Detroit Tigers vs. Chicago Cubs

Platform comparison

Market context

The Chicago Cubs beat the Detroit Tigers 11-2 at Wrigley Field on 22 July, so a Polymarket contract keyed to that result should already be trading as a near-lock rather than a live coin flip. With the market settled in USDC on Polygon via conditional tokens, the practical question for users is not who won, but whether the final MLB score has been fully recognised by the event source that governs resolution.[1][2]

A 91% crowd-implied YES price is broadly consistent with a match that has already completed and been reported by schedule and results pages. On comparable MLB head-to-head markets, the late-stage price usually compresses sharply once the box score is official, because the only remaining risk is administrative rather than sporting: a postponed game, an unresolved suspension, or a scoring discrepancy that delays settlement. In this case, the listed game time was 8:10 PM ET and the fixture was the third game of a three-game series, which makes the final result straightforward to verify against the official record.[2][1]

For traders, the main catalysts are not line movement or pitcher news, but any confirmation around completion, postponement, or a rare correction to the official final statistics. If the game had been delayed or suspended, the contract would stay open until completion; if it had been cancelled with no make-up or ended in a tie, it would resolve 50-50 under the market rules. That means the useful thing to watch is the governing-body final stat line, not secondary media summaries, because Polymarket settlement follows the recognised event outcome rather than market speculation.[2]

Sources: 1 · 2

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Scam? trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.