Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
50% | 50% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
50% | 50% | 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 |
|---|---|
| ITF Castelo Branco: Goncalo Marques vs Joao Domingues | 50% |
| ITF Castelo Branco: Goncalo Marques vs Joao Domingues Set 1 O/U 8.5 | 50% |
| ITF Castelo Branco: Goncalo Marques vs Joao Domingues Match O/U 21.5 | 50% |
| ITF Castelo Branco: Goncalo Marques vs Joao Domingues Set 2 Winner | 50% |
| ITF Castelo Branco: Goncalo Marques vs Joao Domingues Total Sets: O/U 2.5 | 50% |
| ITF Castelo Branco: Goncalo Marques vs Joao Domingues Set 1 Winner | 50% |
| ITF Castelo Branco: Goncalo Marques vs Joao Domingues Set 2 O/U 8.5 | 50% |
| ITF Castelo Branco: Goncalo Marques vs Joao Domingues Match O/U 22.5 | 50% |
| ITF Castelo Branco: Goncalo Marques vs Joao Domingues Set 1 O/U 9.5 | 50% |
| ITF Castelo Branco: Goncalo Marques vs Joao Domingues Set Handicap +/-1.5 | 50% |
| ITF Castelo Branco: Goncalo Marques vs Joao Domingues Set 2 O/U 9.5 | 50% |
| ITF Castelo Branco: Goncalo Marques vs Joao Domingues Match O/U 23.5 | 50% |
| ITF Castelo Branco: Goncalo Marques vs Joao Domingues Set 1 O/U 10.5 | 50% |
| ITF Castelo Branco: Goncalo Marques vs Joao Domingues Set 2 O/U 10.5 | 50% |
| Completed Match | 0% |
Market context
Based on real-money crowd forecasting, itf castelo branco: goncalo marques vs joao domingues stands at 50% likelihood according to current market consensus. This market refers to the tennis match between Goncalo Marques and Joao Domingues in the ITF Men Castelo Branco, originally scheduled for July 15, 2026 at 5:30AM ET. This market w…
Methodology
This page reviews ITF Castelo Branco: Goncalo Marques vs Joao Domingues across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to PolyGram, which mirrors the Polymarket order book at 0% fees.
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
- 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 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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