Resolution criteria on PolyGram: This market will resolve according to the two candidates who receive the most votes in the primary, regardless of party, to contest the seat for California's 17th congressional district in the U.S. House of Representatives in the 2026 midterm elections. The California primary is scheduled to take place on June 2, 2026. If no nominees are announced by November 3, 2026, 11:59PM ET, this market will resolve to "Other". The resolution source for this market will be a consensus of official sources, including https://www.sos.ca.gov/. Any replacement of the nominees before election day will not change the resolution of the market.
PolyGram is an on-chain prediction market where you trade YES or NO outcome shares with real USDC on Polygon. For this market, buy YES if you believe the event will happen, or NO if you think it won't. Your maximum loss is your stake — winning shares pay $1.00 each at resolution. Unlike sportsbooks, there is no house edge: prices are set by supply and demand from other traders and reflect the crowd's real-time probability.
Market outcomes
| Ro Khanna | 89% YES | 11% NO |
| Nicholas Finan | 1% YES | 99% NO |
| Ha Phan | 10% YES | 90% NO |
| Ritesh Tandon | 32% YES | 68% NO |
| Ethan Agarwal | 69% YES | 32% NO |
California's 17th congressional district will hold its primary election on 2 June 2026, with the top two vote-getters advancing to the general election regardless of party affiliation. The current order book on Polymarket reflects a 94% implied probability that two nominees will be announced by the 3 November 2026 deadline, suggesting traders assess the likelihood of a contested primary proceeding to completion as very high. This probability is formed through active trading on the platform, with the spread between buyers and sellers converging near this level.
California's top-two primary system, implemented since 2012, has consistently produced two nominees in every statewide and congressional race, establishing a strong historical precedent for market participants. The 17th district, currently represented by Jim Clyburn's counterpart in terms of seniority and influence, typically sees robust candidate participation in election cycles. No major structural barriers—such as redistricting disputes or legal challenges—currently threaten the primary's scheduled execution, and the state's election administration infrastructure has demonstrated reliable capacity to certify results within standard timeframes.
Key catalysts for traders include candidate filing deadlines in early 2026, which will clarify the field's composition and competitiveness. The district's demographic and political composition will shape whether the primary attracts crowded fields or limited challengers, potentially affecting turnout and vote concentration. Any unexpected vacancy, redistricting changes, or administrative delays would represent material tail risks to the current probability assessment, though none are presently evident in public filings or legislative calendars.
Resolution is handled by the UMA optimistic oracle on Polygon. A proposer submits the outcome, a two-hour dispute window opens, and if no one stakes a counter-claim the payout is final. Contested outcomes escalate to UMA token-holder voting. Payouts clear in USDC to the winning side.
The mechanics for trading "CA-17 Primary Winners" are the same as any other PolyGram event contract. Each YES share resolves to $1 if the event happens, or $0 if it doesn't. The current price between 0¢ and 100¢ is the market's probability estimate, set live by the order book.
$54K in lifetime turnover and $22K of resting liquidity puts this market in the above the median by volume for elections contracts on PolyGram. Order-book depth is modest — expect a couple of cents of slippage on $1k+ trades.
Last 24 hours alone saw $68 in turnover, consistent with the market's lifetime daily-average pace.
The market has been open for 4 months — the price has had time to stabilise as new information arrived.
Higher-volume markets tend to have tighter spreads and faster price discovery — meaning the displayed YES/NO percentages are more likely to reflect the true crowd-implied probability rather than a single trader's directional view.
Resolution is handled by the UMA optimistic oracle on Polygon. A proposer submits the outcome, a 2-hour dispute window opens, and if uncontested the payout is final. Contested outcomes escalate to UMA token holders.
This prediction market is scheduled to close on 2 June 2026. After the resolving event occurs, settlement typically clears within 24 hours once the UMA optimistic oracle confirms the outcome. All payouts are in USDC on the Polygon network.
To trade on this prediction market, create a free PolyGram account at polygram.ink, deposit USDC via Polygon, and place a YES or NO order on the outcome you believe in. You can learn more on our how-it-works page. Your maximum loss is limited to your stake — there is no leverage or margin.
When the outcome is determined, winning YES shares pay out $1.00 each in USDC, while losing shares pay $0. Settlement is handled by the UMA optimistic oracle on Polygon — a proposer submits the result, a two-hour dispute window opens, and if uncontested, payouts are distributed automatically. You can withdraw your winnings to any Polygon wallet.
Prediction-market positions can lose 100% of staked capital. Outcomes are uncertain by definition — historical accuracy of crowd-implied probabilities is high in aggregate but not for any single market. PolyGram does not provide investment advice. Trade only with capital you can afford to lose.
Regulatory status varies by jurisdiction. Germany, the United States, and most EU countries treat Polymarket-style event contracts under one of three frameworks: financial derivative, gambling product, or unregulated novel asset. Consult local counsel before trading.
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