Mallorca Championships: Jan-Lennard Struff vs Martin Landaluce

Platform comparison

Active sub-markets

Market context

Jan-Lennard Struff is due to play Martin Landaluce in the first round of the Mallorca Championships, an ATP 250 grass-court event, with the match listed for 22 June in Mallorca. The market’s 0% YES price on Polymarket is far below the pre-match tone elsewhere: Tennis Tonic opened Landaluce around 1.615 decimal odds versus Struff at 2.3, which implies roughly a 62%–38% split before fees, while other previews also leaned to Landaluce. [1][2][8]

For platform comparison, that gap matters because Polymarket shows crowd-implied probability directly, whereas Betfair, Smarkets and most sportsbooks show decimal odds that need converting to implied probability and then adjusted for commission or margin. In practice, a low Polymarket YES price can reflect both a real view on the match and thin liquidity, while exchange-style prices on Betfair or Smarkets are closer to a tradable consensus but still depend on whether the account can be opened, verified and funded in the relevant jurisdiction. [2][5]

The main catalysts are straightforward: whether the match starts, whether it is completed, and whether any scheduling change pushes it beyond the market’s seven-day settlement window, in which case it resolves 50-50 under the stated rules. Live score listings and sportsbook start times suggest the tie was intended for the day session, but once a first-round match has not yet produced a result, late withdrawals, rain delays or a walkover become the key binary drivers for settlement rather than pre-match ranking narratives. [3][5][6]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares Mallorca Championships: Jan-Lennard Struff vs Martin Landaluce specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. Live odds come from the Polymarket order book; the other venues' contract details are maintained manually because their APIs aren't directly comparable. Every CTA routes to Kalshi Alternative UK, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). Kalshi Alternative UK routes every trade directly into Polymarket's on-chain settlement, which is why payouts land fastest.

FAQ

Where can I trade this market with the lowest fees?

On Kalshi Alternative UK, which mirrors the Polymarket order book at 0% fees. 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 does it cost to trade on Kalshi Alternative UK?

Zero. Kalshi Alternative UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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.