Cleveland Guardians vs. Miami Marlins

Platform comparison

Market context

The Cleveland Guardians face the Miami Marlins tonight at loanDepot Park in a game that has tipped slightly toward the visitors, with the crowd assigning Cleveland a 52% chance to win. The Marlins enter this matchup on a six-game winning streak after sweeping Seattle, while the Guardians sit second in the AL Central with a 48–46 record, having lost their last outing to the Rangers[3][5].

Historically, head-to-head records between these clubs show a narrow edge to Cleveland, who have won 17 of 31 meetings with a higher points-per-game average of 4.5 compared to Miami’s 4.1[9]. This 52% implied probability aligns closely with that modest historical advantage, suggesting the market is pricing in the Guardians’ slight edge despite the Marlins’ current momentum and home-field status.

Traders should monitor the starting lineups for any late pitching changes, as the Marlins have already confirmed Meyer will not start Sunday’s game against Cleveland, hinting at possible rotation adjustments ahead of tonight’s contest[5]. The game is scheduled for 7:10 PM ET, with the over/under set at 7 runs and Miami listed as the favourite by 120 cents on the moneyline, indicating bookmakers see a tighter contest than the prediction market currently reflects[5][8].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Cleveland Guardians vs. Miami Marlins 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

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

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 Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Prediction Today 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.