Trade: D.C. United SC vs. St. Louis City SC - Exact Score

Market context

D.C. United and St. Louis City will meet on 16 May 2026 at 7:30 PM ET in an MLS regular-season fixture. The market settles on the exact final score after 90 minutes plus stoppage time, excluding extra time. The 7% implied probability reflects a specific scoreline among dozens of possible outcomes listed on Polymarket's order book, with the remaining 93% distributed across alternative results and the catch-all "Any Other Score" category.

Exact-score markets in MLS typically see low individual probabilities because the combinatorial nature of football results fragments liquidity across many outcomes. Historical MLS matches show that scorelines of 1–1, 1–0, and 2–1 account for roughly 40–50% of all results, whilst any single specific outcome rarely exceeds 10–12% probability. The current 7% pricing suggests traders view this particular scoreline as moderately unlikely relative to the modal outcomes, though without knowing which specific score is listed, the assessment depends on whether it falls within or outside the modal distribution.

Traders should monitor team news closer to the fixture date, including injury reports and lineup confirmations, which typically emerge 48–72 hours before kickoff. D.C. United's recent form, St. Louis City's home-and-away record splits, and any weather conditions affecting play in May will influence scoring expectations. Polymarket's order book will reflect real-time repricing as these factors crystallise, with the settlement window remaining open until the match concludes.

Resolution source

This market settles from the official outcome published at https://www.mlssoccer.com/schedule/scores. A proposer submits the final result to the UMA optimistic oracle on Polygon; the two-hour dispute window closes and payouts clear in USDC.

How to trade this market step by step

The mechanics for trading "D.C. United SC vs. St. Louis City SC - Exact Score" 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.

1. Sign in on polygram.ink with your email — no full KYC under $1,500 lifetime trading volume.
2. Deposit USDC on Polygon (lowest fees, ~$0.01 per transaction) or Ethereum. Funds credit after 12 confirmations.
3. Pick a side. Buy YES if you believe the event will happen; buy NO if you think it won't. The current YES price reflects the market's collective probability.
4. Size your position. If you stake 100 USDC at 50% YES, you'll receive shares that pay $200 if YES resolves true — a 100% gross return. If NO resolves, your shares are worth $0.
5. Set risk controls (optional). Stop-loss, take-profit, and limit-order types all supported. Use the trade ticket's slippage box to cap your maximum entry price.
6. Wait for resolution. When the event resolves on-chain via the UMA optimistic oracle, the winning side settles to 100¢ automatically and USDC hits your balance within seconds. Withdrawable to any wallet you control.

How active is this market?

$0 in lifetime turnover and $27K 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.

Key terms

YES / NO share

A binary outcome token that pays $1.00 if the underlying claim resolves true (YES) or false (NO), and $0 otherwise. The market price between 0¢ and 100¢ is the implied probability.

CLOB

Central limit order book. The matching engine that pairs YES buyers with NO buyers (effectively the same trade). Polymarket's CLOB on Polygon executes trades on-chain via the conditional-tokens framework.

Liquidity

USDC capital sitting in resting limit orders inside the order book. Deeper liquidity means smaller slippage on large trades and a tighter bid-ask spread.

UMA optimistic oracle

The on-chain dispute system that settles each Polymarket market. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution.

Slippage

The difference between the displayed mid-price and your fill price. Affects market orders most; limit orders avoid slippage but may take time to fill.

Conditional token

ERC-1155 outcome share issued by Gnosis Conditional Tokens on Polygon. The token type that resolves to $1.00 or $0.00 at settlement.

See the full prediction-market glossary →

Frequently asked questions

Risk and regulatory note

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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