Canadian Open: Juan Manuel Cerundolo vs Hamad Medjedovic

Platform comparison

Market context

Juan Manuel Cerundolo’s match with Hamad Medjedovic in Montreal is priced by the crowd as a near-certainty for Medjedovic, which is notable because the market resolves on who *advances*, not on pre-match win probability. The underlying tennis data supports that direction: Medjedovic leads the head-to-head 2-0, with both previous meetings coming at Roland Garros on clay in 2023 and 2025, and multiple live score services list him ahead in the current draw context for the National Bank Open.[2][3][7][14]

For comparison, this is exactly where prediction markets and sportsbooks can diverge in presentation rather than substance. Polymarket-style markets quote an implied probability, while Betfair, Smarkets and similar books express the same view in decimal odds, so a market showing 100% YES is not directly comparable to a 1.01 price once fees and spread are included. In practice, that makes the effective edge narrower on fee-heavy venues, while KYC and regional access can also affect who can participate; Robinhood’s event page shows the market is active around the clock except for a maintenance window, but platform access rules differ materially across venues.[19]

The main catalysts are straightforward: confirmation that the match is played as scheduled, any late court assignment or weather-related delay, and the outcome of the first few games if one player starts poorly or retires. The market has a settlement backstop if the match is not played, ends in a tie, or is delayed more than seven days without a winner, so traders will be watching official tournament updates and live order flow rather than just pre-match previews. Tennis Channel’s match listing and projection model have Medjedovic favoured, which is consistent with the crowd pricing even before any on-court news lands.[14][15]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We read Canadian Open: Juan Manuel Cerundolo vs Hamad Medjedovic 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 mid is the canonical probability; the side-by-side columns benchmark fees, KYC, settlement currency and deposit rails so you can choose the venue that fits your jurisdiction and trade size.

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). On-chain settlement clears in minutes — the fastest payout path of the four.

FAQ

Polymarket vs Kalshi — which is better?

Depends on your location. Kalshi is CFTC-regulated, US-only with full KYC. Polymarket is global, on-chain, no KYC up to $1,500. Polymarket has ~10x higher liquidity but higher regulatory risk.

What does Polymarket cost vs Kalshi?

Polymarket: 0% fees, only Polygon network costs (~$0.01/trade). Kalshi: up to 7% per trade plus spread. For high-frequency traders, Polymarket is dramatically cheaper.

Is Betfair a Polymarket alternative?

Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.

What about Smarkets as an alternative?

Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.

Which platform is accessible globally?

Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Kalshi Alternative has a different geo footprint and routes to Polymarket's order book at 0% fees.