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% |
| 1st Half O/U 0.5 | 100% |
| Cagliari Calcio O/U 0.5 | 100% |
| Cagliari Calcio 1st Half O/U 0.5 | 100% |
| Cagliari Calcio (-1.5) | 0% |
| SS Arezzo (-1.5) | 0% |
| Cagliari Calcio (-2.5) | 0% |
| SS Arezzo (-2.5) | 0% |
| O/U 1.5 | 0% |
| O/U 2.5 | 0% |
| O/U 3.5 | 0% |
| O/U 4.5 | 0% |
| O/U 5.5 | 0% |
| Both Teams to Score | 0% |
| Both Teams to Score in First Half | 0% |
| 1st Half O/U 1.5 | 0% |
| 1st Half O/U 2.5 | 0% |
| Cagliari Calcio O/U 1.5 | 0% |
| Cagliari Calcio O/U 2.5 | 0% |
| SS Arezzo O/U 0.5 | 0% |
| SS Arezzo O/U 1.5 | 0% |
| SS Arezzo O/U 2.5 | 0% |
| Cagliari Calcio 1st Half O/U 1.5 | 0% |
| SS Arezzo 1st Half O/U 0.5 | 0% |
| SS Arezzo 1st Half O/U 1.5 | 0% |
| Both Teams to Score in Second Half | 0% |
| 2nd Half O/U 0.5 | 0% |
| 2nd Half O/U 1.5 | 0% |
| 2nd Half O/U 2.5 | 0% |
| Cagliari Calcio 2nd Half O/U 0.5 | 0% |
| Cagliari Calcio 2nd Half O/U 1.5 | 0% |
| SS Arezzo 2nd Half O/U 0.5 | 0% |
| SS Arezzo 2nd Half O/U 1.5 | 0% |
Market context
Cagliari Calcio and SS Arezzo are scheduled to contest a Coppa Italia fixture on 14 August at 12:30 PM ET. The market currently reflects 0% implied probability for "More Markets," suggesting traders expect either no additional betting options to be offered on this match or that the settlement criteria will not be met by the deadline. This early-stage Italian Cup tie involves a Serie A side against a lower-division opponent, a pairing typical of Coppa Italia's opening rounds where market depth often remains thin across platforms.
Historical precedent from Coppa Italia markets on Polymarket, Kalshi, and Betfair reveals divergent liquidity patterns. Kalshi's strict regulatory framework in the US typically restricts sports betting markets to major European leagues and competitions, whereas Betfair and Smarkets maintain broader coverage of Italian domestic fixtures. Polymarket's offshore structure has permitted wider market proliferation, though decimal odds displays and fee structures (Polymarket charges 2% on both sides versus Betfair's variable commission) create different effective probabilities for identical underlying events. Earlier Coppa Italia rounds on these platforms have shown that secondary markets—those offering conditional outcomes or "more markets" options—rarely materialise unless primary match markets achieve £10,000+ in cumulative volume.
Traders should monitor official Coppa Italia scheduling announcements and broadcaster confirmations through mid-August. Fixture postponements or cancellations, whilst uncommon in August, would trigger settlement ambiguity. The settlement window closes 14 August at 16:30 UTC, allowing only four hours post-match for market resolution, a constraint that may deter platform operators from listing derivative markets without pre-match confirmation of additional offerings.
Methodology
This page compares Cagliari Calcio vs. SS Arezzo - More Markets 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
- 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.
- 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.
- What about Smarkets as an alternative?
- Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.
- 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.
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