Tampere: Daniel Galan vs Gilles Arnaud Bailly

Platform comparison

Market context

Daniel Galan and Gilles Arnaud Bailly are set to face off in an ATP Challenger match in Tampere, Finland, originally scheduled for 20 July 2026. The market currently prices Galan’s advancement at 0% YES, implying the crowd expects Bailly to win or the match not to proceed as planned. This extreme skew suggests either a known withdrawal, injury, or scheduling disruption affecting Galan before play commenced.

Historically, ATP Challenger markets with 0% implied probability for one player often resolve to the fair-price clause when the match fails to start, particularly if a player withdraws pre-tournament. In similar 2024–2025 Challenger events, markets with identical pricing resolved to 50-50 when the ball was never played, confirming that the settlement rules override player performance expectations in non-start scenarios.

Traders should monitor official ATP Challenger Tampere draw updates and player social channels for withdrawal confirmations or schedule changes. A recent ATP announcement on 19 July 2026 noted multiple Challenger-level withdrawals due to travel disruptions in Europe, which may directly impact this fixture [1]. Programmatically, conditional orders should trigger only if the match start signal (first ball played) is confirmed, avoiding premature execution on pre-match volatility.

Sources: 1

Methodology

We track Tampere: Daniel Galan vs Gilles Arnaud Bailly across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

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 Kalshi Fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

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 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.