Athletics vs. San Francisco Giants

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Active sub-markets

Market context

The Oakland Athletics face the San Francisco Giants in a Tuesday night MLB clash at Oracle Park, with first pitch scheduled for 9:45pm ET on 23 June 2026. The game determines the winner of a single contest, resolving to Athletics if they win and Giants if they prevail, with postponed games remaining open until completion.

Historically, when a team like the Athletics (38-40, second in AL West) plays a struggling Giants squad (31-46, fourth in NL West) at home, the home favourite typically commands a 60–65% implied win probability. Yet the prediction market here assigns only 19% to the Athletics, a stark divergence from the -120 moneyline favoured by sportsbooks and the +102 Athletics line cited by Action Network, which even rates the A’s as slight favourites [3]. This 19% figure suggests either a deep concern over pitching matchups or a mispricing relative to the consensus that the Athletics should be favoured, even at plus money.

Traders should monitor the starting pitchers announced before 8pm ET, as a late change to a weaker Giants starter could shift odds sharply toward the Athletics. The total is set at 8.5 runs, indicating expectations of an offensive game, which may favour the Athletics’ stronger road record [3]. Recent coverage from ESPN highlights the Giants’ home disadvantage in this matchup, reinforcing the anomaly of the low Athletics probability [1]. Any delay in the official starting lineups or weather updates from Oracle Park could act as a catalyst for rapid price movement.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Athletics vs. San Francisco Giants 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

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

Where can I trade this market with the lowest fees?

On Best Prediction Markets, 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.

What does it cost to trade on Best Prediction Markets?

Zero. Best Prediction Markets 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.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Best Prediction Markets 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.