Mallorca Championships: Adam Walton vs Nick Kyrgios

Platform comparison

Active sub-markets

Market context

Adam Walton’s Mallorca first-round meeting with Nick Kyrgios was scheduled for 22 June on Centre Court, with live listings showing a 15:30 UTC start, and the ATP has already published highlights of Walton beating Kyrgios in the match.[3][5][6] That makes the market’s **100% yes** crowd price easy to read as a near-certain outcome on the tape rather than a narrow pre-match coin-flip: the contest has evidently been played and the available result is Walton progressing.[3] Sports previews published before play had Kyrgios as the favourite, which is a useful reminder that prediction-market prices can move very differently once the actual result is known.[1][2]

For comparison across venues, Polymarket typically shows a pure implied probability, while Betfair and Smarkets tend to present decimal odds and take commission on winning bets; those formats are not directly comparable without converting the prices and adjusting for fees. In practice, the main differences on a tennis market like this are not just price presentation but access: regulated exchanges and sportsbooks often require full KYC and jurisdiction checks, whereas prediction platforms can have different onboarding and liquidity dynamics. Here, the key read-through for traders is whether the market is still awaiting formal settlement or whether the ATP result has already removed any ambiguity around advancement.[3][5]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We read Mallorca Championships: Adam Walton vs Nick Kyrgios from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live quote comes directly from the Polygon order book; the other three are listed with their platform attributes — fees, KYC, settlement currency, payment options — because a 1:1 contract comparison without API access would be guesswork.

Resolution & payout

Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.

Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.

FAQ

Is this market available outside the US?

Kalshi Alternative UK is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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?

Not under $1,500 of lifetime trading volume. Above that threshold, Kalshi Alternative UK triggers a quick verification flow that finishes in minutes.