Istanbul: Andrej Nedic vs David Jorda Sanchis

Platform comparison

Active sub-markets

Market context

Andrej Nedic and David Jorda Sanchis are scheduled to meet in a tennis match in Istanbul on 23 May 2026, with the contest originally timetabled for 07:00 ET. The 0% implied probability across major platforms suggests either extremely limited liquidity or a technical listing issue, as professional tennis matches between ranked players rarely trade at such extremes unless one competitor has withdrawn or the fixture has been formally cancelled. Settlement occurs if either player advances by 30 May 2026; any cancellation, tie, or delay beyond seven days from the scheduled date triggers a 50-50 resolution.

Comparable ATP Challenger and ITF matches involving lower-ranked European players typically show modest trading volumes on Kalshi and Polymarket, with spreads widening considerably when fixtures fall outside the ATP 500 or Masters 1000 calendar. Betfair and Smarkets historically maintain tighter decimal-odds pricing on such matches due to higher retail participation, whilst Kalshi's binary YES/NO structure can produce liquidity gaps when American traders show limited interest in regional European clay-court events. The settlement window extending to 30 May provides a seven-day buffer for rescheduling, a common protection on Polymarket that differs from Kalshi's stricter same-day resolution protocols.

Traders should monitor official ATP or ITF announcements regarding draw confirmations, player withdrawals, and weather delays in Istanbul. Recent tournament scheduling disruptions in May 2025 saw several Eastern European fixtures postponed by 48–72 hours. KYC requirements vary significantly: Kalshi enforces US residency checks, whilst Polymarket and Betfair operate with lighter verification in most EU jurisdictions, affecting which platforms can actually settle this market for different user bases.

Methodology

This page compares Istanbul: Andrej Nedic vs David Jorda Sanchis 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 PolyGram, which mirrors the Polymarket order book at 0% fees.

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

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.

What does it cost to trade on PolyGram?

Zero. PolyGram 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, PolyGram triggers a quick verification flow that finishes in minutes.