Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Roehampton: Filip Peliwo vs Nicolas Tepmahc | 100% |
| Completed Match | 100% |
Market context
A qualifying-round tennis match between Filip Peliwo and Nicolas Tepmahc is scheduled for 18 August 2026 at Roehampton in London. The current crowd-implied probability stands at 100% for Peliwo's advancement, suggesting near-certain consensus on the outcome. Settlement occurs by 25 August 2026, allowing a one-week window for match completion or rescheduling before resolution triggers.
The 100% reading warrants scrutiny against comparable qualifying fixtures at Roehampton and other grass-court preliminaries. Qualifying matches at established venues like Roehampton historically show wider probability distributions—typically 55–75% for favoured players—reflecting genuine uncertainty in lower-ranked matchups. A 100% crowd probability is unusual absent public information about opponent withdrawal, injury announcement, or significant ranking disparity. Historical precedent suggests such extreme readings often compress toward 70–85% once sportsbooks publish lines, indicating either incomplete market information or genuine asymmetry in player capability that has not yet surfaced in public discourse.
Traders should monitor official tournament draw confirmations and any player injury bulletins through the ATP and WTA circuits in early August. Grass-court preparation schedules and recent qualifying results from warm-up events will clarify form trajectories. The settlement window's seven-day extension clause creates material risk if weather or scheduling disruptions occur; delayed matches beyond 25 August without completion trigger 50-50 resolution. Current sportsbook lines, once published closer to the event, will provide the first real cross-market calibration against the prediction market's extreme reading.
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
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
- 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 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 Roehampton: Filip Peliwo vs Nicolas Tepmahc on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
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