Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| O/U 0.5 | 100% |
| CA Aldosivi O/U 0.5 | 100% |
| 2nd Half O/U 0.5 | 99% |
| CA Aldosivi 2nd Half O/U 0.5 | 99% |
| Both Teams to Score in Second Half | 76% |
| O/U 1.5 | 75% |
| 2nd Half O/U 1.5 | 75% |
| CA Rosario Central O/U 0.5 | 68% |
| Both Teams to Score | 66% |
| 2nd Half O/U 2.5 | 62% |
| CA Aldosivi O/U 1.5 | 61% |
| CA Aldosivi O/U 2.5 | 51% |
| CA Rosario Central 2nd Half O/U 0.5 | 50% |
| CA Rosario Central 2nd Half O/U 1.5 | 50% |
| CA Aldosivi 2nd Half O/U 1.5 | 50% |
| O/U 2.5 | 37% |
| CA Rosario Central O/U 1.5 | 28% |
| O/U 3.5 | 13% |
| CA Aldosivi (-1.5) | 10% |
| CA Rosario Central (-1.5) | 6% |
| CA Rosario Central O/U 2.5 | 6% |
| O/U 4.5 | 3% |
| CA Rosario Central (-2.5) | 1% |
| O/U 5.5 | 1% |
| 1st Half O/U 2.5 | 1% |
| CA Aldosivi (-2.5) | 0% |
| Both Teams to Score in First Half | 0% |
| 1st Half O/U 0.5 | 0% |
| 1st Half O/U 1.5 | 0% |
| CA Rosario Central 1st Half O/U 0.5 | 0% |
| CA Rosario Central 1st Half O/U 1.5 | 0% |
| CA Aldosivi 1st Half O/U 0.5 | 0% |
| CA Aldosivi 1st Half O/U 1.5 | 0% |
Market context
Rosario Central’s meeting with Aldosivi is priced by the broader market as a strong home favourite, which puts the prediction contract’s **6% YES** probability well below mainstream sportsbook estimates. Bwin shows Rosario Central at 1.49, the draw at 3.90 and Aldosivi at 7.25, while ESPN’s consensus odds translate to roughly a 66-69% home-win chance; independent odds pages are similar, with Rosario Central generally around 1.50-1.54 and Aldosivi between 7.00 and 8.50.[1][2][7][11][16]
For a “more markets” contract, the key frame is that price leaders are already leaning to a relatively one-sided, low-scoring game rather than a broad upset profile. ESPN has both teams to score priced at +170 for yes and -230 for no, and over 2.5 goals at +277 versus -462 for under, while one prediction model puts Rosario Central’s win probability near 64% and the most likely exact scores at 1-0, 2-0 and 1-1.[2][7] That makes 6% look more like a tail outcome unless the market is specifically tied to a niche contingency such as an away result, a scoreline combination, or another derivative market rather than the match winner itself.[2][7][15]
Traders should watch late team-news because Argentina line-ups can move short markets quickly when a first-choice striker, goalkeeper or centre-back is ruled out close to kick-off. Rosario Central’s odds were broadly stable through the day on some comparison feeds, which suggests there has not been a major public re-pricing yet, but the contract remains sensitive to confirmed line-ups, injury updates and any late rotation from either side before the 6:30 PM ET start.[9][18]
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
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
- 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'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.
- 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 PolyGram 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.
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