Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Qué Es) Pick polygram.ink (preferred broker) |
68% | 32% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
68% | 32% | 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 |
|---|---|
| Iasi Open: Anna Bondar vs Sara Sorribes Tormo Set 1 O/U 8.5 | 68% |
| Iasi Open: Anna Bondar vs Sara Sorribes Tormo | 58% |
| Iasi Open: Anna Bondar vs Sara Sorribes Tormo Set 1 Winner | 55% |
| Iasi Open: Anna Bondar vs Sara Sorribes Tormo Set 2 Winner | 54% |
| Completed Match | 50% |
| Iasi Open: Anna Bondar vs Sara Sorribes Tormo Match O/U 21.5 | 48% |
| Iasi Open: Anna Bondar vs Sara Sorribes Tormo Set 2 O/U 9.5 | 48% |
| Iasi Open: Anna Bondar vs Sara Sorribes Tormo Set 2 O/U 8.5 | 42% |
| Iasi Open: Anna Bondar vs Sara Sorribes Tormo Match O/U 22.5 | 42% |
| Iasi Open: Anna Bondar vs Sara Sorribes Tormo Total Sets: O/U 2.5 | 38% |
| Iasi Open: Anna Bondar vs Sara Sorribes Tormo Set Handicap +/-1.5 | 38% |
| Iasi Open: Anna Bondar vs Sara Sorribes Tormo Match O/U 23.5 | 38% |
| Iasi Open: Anna Bondar vs Sara Sorribes Tormo Set 2 O/U 10.5 | 34% |
| Iasi Open: Anna Bondar vs Sara Sorribes Tormo Set 1 O/U 9.5 | 33% |
| Iasi Open: Anna Bondar vs Sara Sorribes Tormo Set Handicap +/-1.5 | 26% |
| Iasi Open: Anna Bondar vs Sara Sorribes Tormo Set 1 O/U 10.5 | 23% |
Market context
Anna Bondar faces Sara Sorribes Tormo in the Round of 32 at the WTA Iași Open today, with Polymarket pricing the contract for Bondar advancing at 57% YES. Traders on Polygon settle these positions in USDC using conditional tokens, where the market resolves to Bondar if she wins, to Sorribes Tormo if she advances, or to a 50-50 split if the match is cancelled, tied, or delayed beyond seven days without a winner.
Historical head-to-head data complicates the current pricing, as Sorribes Tormo has won more matches against Bondar in their previous encounters, despite the crowd favouring the Hungarian [1]. Traditional bookmakers like Novibet currently list both players at identical 1.93 odds for the match winner, suggesting a near-even split that contrasts with the 57% implied probability on the on-chain market [9]. This divergence often signals that retail traders are overweighting Bondar’s recent form or home-court advantage in Romania, while ignoring the Spanish player’s superior historical record in this specific fixture.
Key catalysts for traders include the match start time of 12:00 UTC and any pre-match injury announcements that could trigger a walkover or forfeiture [4]. If the match is postponed, the market remains open and closes after the rescheduled fixture within two weeks, whereas a retirement during play resolves markets based on completed sets [2]. Traders should monitor live score feeds on Tennis.com or Sofascore for real-time updates on surface conditions and player fitness, as clay-court volatility in Iași can rapidly shift win probabilities once the first ball is struck [3].
Methodology
We track Pronóstico: Iasi Open: Anna Bondar vs Sara Sorribes Tormo across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.
Resolution & payout
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
FAQ
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- 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.
- 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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