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Live prediction market odds for WA-01 House winner?. Compare prices across Kalshi and Polymarket US and Polymarket.

Kalshi

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Claim offerLegal in USAVerified Sep 14, 2026

Kalshi / Polymarket US / Polymarket

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WA-01 House winner?

2026-11-03

Best price · tap to trade

Suzan DelBene (D)98¢1.02xPolymarket USMary Silva (R)3¢33.33xKalshi

About This Market

Traders give Suzan DelBene (D) about a 96.9% chance. Mary Silva (R) follows at 2.2%. Compare prices from Kalshi, Polymarket US, and Polymarket. The largest cross-platform price difference is 1.7 percentage points.

Traders give Suzan DelBene (D) about a 96.9% chance. Mary Silva (R) follows at 2.2%. Compare prices from Kalshi, Polymarket US, and Polymarket. The largest cross-platform price difference is 1.7 percentage points.

Polymarket and Kalshi are tracking the race for the WA-01 House seat in the upcoming 2026 elections. This contest is pivotal as it could influence the balance of power in Congress, with various factors like voter turnout and party support playing crucial roles in shaping the odds.

Price History

Multi-Platform Probabilities
Loading 30D data…

Live Markets

3 platforms
OutcomeConsensus
KalshiKalshi
Polymarket USPolymarket US
PolymarketPolymarket
Best price
SD
Suzan DelBene (D)
97%
Kalshi98¢
Polymarket US98¢
Polymarket97¢
Polymarket US1.02x98¢
PlatformImplied %Yes bid / askNo bid / ask
KalshiKalshi
97.5%95¢98¢2¢5¢
Polymarket USPolymarket US
97.5%97¢98¢2¢3¢
PolymarketPolymarket
95.8%95¢97¢3¢5¢
MS
Mary Silva (R)
2%
Kalshi3¢
Polymarket US3¢
Polymarket2¢
Kalshi35.71x3¢
PlatformImplied %Yes bid / askNo bid / ask
KalshiKalshi
1.5%0¢3¢97¢100¢
Polymarket USPolymarket US
3.0%2¢3¢97¢98¢
PolymarketPolymarket
2.0%2¢2¢98¢99¢
KalshiKalshiPolymarket USPolymarket USPolymarketPolymarket

Best price among US-regulated venues.

Candidate Spotlight

About Suzan DelBene (D)

Suzan DelBene is the U.S. Representative for Washington's 1st Congressional District. She has served in this role since 2012 and is currently the Chair of the Democratic Congressional Campaign Committee. DelBene has a background in technology and business, having held leadership positions at Microsoft and co-founded Nimble Technology.

Smart Trade Router

$
¢

Resolution Oracles

KalshiKalshi
Kalshi Rules
Read Full Market Rulebooks
Stats
Spread1.7%
Platforms3
Candidates2
Leader

Suzan DelBene (D)

96.9% avg

Market RulebooksOfficial settlement criteria and edge cases

Market Rulebook: WA-01 House winner?

Official settlement criteria, resolution sources, and edge cases across Kalshi and Polymarket US.

KalshiKalshi
Primary Rule

If the House member sworn in for WA-01 for the term beginning in 2027 is a member of the Democratic Party, then the market resolves to Yes.

Edge Cases

This market is eligible for accelerated determination after a consensus of media organizations project the winner. See full rules for details.

Resolution Oracles
Kalshi Rules
Polymarket USPolymarket US
Primary Rule

This market will settle to Yes if a representative of the Democratic Party wins the 2026 midterm election for the WA-01 congressional district seat. Outcome sourced from relevant government authorities. The determination of the winner includes any runoff, tiebreak, or other relevant procedure under the applicable rules of the relevant jurisdiction.

Frequently Asked Questions

What factors influence the odds for the WA-01 House winner?

Key factors include polling data, candidate fundraising, and local issues that resonate with voters. Additionally, national trends and party strategies can significantly impact voter turnout.

How does the WA-01 House race affect national politics?

The outcome of this race could shift the majority in the House of Representatives, affecting legislative priorities. A change in representation may also influence future elections and party strategies nationwide.

When is the election for the WA-01 House seat?

The election is scheduled for November 3, 2026. This date is significant as it aligns with the general election cycle, when multiple federal and state offices are contested.

What does the WA-01 House winner prediction market track?

The outcomes listed above show how traders are pricing this question. Compare outcome prices from Kalshi, Polymarket US, Polymarket in one place. Each price reflects the market’s implied probability, not a guaranteed result.

What are the latest WA-01 House winner odds?

The latest available prices are Suzan DelBene (D): 97.5¢ on Kalshi, 95.8¢ on Polymarket, 97.5¢ on Polymarket US; Mary Silva (R): 1.5¢ on Kalshi, 2.0¢ on Polymarket, 3.0¢ on Polymarket US. Prices are quoted in cents per $1 share. Check the venue for executable prices and available liquidity.

Learn more:How to Read Prediction Market PricesCompare Fees Before You TradeNew to Polymarket?

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WA-01 Democratic Win Odds Drop 24 Points to 70% With No NewsCook rates WA-01 "Solid D" with D+50 PVI, yet Democratic odds fell 93% to 70% in 72 hours. Kalshi and Polymarket currently sit 48 points apart.Jun 19, 2026