Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Who Will Win) 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 |
|---|---|
| Mubadala Citi DC Open: Jessica Pegula vs Anna Kalinskaya | 100% |
| Completed Match | 100% |
| Mubadala Citi DC Open: Jessica Pegula vs Anna Kalinskaya Set 1 Winner | 100% |
| Mubadala Citi DC Open: Jessica Pegula vs Anna Kalinskaya Set 2 Winner | 100% |
| Mubadala Citi DC Open: Jessica Pegula vs Anna Kalinskaya Set 1 O/U 8.5 | 100% |
| Mubadala Citi DC Open: Jessica Pegula vs Anna Kalinskaya Set Handicap +/-1.5 | 100% |
| Mubadala Citi DC Open: Jessica Pegula vs Anna Kalinskaya Set 2 O/U 8.5 | 100% |
| Mubadala Citi DC Open: Jessica Pegula vs Anna Kalinskaya Set 2 O/U 9.5 | 100% |
| Mubadala Citi DC Open: Jessica Pegula vs Anna Kalinskaya Set 2 O/U 10.5 | 100% |
| Mubadala Citi DC Open: Jessica Pegula vs Anna Kalinskaya Total Sets: O/U 2.5 | 0% |
| Mubadala Citi DC Open: Jessica Pegula vs Anna Kalinskaya Match O/U 21.5 | 0% |
| Mubadala Citi DC Open: Jessica Pegula vs Anna Kalinskaya Set 1 O/U 9.5 | 0% |
| Mubadala Citi DC Open: Jessica Pegula vs Anna Kalinskaya Set Handicap +/-1.5 | 0% |
| Mubadala Citi DC Open: Jessica Pegula vs Anna Kalinskaya Match O/U 22.5 | 0% |
| Mubadala Citi DC Open: Jessica Pegula vs Anna Kalinskaya Set 1 O/U 10.5 | 0% |
| Mubadala Citi DC Open: Jessica Pegula vs Anna Kalinskaya Match O/U 23.5 | 0% |
Market context
Jessica Pegula’s quarter-final against Anna Kalinskaya in Washington has been priced as a near-certainty for Pegula, with the market at **100% YES**. In handicapper terms, that leaves the favourite fully embraced and the underdog effectively ignored, so the only real “value” case is a contrarian one built around volatility rather than a clean upset price.
That caution matters because this matchup has been stubbornly close in the past. WTA notes say Pegula and Kalinskaya have met five times at tour level and *all five matches went the distance*, which is exactly the sort of head-to-head profile that keeps a dominant market line vulnerable to one tight set turning into a live underdog position.[2] Pegula still carries the stronger baseline case: Reuters reported she reached the quarter-finals with a three-set win over Magdalena Frech, while the WTA match notes list her as the No. 1 seed and give her a 4-1 lead in the rivalry.[13][14]
For traders, the key catalysts are not abstract form trends but whether the match is completed and how the scheduling unfolds. The WTA pegged the contest for Friday’s quarter-finals in Washington, and the market’s own rules mean cancellation, a tie, or a delay beyond seven days would push resolution to 50-50 rather than a normal winner call.[14] Live scoreboards indicate the match is underway, so the main watch items are interruption, retirement, or any abnormal stoppage rather than a pre-match withdrawal narrative.[1][8]
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 Who Will Win, which mirrors the Polymarket order book directly.
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
- 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.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Who Will Win trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
- 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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