Minnesota Twins vs. Arizona Diamondbacks

Platform comparison

Active sub-markets

Market context

The Minnesota Twins beat the Arizona Diamondbacks 16-8 on 20 June, with Minnesota breaking the game open in a 10-run fifth inning and Byron Buxton hitting a grand slam.[2] For a market that resolves on the official final score, that is the decisive event; the crowd-implied 100% YES state is consistent with a game that has already completed and produced a clear winner under standard MLB settlement logic.[2]

For traders using bots or conditional orders, the practical lesson is to verify the game state against a live score feed and then lock on to the official final rather than a pre-game schedule. ESPN lists the matchup as a completed final for 20 June, while the next meeting between the same teams is shown separately as an upcoming game in Arizona, which helps avoid conflating a settled event with the next scheduled meeting.[1][2] In programmatic terms, the key trigger is a transition from scheduled/live to final; once that occurs, there is no remaining dependency unless the contest is officially reopened due to postponement, cancellation or a tied outcome.[1][2]

The main edge case to monitor in similar MLB markets is whether a game is suspended, postponed or completed in full, because those distinctions determine whether a market settles normally or stays open for a make-up date. Here, the final-score source already shows a completed result, so any tooling that ingests schedules, live status and post-game box scores should mark the contract as resolved and stop polling for further price discovery.[2]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Minnesota Twins vs. Arizona Diamondbacks on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

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

Is this market available outside the US?

Polymarket Review UK is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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.

What does it cost to trade on Polymarket Review UK?

Zero. Polymarket Review UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket Review UK triggers a quick verification flow that finishes in minutes.

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.