Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Robinhood Prediction Markets) Pick polygram.ink (preferred broker) |
53% | 47% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
53% | 47% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Go to the live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Go to the live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Go to the live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Go to the live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 1st 5 Innings O/U 2.5 | 53% |
| 1st 5 Innings O/U 3.5 | 52% |
| 1st 5 Innings O/U 4.5 | 52% |
| 1st 5 Innings O/U 5.5 | 52% |
| San Diego Padres vs. Miami Marlins | 51% |
| 1st 5 Innings Spread -1.5 | 50% |
| 1st 5 Innings Spread -1.5 | 50% |
| 1st 5 Innings O/U 6.5 | 50% |
| Extra Innings | 50% |
| O/U 7.5 | 50% |
| O/U 8.5 | 42% |
| Spread -1.5 | 37% |
| Spread -1.5 | 33% |
| O/U 9.5 | 32% |
| Spread -2.5 | 26% |
| Spread -2.5 | 23% |
| NRFI | 0% |
Market context
The **San Diego Padres vs. Miami Marlins** game is scheduled for 26 July at 1:40pm ET, and the market is currently pricing a near coin-flip outcome with a **51%** crowd-implied chance on the Padres side. Because the settlement is tied to the official final result, any postponement that leads to a completed make-up game keeps the market live; only a cancellation with no make-up, or a tie, would force a 50-50 resolution.
For context, a 51% implied probability is only a slight edge and should be read as a very shallow favourite rather than a strong baseball view. On platforms that show **implied probability**, such as Polymarket, the number is easy to compare directly with a neutral 50% baseline, while venues that quote **decimal odds** require an extra conversion to see the same signal. Betfair and Smarkets also differ mainly in fee treatment and access: exchange-style markets usually allow price discovery through matching rather than fixed bookmaker margins, but KYC and jurisdictional access can still limit who can participate.
For traders, the main catalysts are late line-up confirmation, starting pitcher changes, and any weather or schedule announcements that could affect whether the game is played as planned. MLB games can be delayed, suspended, or rescheduled, and the market language here makes the completion status decisive for settlement. Any pre-match injury report, rest day for a key bat, or a pitching swap can move the price more than the raw 51% figure suggests, especially on a low-margin exchange market where small information changes can matter.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $588K.
Methodology
This page compares San Diego Padres vs. Miami Marlins specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. The live probability is the Polymarket mid; the comparison columns summarise each venue's fee structure, KYC, settlement currency and payment rails. Every CTA routes to Robinhood Prediction Markets, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). On-chain settlement clears in minutes — the fastest payout path of the four.
FAQ
- What does Polymarket cost vs Kalshi?
- Polymarket: 0% fees, only Polygon network costs (~$0.01/trade). Kalshi: up to 7% per trade plus spread. For high-frequency traders, Polymarket is dramatically cheaper.
- Which platform has the deepest liquidity?
- Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.
- Is Betfair a Polymarket alternative?
- Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.
- Which platform is accessible globally?
- Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Robinhood Prediction Markets has a different geo footprint and routes to Polymarket's order book at 0% fees.
- Which platform supports Klarna/SOFORT?
- Directly: none. Polymarket accepts only USDC on Polygon. Robinhood Prediction Markets offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.
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