Resolution criteria on PolyGram: The Sejong mayoral election is scheduled to take place on June 3, 2026. This market will resolve according to the candidate who wins this election. Interim, temporary, or caretaker mayors will not count. If the result of this election isn't known by December 31, 2026, 11:59 PM ET, the market will resolve to "Other". 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 South Korean government, specifically the National Election Commission (https://www.nec.go.kr/).
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
| Cho Sangho | 97% YES | 3% NO |
| Candidate A | — | |
| Candidate C | — | |
| Candidate E | — | |
| Candidate G | — | |
| Candidate I | — | |
| Candidate K | — | |
| Candidate M | — | |
South Korea will hold a mayoral election for Sejong City on 3 June 2026. Sejong is a planned administrative capital city established in 2012, with a current population exceeding 360,000. The election will determine the city's chief executive for a four-year term. The market's 97% implied probability reflects strong consensus on the election occurring as scheduled, with settlement contingent on a clear winner being declared by year-end 2026.
South Korean municipal elections typically proceed without significant disruption, though the 2022 local elections saw competitive races across major cities. Sejong's mayoral contests have historically featured lower national profile than Seoul or Busan races, yet remain subject to the same electoral framework and timeline. The high implied probability suggests traders assess minimal risk of postponement, cancellation, or legal challenges that would prevent resolution by the deadline. Comparable municipal elections in South Korea have consistently concluded with official results within weeks of polling day.
Key catalysts include candidate registration deadlines and campaign period announcements from the National Election Commission, typically occurring in the months preceding June 2026. Political developments at the national level—particularly shifts in ruling party dynamics or policy priorities affecting Sejong's development agenda—could influence candidate positioning. The market's order book currently reflects confidence in standard electoral procedures, though traders should monitor any announcements regarding electoral law changes or administrative disruptions that could affect the election timeline or result certification process.
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 "Sejong Mayoral Election Winner" 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.
$4K in lifetime turnover and $4K of resting liquidity puts this market in the below the median by volume for elections contracts on PolyGram. Order-book depth is thin — large orders may need to be split across the book or executed as limit orders.
The market has been open for under a month — fresh enough that information asymmetry remains a real factor.
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 3 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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