Sion: Gerard Campana Lee vs Alex Marti Pujolras

Platform comparison

Market context

Gerard Campana Lee and Alex Marti Pujolras are scheduled to meet in Sion on 18 August 2026, with the winner advancing in the tournament bracket. The Polymarket contract currently prices YES (Campana Lee victory) at 0%, reflecting either extreme confidence in Pujolras or minimal liquidity and trading activity on this particular match. Settlement occurs by 25 August 2026 at 12:30 UTC, allowing a one-week window for the match to conclude; any cancellation, tie, or delay beyond that threshold triggers a 50-50 split resolution.

Sion tournaments typically feature lower-ranked ATP or Challenger circuit players, making historical precedent difficult to establish from major tour data. Matches between players ranked outside the top 200 show high variance in outcomes, with seeding and recent form often diverging sharply from pre-match odds. The 0% probability on Campana Lee suggests either that Pujolras holds a substantial ranking advantage or that the market has received minimal attention and order flow, leaving the contract thinly priced on Polygon.

Traders should monitor official ATP or Challenger draw confirmations as the tournament date approaches, particularly any late withdrawals or injury announcements that could trigger the cancellation clause. Recent tournament schedules and player entry lists typically appear 7–10 days before competition begins. On-chain liquidity may shift once the match draws closer and conditional token holders begin repositioning; current USDC depth on this contract remains a key variable for execution costs on either side.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

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

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.

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.

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.