Athletics vs. Arizona Diamondbacks

Platform comparison

Market context

The Athletics defeated the Arizona Diamondbacks 5–2 in their MLB game on Monday, 20 July 2026, with Jeff McNeil delivering a pinch-hit single in the seventh inning to secure the go-ahead runs[1]. This result means the prediction market titled “Athletics vs. Arizona Diamondbacks” has already resolved to YES, as the Athletics won the contest.

On Polymarket, this contract trades at 100% YES in USDC on Polygon, reflecting the certainty that the outcome is settled. Conditional tokens for this market now carry no event risk, as the governing body—MLB—has published final statistics confirming the Athletics’ victory[1][6]. Historical cases of similar MLB prediction markets show that once official results are released, prices converge instantly to 100% or 0%, with no further volatility unless a game is postponed or canceled, which did not occur here[6].

Traders should monitor the official MLB final statistics page for any post-game corrections, though such revisions are rare once the 24-hour window closes[6]. No further catalysts exist: the game is complete, the settlement window remains open only for administrative confirmation, and the 50–50 tie rule is irrelevant given the decisive win. The market’s resolution is final, and the on-chain tokens will settle automatically once Polymarket ingests the official result[6].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Athletics vs. Arizona Diamondbacks across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Scam?. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

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.

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.