Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Completed Match | 100% |
| Rome: Lola Radivojevic vs Deborah Chiesa Set Handicap +/-1.5 | 100% |
| Rome: Lola Radivojevic vs Deborah Chiesa | 0% |
| Rome: Lola Radivojevic vs Deborah Chiesa Set 1 Winner | 0% |
| Rome: Lola Radivojevic vs Deborah Chiesa Set 1 O/U 8.5 | 0% |
| Rome: Lola Radivojevic vs Deborah Chiesa Match O/U 21.5 | 0% |
| Rome: Lola Radivojevic vs Deborah Chiesa Set 2 O/U 8.5 | 0% |
| Rome: Lola Radivojevic vs Deborah Chiesa Total Sets: O/U 2.5 | 0% |
| Rome: Lola Radivojevic vs Deborah Chiesa Set 1 O/U 9.5 | 0% |
| Rome: Lola Radivojevic vs Deborah Chiesa Set Handicap +/-1.5 | 0% |
| Rome: Lola Radivojevic vs Deborah Chiesa Set 2 Winner | 0% |
| Rome: Lola Radivojevic vs Deborah Chiesa Match O/U 22.5 | 0% |
| Rome: Lola Radivojevic vs Deborah Chiesa Set 2 O/U 9.5 | 0% |
| Rome: Lola Radivojevic vs Deborah Chiesa Set 1 O/U 10.5 | 0% |
| Rome: Lola Radivojevic vs Deborah Chiesa Match O/U 23.5 | 0% |
| Rome: Lola Radivojevic vs Deborah Chiesa Set 2 O/U 10.5 | 0% |
Market context
The Rome Challenger Women’s Singles match between Lola Radivojevic and Deborah Chiesa, originally set for 4:00 AM ET on 15 July 2026, remains unplayed as of 10 AM UTC today, with the prediction market currently pricing Radivojevic’s advancement at 0% YES despite external odds favouring her win at 69%[1]. This stark divergence mirrors past crypto-prediction anomalies where on-chain sentiment detached from traditional tennis markets, often triggered by delayed settlements or unresolved match-status disputes that force 50-50 outcomes under the contract’s cancellation clause.
Historically, similar 0% crowd-implied probabilities in tennis markets have preceded either match cancellations or late-stage withdrawals, as seen in the 2024 WTA Rome Challenger where a top-ranked player’s injury led to a 50-50 resolution after seven days of delay[2]. In those cases, USDC-settled contracts on btc-prediction.bet resolved cleanly once the tournament committee confirmed no winner, tying the outcome to BTC/ETH macro volatility only if whale flows shifted settlement liquidity during the delay window.
Traders should monitor the official Challenger Women Singles Rome schedule for any status updates on the Radivojevic–Chiesa fixture, particularly announcements regarding player availability or venue changes, as these directly determine whether the match proceeds within the seven-day settlement window[2]. A recent preview notes Radivojevic’s strong first-set probability at 66%, but if the match is postponed beyond 22 July 2026, the contract auto-resolves to 50-50 regardless of on-court performance, making schedule dependencies the primary catalyst for position risk.
Methodology
This page reads Rome: Lola Radivojevic vs Deborah Chiesa on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed alongside for venue context. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.
Resolution & payout
Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.
Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.
FAQ
- What are crypto prediction markets?
- Crypto prediction markets are on-chain smart contracts where you buy YES or NO shares on a future crypto event (e.g. "BTC above $100k by year-end"). The market price between 0¢ and 100¢ is the implied probability.
- What does a transaction cost on Polygon?
- Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.
- How does UMA secure the resolution?
- The UMA Optimistic Oracle uses a bond system: a proposer posts a bond, a two-hour challenge window opens. On dispute the losing side forfeits the bond — financial incentive for honest resolution.
- How volatile are crypto prediction markets?
- Crypto markets react to spot prices — a 5% BTC move typically shifts a "BTC above X by date" market 10-20%. Polymarket crypto market liquidity is usually six-figure USD, sufficient for active trading.
- Which crypto markets exist on Polymarket?
- Currently active markets include BTC/ETH/SOL price targets, halving dates, ETF approvals, hard-fork outcomes and Layer-2 TVL thresholds. The list updates weekly; biggest volume sits on BTC and ETH price forecasts.
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