National Bank Open: Zachary Svajda vs Arthur Fils

Platform comparison

Market context

Arthur Fils’s second-round meeting with Zachary Svajda in Montréal is priced very differently across venues: the prediction market is showing **0% YES**, while tennis models and bookmaker-style previews overwhelmingly side with Fils. Tennis Tonic lists Fils at **1.31** to win, and String Tension’s Elo model gives him **76.9%** with implied odds of **-333**; both point to a strong favourite, which makes a zero-per-cent market price look more like an illiquid or stale contract than a genuine read on match quality.[14][3]

That gap is easier to understand when you compare the players’ profiles. The pair have **no previous ATP head-to-head**, so traders are leaning on broader form rather than direct history.[1][11][12] Fils is the higher-ranked player, sitting around **ATP No. 24** versus Svajda at **No. 87**, and his 2026 hard-court record is stronger as well.[8][2][3] Comparable markets on unplayed first-time meetings usually move off an extreme only when line-ups are confirmed and the draw is settled; until then, the direction tends to follow ranking, surface form and any late injury news rather than the absence of prior meetings alone.[3][4]

The key catalysts are straightforward: confirmation that the match is actually played, the final order of play, and any withdrawal or retirement information from Montréal. Tennis.com’s match listing places the event in the National Bank Open and identifies it as a round-of-32/second-round contest, which means any schedule change, medical timeout, or walkover risk would matter more to settlement than the pre-match price itself.[8][12] Because the market resolves to 50-50 if the match is not played or is delayed too long, traders will be watching the tournament’s official updates and live-score feeds closely; if Fils is confirmed in the draw and on court, the cross-platform pricing still favours him heavily.[5][6]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews National Bank Open: Zachary Svajda vs Arthur Fils across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Kalshi vs Polymarket, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

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 vs Polymarket. 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.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi vs Polymarket trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.