Athletics vs. San Diego Padres

Platform comparison

Active sub-markets

Market context

The Athletics and San Diego Padres were due to meet at Petco Park on 22 May, with San Diego priced as a modest home favourite in the live market. The crowd-implied 47% YES on Athletics leaves the game close to a coin flip, but the recent team profiles point slightly towards the Padres: San Diego were 29-20 and 14-12 at home, while the Athletics were 26-24 and 16-12 away. That is consistent with the wider head-to-head picture, where San Diego have taken five of the last six meetings across the past three seasons.

Recent comparable form also leans towards San Diego. TeamRankings had the Padres 5-1 in the head-to-head sample, while the Athletics have been the more volatile side in recent games, with outside sources noting a poor runline record over their last four matches. AiScore’s longer sample shows both clubs capable of trading wins in the matchup, but the Padres have been the steadier side over the most recent five-game stretch. That makes a sub-50% Athletics price easier to understand than a true toss-up, especially given San Diego’s stronger home split.

The main catalysts are the final line-ups, any late pitching changes and whether either club rests regulars after the game is confirmed. The sources provided did not include a beat report on injuries or probable starters, so the key dependency is the official pre-game card and any late update from the clubs. If the Padres’ rotation holds and their regulars start, the market should continue to reflect their home edge; if San Diego shuffle the order or scratch a starter, the implied probability on Athletics would be easier to justify.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Athletics vs. San Diego Padres across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at PolyGram — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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?

On PolyGram, which mirrors the Polymarket order book at 0% fees. 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 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.