Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Prediction Market UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Completed Match | 100% |
| Rome: Teodora Kostovic vs Lucia Bronzetti Set 1 O/U 8.5 | 100% |
| Rome: Teodora Kostovic vs Lucia Bronzetti Set 2 O/U 8.5 | 100% |
| Rome: Teodora Kostovic vs Lucia Bronzetti Set 1 O/U 9.5 | 100% |
| Rome: Teodora Kostovic vs Lucia Bronzetti Set 2 O/U 9.5 | 100% |
| Rome: Teodora Kostovic vs Lucia Bronzetti Set Handicap +/-1.5 | 100% |
| Rome: Teodora Kostovic vs Lucia Bronzetti | 0% |
| Rome: Teodora Kostovic vs Lucia Bronzetti Set 1 Winner | 0% |
| Rome: Teodora Kostovic vs Lucia Bronzetti Set 2 Winner | 0% |
| Rome: Teodora Kostovic vs Lucia Bronzetti Total Sets: O/U 2.5 | 0% |
| Rome: Teodora Kostovic vs Lucia Bronzetti Set Handicap +/-1.5 | 0% |
| Rome: Teodora Kostovic vs Lucia Bronzetti Match O/U 21.5 | 0% |
| Rome: Teodora Kostovic vs Lucia Bronzetti Set 1 O/U 10.5 | 0% |
| Rome: Teodora Kostovic vs Lucia Bronzetti Match O/U 22.5 | 0% |
| Rome: Teodora Kostovic vs Lucia Bronzetti Set 2 O/U 10.5 | 0% |
| Rome: Teodora Kostovic vs Lucia Bronzetti Match O/U 23.5 | 0% |
Market context
A women’s tennis match in Rome pits Teodora Kostovic against Lucia Bronzetti, with the market betting on who advances after their scheduled contest on 16 July 2026. In prediction markets, a YES share pays out if the named outcome occurs—here, if Kostovic wins and moves forward—while a NO share pays if she does not. The current crowd-implied probability of Kostovic advancing sits at 0%, suggesting the market heavily favours Bronzetti, despite bookmakers listing Bronzetti at 59% and Kostovic at 41% for a straight win[2].
Historically, such extreme divergences between prediction-market sentiment and bookmaker odds often signal either a liquidity gap or delayed information absorption. In past WTA events, markets with near-zero implied probabilities for lower-ranked players have occasionally corrected sharply once match-day line-ups or injury updates were confirmed, especially when early trading lacked depth. The 0% figure here may reflect minimal participation rather than a definitive assessment of Kostovic’s chances, as bookmakers still assign her a 41% win probability[2].
Traders should monitor official WTA Rome draw confirmations, player injury reports, and any schedule changes before the 4:00 AM ET start time. A recent 365Scores preview notes active betting markets on Kostovic’s performance metrics, including service breaks and game totals, indicating some pre-match interest despite the low YES probability[1]. Any late withdrawal or delay beyond seven days would reset the market to a 50-50 outcome, making timing and official announcements critical catalysts.
Methodology
This page reviews Rome: Teodora Kostovic vs Lucia Bronzetti across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Prediction Market UK, which mirrors the Polymarket order book at 0% fees.
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.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- 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.
- 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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