Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket Scam? Pick polygram.ink |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Polymarket Scam? → |
Polymarket polymarket.com |
0% | 100% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Polymarket Scam? → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Polymarket Scam? → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Polymarket Scam? → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Polymarket Scam? → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on Polymarket Scam?.
Active sub-markets
| Wimbledon, Qualification ATP: Keegan Smith vs Moez Echargui | 0% Keegan Smith | 100% Moez Echargui |
| Completed Match | 100% YES | 0% NO |
| Wimbledon, Qualification ATP: Keegan Smith vs Moez Echargui Set 1 O/U 8.5 | 100% Over | 0% Under |
| Wimbledon, Qualification ATP: Keegan Smith vs Moez Echargui Set Handicap +/-1.5 | 0% Smith | 100% Echargui |
| Wimbledon, Qualification ATP: Keegan Smith vs Moez Echargui Set 1 O/U 9.5 | 100% Over | 0% Under |
| Wimbledon, Qualification ATP: Keegan Smith vs Moez Echargui Set Handicap +/-1.5 | 0% Echargui | 100% Smith |
Market context
On the court at Wimbledon’s qualifying round, Keegan Smith faces Moez Echargui in a second career meeting between the two, scheduled for Tuesday at 1:00 PM on Court 13, yet Polymarket prices Smith’s chance of advancing at 0% YES, a stark divergence from Sportsbet’s 1.33 odds favouring him[1][3]. This near-zero pricing mirrors past qualification markets where a player withdrew before the first ball was struck, triggering fair-price settlements rather than a binary loss[2]. In such cases, on-chain mechanics on Polygon using USDC and conditional tokens automatically resolve unplayed matches to 50-50, a rule that traders must weigh when the crowd-implied probability collapses despite live odds suggesting a competitive contest[2].
Traders should monitor official ATP withdrawal announcements and the start-time signal—specifically whether a ball is played—to confirm the match has begun, as any pre-match cancellation due to injury or walkover will reset the contract to fair price[2]. Recent coverage from Tennis.com confirms the match is listed as Qualifying Round 2, with live scoring pending, meaning the outcome hinges on real-time entry rather than historical form[6]. The key catalyst is the 6:00 AM ET start window; if delayed beyond seven days without a winner, the market resolves to 50-50, a dependency that makes timing critical for conditional token holders[2].
Methodology
We track Wimbledon, Qualification ATP: Keegan Smith vs Moez Echargui on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.
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 Scam? is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.
- 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.
- 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.
- 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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