Athletics vs. Baltimore Orioles

Platform comparison

Market context

The Athletics face the Orioles on 10 May at 1:35PM ET in an American League matchup. The 0% implied probability on an Athletics victory reflects the substantial gap in recent performance between these franchises. Baltimore enters May as a competitive AL East contender, whilst Oakland has been rebuilding through a multi-year teardown that accelerated following their relocation announcement. The Orioles' roster construction—featuring established position players and a developed pitching rotation—contrasts sharply with the Athletics' youth-focused approach and limited veteran depth.

Historical context suggests such probability extremes warrant scrutiny. Single-game outcomes in baseball carry inherent variance; even heavily favoured teams lose roughly 35-40% of games against weaker opponents over a season. The Athletics have demonstrated capacity to win games against superior competition, though inconsistently. The 0% reading likely reflects aggregate season-to-date performance rather than game-specific factors, as both teams' records and strength metrics would typically generate a probability range of 25-40% for the underdog in a neutral matchup.

Traders should monitor pitching assignments and injury updates through game time. Recent roster moves or bullpen availability changes could alter expected run production. Weather conditions at the venue may favour either team's offensive profile. The settlement window extends to 17 May, allowing for postponement scenarios if weather forces a delay, though cancellation without a make-up game remains unlikely under MLB protocols.

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

Resolution source: This market settles from the official publication at https://www.mlb.com/. A proposer submits the result to the UMA Optimistic Oracle on Polygon, the two-hour challenge window opens, and the smart contract pays out in USDC.

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Is this market available outside the US?

PolyGram 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 PolyGram?

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

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.

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.