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% |
| Los Cabos Open: Coleman Wong vs Arthur Gea Set 2 O/U 8.5 | 100% |
| Los Cabos Open: Coleman Wong vs Arthur Gea Set 1 O/U 8.5 | 100% |
| Los Cabos Open: Coleman Wong vs Arthur Gea Match O/U 21.5 | 100% |
| Los Cabos Open: Coleman Wong vs Arthur Gea Set 1 O/U 9.5 | 100% |
| Los Cabos Open: Coleman Wong vs Arthur Gea Set Handicap +/-1.5 | 100% |
| Los Cabos Open: Coleman Wong vs Arthur Gea Set 1 O/U 10.5 | 100% |
| Los Cabos Open: Coleman Wong vs Arthur Gea | 0% |
| Los Cabos Open: Coleman Wong vs Arthur Gea Set 1 Winner | 0% |
| Los Cabos Open: Coleman Wong vs Arthur Gea Total Sets: O/U 2.5 | 0% |
| Los Cabos Open: Coleman Wong vs Arthur Gea Set 2 Winner | 0% |
| Los Cabos Open: Coleman Wong vs Arthur Gea Set 2 O/U 9.5 | 0% |
| Los Cabos Open: Coleman Wong vs Arthur Gea Set Handicap +/-1.5 | 0% |
| Los Cabos Open: Coleman Wong vs Arthur Gea Match O/U 22.5 | 0% |
| Los Cabos Open: Coleman Wong vs Arthur Gea Set 2 O/U 10.5 | 0% |
| Los Cabos Open: Coleman Wong vs Arthur Gea Match O/U 23.5 | 0% |
Market context
Polymarket is pricing this contract at **28% YES** on USDC collateral, so the market is currently treating Coleman Wong as the underdog against Arthur Gea in a Polygon-settled, conditional-token position. The payout is binary if one player advances, but it can still fall back to **50-50** if the match is never played, ends level, or is delayed beyond the seven-day settlement rule in the market terms.
The live tennis context points to a fairly tight, low-profile ATP semi-final rather than a marquee mismatch. Available match listings show Wong around **ATP No. 108** and Gea around **No. 127**, with both players right-handed and no recorded head-to-head, which limits the value of direct matchup history.[1][7][14] Recent score aggregators also show both players arriving with broadly similar 2026 hard-court form, while some sites have Gea’s recent run looking slightly stronger and Wong’s overall hard-court results more established.[3][7][9][18]
For traders, the key catalysts are practical rather than narrative: the official order of play, any delay to the semi-final slot, and whether either player withdraws before first ball. Because this market only resolves on an actual advance, a retirement after the match begins still matters, while a postponement past the settlement window or cancellation pushes the contract towards the built-in tie outcome. The main reference point remains the tournament feed and live match status; markets around ATP events can move quickly once a confirmed start time, court assignment, or late fitness update appears.[1][11][13]
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 PolyGram, which mirrors the Polymarket order book directly.
Resolution & payout
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
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 PolyGram. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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.
- 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.
- 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 Los Cabos Open: Coleman Wong vs Arthur Gea on PolyGram
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