Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Robinhood Prediction Markets) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 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 |
|---|---|
| O/U 0.5 | 100% |
| O/U 1.5 | 100% |
| O/U 2.5 | 100% |
| Both Teams to Score | 100% |
| 1st Half O/U 0.5 | 100% |
| SC Corinthians Paulista O/U 0.5 | 100% |
| SC Corinthians Paulista O/U 1.5 | 100% |
| SC Internacional O/U 0.5 | 100% |
| SC Corinthians Paulista 1st Half O/U 0.5 | 100% |
| Both Teams to Score in Second Half | 100% |
| 2nd Half O/U 0.5 | 100% |
| 2nd Half O/U 1.5 | 100% |
| SC Corinthians Paulista 2nd Half O/U 0.5 | 100% |
| SC Internacional 2nd Half O/U 0.5 | 100% |
| SC Corinthians Paulista (-1.5) | 0% |
| SC Internacional (-1.5) | 0% |
| SC Corinthians Paulista (-2.5) | 0% |
| SC Internacional (-2.5) | 0% |
| O/U 3.5 | 0% |
| O/U 4.5 | 0% |
| O/U 5.5 | 0% |
| Both Teams to Score in First Half | 0% |
| 1st Half O/U 1.5 | 0% |
| 1st Half O/U 2.5 | 0% |
| SC Corinthians Paulista O/U 2.5 | 0% |
| SC Internacional O/U 1.5 | 0% |
| SC Internacional O/U 2.5 | 0% |
| SC Corinthians Paulista 1st Half O/U 1.5 | 0% |
| SC Internacional 1st Half O/U 0.5 | 0% |
| SC Internacional 1st Half O/U 1.5 | 0% |
| 2nd Half O/U 2.5 | 0% |
| SC Corinthians Paulista 2nd Half O/U 1.5 | 0% |
| SC Internacional 2nd Half O/U 1.5 | 0% |
Market context
SC Corinthians Paulista meet SC Internacional in the Copa do Brasil, and the market’s **0% YES** price points to no traded conviction that a designated “more markets” condition will be met before settlement on 6 August. That looks extreme next to the underlying fixture itself: the clubs have drawn heavily over time, with one H2H database listing 14 draws in 26 meetings, and recent meetings have been tight rather than one-sided.[6][10][16]
For a platform-comparison read, Polymarket-style crowd pricing is best viewed as an implied probability, while Kalshi and many sportsbook-like books quote decimal or American odds, so the same underlying belief can look numerically different once fees and spread are included. On a low-liquidity event such as this, a 0% print can reflect thin order flow as much as certainty; Betfair and Smarkets also matter because commission and account access vary by jurisdiction, and KYC reach can determine whether a trader can even see or trade the market at all, which affects how quickly prices adjust around the football event itself.
The main catalysts are straightforward: official team news, any late changes to the competition schedule, and whether the match proceeds as listed at 19:00 ET / 23:00 UTC on 6 August. Live match reporting already showed Corinthians and Internacional involved in a Copa do Brasil tie on that date, which makes confirmed kick-off, lineup releases and any suspension or postponement notice the practical triggers for repricing.[2][16]
Methodology
We read SC Corinthians Paulista vs. SC Internacional - More Markets from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live mid is the canonical probability; the side-by-side columns benchmark fees, KYC, settlement currency and deposit rails so you can choose the venue that fits your jurisdiction and trade size.
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
- Polymarket vs Kalshi — which is better?
- Depends on your location. Kalshi is CFTC-regulated, US-only with full KYC. Polymarket is global, on-chain, no KYC up to $1,500. Polymarket has ~10x higher liquidity but higher regulatory risk.
- 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 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.
- Are all these platforms regulated?
- No. Kalshi is CFTC-regulated (US). Betfair and Smarkets are UK Gambling Commission licensed. Polymarket operates without explicit regulation — a different risk profile than a regulated sportsbook.
- 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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