Resolution criteria on PolyGram: In the upcoming Chile Primera game between O'Higgins FC and Everton de Viña del Mar, scheduled for May 31, 2026 at 5:30 PM ET: This event contains halftime result markets for home, draw, and away outcomes within the first 45 minutes of regular play plus stoppage time.
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
| O'Higgins FC | 49% YES | 52% NO |
| Draw | 49% YES | 52% NO |
| Everton de Viña del Mar | 49% YES | 52% NO |
O'Higgins FC will host Everton de Viña del Mar in a Chile Primera Division fixture on 31 May 2026, with the halftime result market settling on outcomes within the opening 45 minutes plus stoppage time. The current order book on Polymarket reflects a 49% implied probability for the home side's halftime advantage, suggesting near-parity in trader expectations for an O'Higgins lead or draw versus an Everton result at the interval.
Halftime markets in South American domestic football typically exhibit volatility relative to full-match odds, as early tactical setups and individual errors carry outsized weight before teams adjust. O'Higgins' recent form and home record at Rancagua provide baseline context; Everton's coastal fixture schedule and travel logistics from Viña del Mar historically influence first-half intensity. The 49% probability sits between typical home-field advantage (which averages 52–55% in Chilean football) and the competitive balance suggested by recent head-to-head records between these mid-table clubs.
Traders should monitor team news released in the days preceding 31 May, particularly injury confirmations or tactical announcements that might signal aggressive early play. Weather conditions at Rancagua—altitude effects and pitch state—can influence passing accuracy and pressing intensity in the opening period. Fixture congestion in the Chilean calendar leading into late May may affect squad rotation decisions, with implications for starting eleven composition and halftime substitution patterns that shape early-game dynamics.
This market settles from the official outcome published at https://anfp.cl/. 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 "O'Higgins FC vs. Everton de Viña del Mar - Halftime Result" 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 $39 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.
Resolution is sourced from https://anfp.cl/. 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 31 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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