Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
PolyGram Pick polygram.ink |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on PolyGram → |
Polymarket polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on PolyGram → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on PolyGram → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on PolyGram → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on PolyGram → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on PolyGram.
Active sub-markets
Market context
Buvaysar Gadamauri and Tommaso Compagnucci were due to meet in the Cervia Challenger on clay, with the market asking who advances rather than who simply appears. The crowd price has sat at 100% YES, which is only meaningful if the tournament has already reached a settled result or the feed is lagging behind live scoring. On Polymarket, that is a binary yes/no view; on Kalshi or Betfair-style books the same fixture would usually be shown as an implied probability or decimal line, making a 100% print easier to spot as a data issue or a post-result placeholder than a tradable price. Smarkets and Betfair also differ from Polymarket in access and friction, as they require KYC and are typically limited by jurisdiction, while Polymarket’s on-chain format can move faster but is more exposed to stale market states when an event is underway or already finished.
For context, ATP Challenger matches can produce sharp late repricing when a result is confirmed, because the settlement outcome is tied to whether a player actually advances, not to pre-match favourites. Recent ATP Tour results for Cervia show the match listed with a completed scoreline, which is the key comparable case here: once an official result is posted, the market should resolve to the advancing player rather than remain near its opening state. Traders should watch the ATP Cervia results page and any live-score feeds for confirmation of completion, retirement, or walkover, since a match that starts but is not finished still resolves on who advances if an official winner is awarded. If no winner is determined and the event slips beyond the seven-day settlement window, the market rules fall back to 50-50 regardless of the initial 100% crowd read.
Methodology
This page compares Cervia: Buvaysar Gadamauri vs Tommaso Compagnucci specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. Live odds come from the Polymarket order book; the other venues' contract details are maintained manually because their APIs aren't directly comparable. Every CTA routes to PolyGram, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.
Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.
FAQ
- Where can I trade this market with the lowest fees?
- On PolyGram, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- Is this market available outside the US?
- PolyGram is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.
- 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 does it cost to trade on PolyGram?
- Zero. PolyGram routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in minutes.
Trade Cervia: Buvaysar Gadamauri vs Tommaso Compagnucci on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
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