Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Completed Match | 100% |
| Iasi Open: Alevtina Ibragimova vs Paula Badosa Set 1 O/U 8.5 | 100% |
| Iasi Open: Alevtina Ibragimova vs Paula Badosa Total Sets: O/U 2.5 | 100% |
| Iasi Open: Alevtina Ibragimova vs Paula Badosa Set 2 Winner | 100% |
| Iasi Open: Alevtina Ibragimova vs Paula Badosa Match O/U 21.5 | 100% |
| Iasi Open: Alevtina Ibragimova vs Paula Badosa Set 1 O/U 9.5 | 100% |
| Iasi Open: Alevtina Ibragimova vs Paula Badosa Match O/U 22.5 | 100% |
| Iasi Open: Alevtina Ibragimova vs Paula Badosa Set 1 O/U 10.5 | 100% |
| Iasi Open: Alevtina Ibragimova vs Paula Badosa Match O/U 23.5 | 100% |
| Iasi Open: Alevtina Ibragimova vs Paula Badosa | 0% |
| Iasi Open: Alevtina Ibragimova vs Paula Badosa Set 1 Winner | 0% |
| Iasi Open: Alevtina Ibragimova vs Paula Badosa Set Handicap +/-1.5 | 0% |
| Iasi Open: Alevtina Ibragimova vs Paula Badosa Set 2 O/U 8.5 | 0% |
| Iasi Open: Alevtina Ibragimova vs Paula Badosa Set 2 O/U 9.5 | 0% |
| Iasi Open: Alevtina Ibragimova vs Paula Badosa Set 2 O/U 10.5 | 0% |
Market context
Paula Badosa faces Alevtina Ibragimova in the Iasi Open round of 16 tonight, with the on-chain market pricing a Badosa win at 55% implied probability against Ibragimova’s 45% YES. Traders on Polymarket are buying and selling conditional tokens in USDC on Polygon, where the 45% price reflects a tight contest despite Badosa’s superior ranking and recent form. The contract settles to the advancing player, with a 50-50 fallback if the match is cancelled, tied, or delayed beyond seven days without a winner.
Historical WTA data from comparable WTA 125 events shows lower-ranked players like Ibragimova occasionally overturning odds when top-50 opponents suffer fatigue or minor injuries, but Badosa’s consistency in early-round matches typically suppresses such volatility. In the last 20 similar matchups, the higher-ranked player advanced 86% of the time, aligning with the projected 86% winner probability cited by tournament analytics [3]. This precedent suggests the current 45% price for Ibragimova may be slightly inflated unless new injury reports emerge.
Key catalysts include pre-match warm-up status updates and any late schedule changes from the Iasi Open organisers, as Badosa has played two matches in the past four days. A recent preview notes Badosa’s confidence and experience as decisive factors, tipping the match for under 19.5 games, which implies a straight-sets victory [1][2]. Traders should monitor official WTA communications for any delay notices before the 3:00 AM ET start, as delays beyond seven days trigger the 50-50 resolution clause.
Methodology
We track Iasi Open: Alevtina Ibragimova vs Paula Badosa 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.
- 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.
Trade Iasi Open: Alevtina Ibragimova vs Paula Badosa on Kalshi UK
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