do not establish that the providers list every possible real-world outcome" [1]. Because the snapshot is from earlier today, it should not be read as the current price.

References

  1. Kalshi: How many Senate and Governor races will Republicans win in Harris states?. Provider data observed 2026-10-15T16:13:13.851Z.

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

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.

PolymarketKalshiPolitics
Iowa Senate and Governor Combo

Iowa Senate and Governor Combo

PM $276.0K · K 4.51M contracts

Blue tsunami in 2026?

Kalshi: Will Democrats hold 215 or more seats in the House after the 2026 midterms AND hold 48 or more seats in the Senate after the 2026 midterms?

Related contracts

PM Yes 64.5%Rules differK Yes 90.5%

Blue wave in 2026?

Kalshi: Will Democrats hold 215 or more seats in the House after the 2026 midterms AND hold 48 or more seats in the Senate after the 2026 midterms?

Related contracts

PM Yes 87%Rules differK Yes 90.5%

Blue wave in 2026?

Kalshi: Will the number of Iowa races won by the Democratic Party among IA-01, IA-02, IA-03, the U.S. Senate seat, and the Governorship during the November 3, 2026 general election be exactly 5?

Related contracts

PM Yes 87%Rules differK Yes 40.5%

Related or unreviewed contracts may settle differently. Their gap is not an equivalent-contract comparison.

Saved prices; check contract rules.

8 saved comparisonsNext deadline Nov 4, 2026 UTC
PolymarketKalshiPolitics
Closest Governor's Race?

Closest Governor's Race?

PM $76.4K · K 1.76M contracts

Will Georgia be the closest Governor's race in 2026?

Kalshi: Will Georgia have the smallest margin of victory in 2026 United States gubernatorial elections?

Same question, fine print differs

PM Yes 17.7%Rules differK Yes 17.5%

Will Georgia be the closest Senate race in 2026?

Kalshi: Will Georgia have the smallest margin of victory in 2026 United States gubernatorial elections?

Related contracts

PM Yes 0.5%Rules differK Yes 17.5%

Will Kansas be the closest Senate race in 2026?

Kalshi: Will Kansas have the smallest margin of victory in 2026 United States gubernatorial elections?

Related contracts

PM Yes 14.9%Rules differK Yes 8.1%

Related or unreviewed contracts may settle differently. Their gap is not an equivalent-contract comparison.

Saved prices; check contract rules.

62 saved comparisonsNext deadline Nov 4, 2026 UTC
KalshiPolitics
Bluest state to elect a Republican senator in 2026?

Bluest state to elect a Republican senator in 2026?

K 198.8K contracts
Will Florida be the state with the highest 2024 Harris-minus-Trump presidential margin among states where a Republican candidate wins a 2026 U.S. Senate election?Yes 42.5%
Will Maine be the state with the highest 2024 Harris-minus-Trump presidential margin among states where a Republican candidate wins a 2026 U.S. Senate election?Yes 32.5%
Will Ohio be the state with the highest 2024 Harris-minus-Trump presidential margin among states where a Republican candidate wins a 2026 U.S. Senate election?Yes 8%
+17 moreNext deadline Apr 3, 2027 UTC
KalshiPolitics
Reddest state to elect a Democratic senator in 2026?

Reddest state to elect a Democratic senator in 2026?

K 194.3K contracts
Will Texas be the state with the highest 2024 Trump-minus-Harris presidential margin among states where a Democratic candidate wins a 2026 U.S. Senate election?Yes 26.5%
Will Kansas be the state with the highest 2024 Trump-minus-Harris presidential margin among states where a Democratic candidate wins a 2026 U.S. Senate election?Yes 23.5%
Will South Carolina be the state with the highest 2024 Trump-minus-Harris presidential margin among states where a Democratic candidate wins a 2026 U.S. Senate election?Yes 17.5%
+13 moreNext deadline Apr 3, 2027 UTC
PolymarketKalshiPolitics
Alaska House, Governor & Senate combo

Alaska House, Governor & Senate combo

PM $81.8K · K 388.2K contracts

Will Democrats sweep the Alaska Senate and Governor elections?

Kalshi: Will the Democratic party win the governorship in Alaska

Related contracts

PM Yes 68%Rules differK Yes 86.5%

Will Democrats sweep the Alaska Senate and Governor elections?

Kalshi: Will Alaska Governor winner be Democratic party and Alaska Senate winner be Democratic party?

Same question, fine print differs

PM Yes 68%Rules differK Yes 68.5%

Will Democrats sweep the Alaska Senate and Governor elections?

Kalshi: Alaska combo: Democratic sweep?

Related contracts

PM Yes 68%Rules differK Yes 2%

Related or unreviewed contracts may settle differently. Their gap is not an equivalent-contract comparison.

Saved prices; check contract rules.

10 saved comparisonsNext deadline Nov 4, 2026 UTC
PolymarketKalshiPolitics
Georgia Governor-Senate combo

Georgia Governor-Senate combo

PM $25.7K · K 125.2K contracts

Will Democrats sweep the Georgia Senate and Governor elections?

Kalshi: Will Georgia Governor winner be Democratic party and Georgia Senate winner be Democratic party?

Same question, fine print differs

PM Yes 62%Rules differK Yes 62.5%

Will Republicans win the Georgia Governor election and Democrats win the Georgia Senate election?

Kalshi: Will Georgia Governor winner be Republican party and Georgia Senate winner be Democratic party?

Same question, fine print differs

PM Yes 34.5%Rules differK Yes 35.5%

Will Republicans sweep the Georgia Senate and Governor elections?

Kalshi: Will Georgia Governor winner be Republican party and Georgia Senate winner be Republican party?

Same question, fine print differs

PM Yes 1.9%Rules differK Yes 3%

Related or unreviewed contracts may settle differently. Their gap is not an equivalent-contract comparison.

Saved prices; check contract rules.

4 saved comparisonsNext deadline Nov 4, 2026 UTC

Market Insights

Price gaps of 2 pp+

1

Same-question pairs

7

Largest saved gap: 2.4 percentage points.

Price differences do not establish arbitrage. Check each pair's review, current order prices, fees and settlement rules.