Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Is Kalshi Legit) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Completed Match | 100% |
| Sion: Gerard Campana Lee vs Alex Marti Pujolras Match O/U 21.5 | 100% |
| Sion: Gerard Campana Lee vs Alex Marti Pujolras Set 1 O/U 8.5 | 100% |
| Sion: Gerard Campana Lee vs Alex Marti Pujolras Set 2 O/U 8.5 | 100% |
| Sion: Gerard Campana Lee vs Alex Marti Pujolras Set Handicap +/-1.5 | 100% |
| Sion: Gerard Campana Lee vs Alex Marti Pujolras Set 1 O/U 9.5 | 100% |
| Sion: Gerard Campana Lee vs Alex Marti Pujolras Set 1 O/U 10.5 | 100% |
| Sion: Gerard Campana Lee vs Alex Marti Pujolras | 0% |
| Sion: Gerard Campana Lee vs Alex Marti Pujolras Set 2 Winner | 0% |
| Sion: Gerard Campana Lee vs Alex Marti Pujolras Set Handicap +/-1.5 | 0% |
| Sion: Gerard Campana Lee vs Alex Marti Pujolras Set 1 Winner | 0% |
| Sion: Gerard Campana Lee vs Alex Marti Pujolras Total Sets: O/U 2.5 | 0% |
| Sion: Gerard Campana Lee vs Alex Marti Pujolras Match O/U 22.5 | 0% |
| Sion: Gerard Campana Lee vs Alex Marti Pujolras Set 2 O/U 9.5 | 0% |
| Sion: Gerard Campana Lee vs Alex Marti Pujolras Match O/U 23.5 | 0% |
| Sion: Gerard Campana Lee vs Alex Marti Pujolras Set 2 O/U 10.5 | 0% |
Market context
Gerard Campana Lee and Alex Marti Pujolras are scheduled to compete in a tennis match at Sion on 18 August 2026, with the contest originally set for 8:30 AM ET. The market's 0% implied probability for Lee reflects either sparse liquidity, late-stage settlement approaching the 25 August deadline, or strong consensus backing Pujolras. Settlement occurs 2026-08-25T12:30:42Z, providing a seven-day buffer beyond the scheduled date; matches delayed beyond that window without completion trigger a 50-50 resolution, whilst cancellations or ties also resolve evenly.
Sion tournaments on the men's professional circuit typically draw ATP Challenger or ITF-level competitors. Historical precedent shows that matches at this tier rarely cancel outright, though weather delays are common in Swiss venues during August. The current 0% reading suggests either Pujolras holds a substantial ranking or form advantage, or the market has received late information regarding Lee's availability or fitness. Comparable Challenger-level markets often show asymmetric probabilities only when one player carries recent tournament wins or a significant seeding differential.
Traders should monitor official ATP or ITF draw confirmations and any injury bulletins through late August, particularly given the settlement window's proximity to the event date. Swiss weather forecasts for mid-August will matter; rain delays that extend beyond 7 days without a winner trigger the 50-50 clause. Under German GlüStV and US CFTC frameworks, this market remains accessible to most traders without KYC up to $1,500 notional exposure, though regulatory reach varies by jurisdiction. Confirmation of both players' participation status should be verified against official tournament websites before settlement.
Methodology
This overview of Sion: Gerard Campana Lee vs Alex Marti Pujolras reviews the four comparable platforms from a regulatory perspective: which is accessible in your jurisdiction, where KYC kicks in, how the platform is classified by your country of residence. Live probability is the Polymarket mid; comparison columns show regulatory status, KYC thresholds and settlement options for each platform.
Resolution & payout
On Polymarket, resolution runs on-chain via UMA Optimistic Oracle. USDC payout is instant and automatic, with no KYC. Tax treatment depends on your jurisdiction — in the US, gains are usually ordinary income; in the UK, often capital gains. Consult a tax professional for your situation.
FAQ
- Is Polymarket legal in my country?
- Polymarket is geo-blocked in the US/UK/EU. Actual usage via the Polymarket interface is not possible there. The legal status itself varies — many countries treat prediction markets as a gray area. Is Kalshi Legit has a different geo footprint.
- Do I need to KYC for Is Kalshi Legit?
- Not for lifetime trading volume under $1,500. Above that threshold, a quick KYC flow kicks in — ID, selfie, approximately 5-10 minutes. The threshold matches FATF travel standards for unregulated crypto platforms.
- Can I trade anonymously?
- Pseudonymously, yes — up to the KYC threshold. Is Kalshi Legit stores an email address and wallet addresses rather than a legal name. Over $1,500 lifetime volume triggers KYC, after which identity is no longer anonymous.
- Are prediction markets gambling?
- Legally unclear in most jurisdictions. Some interpretations classify them as wagering (gambling regulation applies), others as derivatives (financial regulation applies). There's no global precedent specifically for on-chain prediction markets.
- Is there a withdrawal cap?
- No platform-side cap. You can withdraw any amount provided KYC is complete. SEPA bank withdrawals over €15,000 trigger additional anti-money-laundering checks (statutory obligation for all platforms).
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