Resolution criteria on PolyGram: This is a market on the KBO baseball game between Kiwoom Heroes and Doosan Bears, scheduled for June 6 at 4:00AM ET. This market will resolve to "Kiwoom Heroes" if the Kiwoom Heroes win the game. This market will resolve to "Doosan Bears" if the Doosan Bears win the game. If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, or ends in a tie, this market will resolve 50-50. The primary resolution source will be official information from the KBO. A consensus of credible reporting may also be used.
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
| KBO: Kiwoom Heroes vs. Doosan Bears | 51% YES | 50% NO |
The Korean Baseball Organisation (KBO) will host a regular season matchup between the Kiwoom Heroes and Doosan Bears on 6 June at 4:00 AM ET. The current order book on Polymarket reflects a 51% implied probability for a Kiwoom victory, suggesting near-parity between the two sides in trader assessment. The settlement window closes on 13 June, allowing a week for the fixture to be completed should postponement occur.
Historically, both franchises have maintained competitive rosters within the KBO's nine-team structure. The Heroes have shown variable performance across recent seasons, whilst the Bears represent one of the league's more established organisations with consistent playoff appearances. Head-to-head records between these clubs typically reflect closely matched competition, which aligns with the current probability distribution hovering near 50-50. Recent KBO seasons have seen weather-related postponements in early June, particularly given Korea's monsoon season patterns, though this remains a secondary consideration relative to team form.
Key variables for traders include roster availability and recent performance trends leading into the fixture. Injury reports or late lineup adjustments from either organisation could shift the probability meaningfully. The KBO's official website and Korean sports media outlets including Naver Sports provide real-time updates on team news. Weather forecasts for the Seoul metropolitan area on 6 June will become increasingly relevant as the date approaches, particularly given historical June postponement rates in Korean baseball.
This market settles from the official outcome published at https://www.koreabaseball.com/. A proposer submits the final result to the UMA optimistic oracle on Polygon; the two-hour dispute window closes and payouts clear in USDC.
The mechanics for trading "KBO: Kiwoom Heroes vs. Doosan Bears" are the same as any other PolyGram sporting 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.
$0 in lifetime turnover and $17 of resting liquidity puts this market in the below the median by volume for sports 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.
As of today, traders on Polymarket price this outcome at 51%. The number updates continuously as the order book clears. PolyGram mirrors the same live odds with locale-aware formatting and USDC settlement.
Resolution is sourced from https://www.koreabaseball.com/. Settlement is executed by the UMA optimistic oracle on Polygon, with a 2-hour dispute window before payouts clear.
This prediction market is scheduled to close on 13 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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