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 |
|---|---|
| Rome: Sofya Lansere vs Elena Malygina | 100% |
| Completed Match | 100% |
| Rome: Sofya Lansere vs Elena Malygina Set 1 O/U 8.5 | 100% |
| Rome: Sofya Lansere vs Elena Malygina Match O/U 21.5 | 100% |
| Rome: Sofya Lansere vs Elena Malygina Total Sets: O/U 2.5 | 100% |
| Rome: Sofya Lansere vs Elena Malygina Set 1 O/U 9.5 | 100% |
| Rome: Sofya Lansere vs Elena Malygina Set 2 Winner | 100% |
| Rome: Sofya Lansere vs Elena Malygina Match O/U 22.5 | 100% |
| Rome: Sofya Lansere vs Elena Malygina Match O/U 23.5 | 100% |
| Rome: Sofya Lansere vs Elena Malygina Set 1 Winner | 0% |
| Rome: Sofya Lansere vs Elena Malygina Set Handicap +/-1.5 | 0% |
| Rome: Sofya Lansere vs Elena Malygina Set 2 O/U 8.5 | 0% |
| Rome: Sofya Lansere vs Elena Malygina Set Handicap +/-1.5 | 0% |
| Rome: Sofya Lansere vs Elena Malygina Set 1 O/U 10.5 | 0% |
| Rome: Sofya Lansere vs Elena Malygina Set 2 O/U 9.5 | 0% |
| Rome: Sofya Lansere vs Elena Malygina Set 2 O/U 10.5 | 0% |
Market context
Sofya Lansere and Elena Malygina are scheduled to meet in a first-round match at the Rome tournament on 13 July 2026. The Polymarket contract currently reflects 100% implied probability for Lansere's advancement, meaning traders have priced in her victory with absolute certainty. This extreme pricing sits on Polygon's conditional token architecture, where USDC stakes are locked into either outcome until settlement on 20 July. The market's confidence in Lansere suggests either a significant ranking or seeding advantage, or that one player carries injury concerns substantial enough to eliminate meaningful two-way risk from traders' perspective.
Historical precedent matters here: first-round matches at established clay-court tournaments rarely trade at such extremes unless there's a clear disparity in ranking, recent form, or confirmed fitness issues affecting one competitor. When Polymarket prices a WTA match at 100% for one player, it typically reflects either a top-50 player facing an unranked qualifier, or a situation where one player has publicly withdrawn or announced injury. The seven-day grace period in the settlement terms—allowing for delays without triggering a 50-50 resolution—provides some buffer, but the market's current pricing leaves no room for competitive uncertainty.
Traders should monitor official tournament draws and any injury announcements from either player's camp through early July. Withdrawal news, late schedule changes, or fitness updates released within 48 hours of the match could trigger repricing, though the current 100% reading suggests the market has already absorbed available information. Court surface conditions and weather forecasts closer to the date may affect match duration but are unlikely to shift outcome probabilities at this pricing level.
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
Resolution & payout
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
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 Kalshi UK. 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'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 Rome: Sofya Lansere vs Elena Malygina on Kalshi UK
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