Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
68% | 32% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
68% | 32% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open the market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open the market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open the market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open the market → |
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 | 59% |
| Iasi Open: Anna Bondar vs Sara Sorribes Tormo Set 1 Winner | 56% |
| Iasi Open: Anna Bondar vs Sara Sorribes Tormo Set 2 Winner | 55% |
| 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 Set Handicap +/-1.5 | 39% |
| Iasi Open: Anna Bondar vs Sara Sorribes Tormo Total Sets: O/U 2.5 | 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 first round of the 2026 Iasi Open on Romanian clay, with the match scheduled to start at 3:00 AM ET today. On Polymarket, the contract for Bondar advancing is priced at 57% YES, implying a slight edge over her opponent despite traditional bookmakers listing both players at identical $1.90 odds [1][2]. This on-chain price reflects a divergence from the 50% probability assigned by predictive analytics models, suggesting traders are weighting Bondar’s recent form or surface suitability more heavily than historical head-to-head data, where Sorribes Tormo holds the advantage [2][3].
Historical precedents in WTA clay-court events often show early-round probabilities shifting rapidly once players confirm their physical readiness, particularly when odds are evenly matched. In similar 2024 and 2025 WTA 250 tournaments, contracts priced between 55–60% for one player frequently resolved to the opponent when the underdog won the first set, indicating that the current 57% figure may be vulnerable to early volatility [1][2]. The conditional tokens on Polygon, settled in USDC, allow traders to hedge against this specific set-level risk, mirroring how institutional desks manage exposure in live tennis markets.
Traders should monitor the official start time confirmation and any pre-match injury reports, as delays beyond seven days trigger a 50-50 settlement under the market rules [1]. Sorribes Tormo’s recent match against Ajla Tomljanovic on 28 April 2026, which she won 6-4, 2-6, 6-3, suggests she is in competitive form, while Bondar’s lack of recent high-profile clay results remains a key dependency [8]. Any announcement regarding weather conditions at Baza Sportiva Ciric could also impact the settlement window, given the tournament’s outdoor venue.
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to PolyGram, which mirrors the Polymarket order book directly.
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
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is PolyGram. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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.
- 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.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
Trade Iasi Open: Anna Bondar vs Sara Sorribes Tormo on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
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