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 | Open the market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open the market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open the market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open the market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open the market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Completed Match | 100% |
| Cancun: Alan Magadan vs Coleman Wong Match O/U 21.5 | 100% |
| Cancun: Alan Magadan vs Coleman Wong Total Sets: O/U 2.5 | 100% |
| Cancun: Alan Magadan vs Coleman Wong Set 1 O/U 8.5 | 100% |
| Cancun: Alan Magadan vs Coleman Wong Set 2 Winner | 100% |
| Cancun: Alan Magadan vs Coleman Wong Match O/U 22.5 | 100% |
| Cancun: Alan Magadan vs Coleman Wong Set 1 O/U 9.5 | 100% |
| Cancun: Alan Magadan vs Coleman Wong Match O/U 23.5 | 100% |
| Cancun: Alan Magadan vs Coleman Wong | 0% |
| Cancun: Alan Magadan vs Coleman Wong Set 2 O/U 8.5 | 0% |
| Cancun: Alan Magadan vs Coleman Wong Set 1 Winner | 0% |
| Cancun: Alan Magadan vs Coleman Wong Set Handicap +/-1.5 | 0% |
| Cancun: Alan Magadan vs Coleman Wong Set 2 O/U 9.5 | 0% |
| Cancun: Alan Magadan vs Coleman Wong Set Handicap +/-1.5 | 0% |
| Cancun: Alan Magadan vs Coleman Wong Set 2 O/U 10.5 | 0% |
| Cancun: Alan Magadan vs Coleman Wong Set 1 O/U 10.5 | 0% |
Market context
Alan Magadan and Coleman Wong are scheduled to meet in a professional tennis match in Cancun on 20 August 2026. The Polymarket contract currently prices Magadan's advancement at 0%, reflecting either extreme confidence in Wong or insufficient liquidity to establish a meaningful market. Settlement occurs by 27 August 2026, allowing a seven-day window for completion; any cancellation, tie, or unresolved delay beyond that period triggers a 50-50 split of the conditional USDC pool on Polygon.
Magadan, an American player ranked outside the top 200, has limited ATP-level match history against established opponents. Wong, also American, operates in similar ranking territory with sporadic tournament appearances. The 0% pricing on Magadan suggests market participants either possess concrete information about Wong's superiority or have simply not committed capital to this lower-tier fixture. Historical precedent from comparable Challenger-level matches shows that extreme probability skew often reflects information asymmetry rather than genuine certainty—injuries, late withdrawals, or surface-specific form can shift outcomes dramatically in matches between players of comparable calibre.
Traders should monitor official ATP Challenger tour announcements for any changes to the Cancun draw, player withdrawals, or scheduling adjustments. Recent tournament cancellations and rescheduling have become more common across lower-tier circuits. The settlement window's seven-day buffer provides some protection against minor delays, but any significant disruption would trigger the 50-50 resolution clause. Current liquidity constraints appear to be suppressing price discovery; meaningful YES-side positions could shift the contract substantially if new information about either player's form or availability emerges before the match date.
Methodology
We track Cancun: Alan Magadan vs Coleman Wong 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
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
- 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 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.
Trade Cancun: Alan Magadan vs Coleman Wong on PolyGram
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