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 |
|---|---|
| Mantova 1911 | 100% |
| SS Lazio | 0% |
| Draw | 0% |
Market context
Lazio’s Coppa Italia tie with Mantova was scheduled for Sunday, 16 August 2026 at the Stadio Olimpico, and the market’s 0% YES implies an outcome already priced as settled or effectively impossible in the remaining window. The practical read is that this is not a live probability for the match result so much as a post-event or stale listing, which matters when comparing platforms: on Polymarket the market price is usually read as an implied probability, while on Betfair and Smarkets you are effectively looking at decimal odds translated into a market view with exchange commission on winnings.
For framing, the football context was lopsided even before kick-off: Lazio were at home, in a higher division, and widely expected to progress, while Mantova were the lower-tier side. Recent previews still treated Lazio as the clear favourite, with suggested scorelines such as 4-1, and the winner was set to meet Palermo or Lecce in the next round. The actual result then moved sharply against the favourite, with Mantova winning 2-0, which is the kind of upset that explains why pre-match prices can compress on one side and then gap violently once team news or early match events land.
Traders comparing books should watch for squad announcements, late rotation, and confirmation of kick-off and competition scheduling, especially in early-round cup ties where line-ups can shift. KYC and access also matter: Polymarket and Kalshi tend to be more geographically constrained, while Betfair and Smarkets offer broader familiar exchange-style mechanics but take commission, so the same 0% reading can reflect different ways of presenting or settling a market rather than the same underlying exposure.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $81K.
Methodology
This page compares SS Lazio vs. Mantova 1911 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.
- 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.
- 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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