Resolution criteria on PolyGram: This is a market on the KBO baseball game between Samsung Lions and LG Twins, scheduled for May 13 at 5:30AM ET. This market will resolve to "Samsung Lions" if the Samsung Lions win the game. This market will resolve to "LG Twins" if the LG Twins 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: Samsung Lions vs. LG Twins | 50% YES | 51% NO |
Samsung Lions face LG Twins in a Korean Baseball Organisation fixture scheduled for 13 May 2026 at 5:30 AM ET. The current order book on Polymarket reflects a 49% implied probability for a Samsung Lions victory, indicating near-parity between the two sides as perceived by active traders. Settlement occurs on 20 May, providing a week-long window for the match to be completed should postponement occur.
The Lions and Twins represent two of the KBO's most established franchises, with historical matchups offering limited predictive value given seasonal variance and roster turnover. Samsung has shown competitive strength in recent seasons, whilst LG maintains consistent mid-table performance. Head-to-head records between these clubs typically split evenly across full seasons, which contextualises why the market has settled near 50-50 odds. Seasonal form, injury status, and recent momentum shifts carry greater weight than historical fixture patterns in determining outcomes.
Key variables for traders include pitcher assignments, which the KBO typically announces 24–48 hours before fixtures, and weather conditions affecting early-morning play. Roster availability updates and any late-stage injuries to key players could shift the probability meaningfully. The settlement window's extension to 20 May accommodates potential weather delays common in Korean spring baseball, though cancellation without a make-up game would trigger a 50-50 resolution. Current order book depth and any sharp movement in the final 48 hours before play should signal whether informed traders possess material information about team readiness.
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: Samsung Lions vs. LG Twins" 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 $11K of resting liquidity puts this market in the below the median by volume for sports contracts on PolyGram. Order-book depth is modest — expect a couple of cents of slippage on $1k+ trades.
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 50%. 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 20 May 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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