Canadian Open: Jaume Munar vs Rinky Hijikata

Platform comparison

Market context

Jaume Munar is due to meet Rinky Hijikata in the Canadian Open, and the market’s 92% crowd-implied price is much firmer than most external tennis books. Recent sportsbook screens put Munar around **1.70-1.72** in decimal terms, which translates to roughly **58-59%** before margin, while several model-based previews cluster nearer **55-57%** for Munar, so the prediction market is pricing a materially stronger favourite than the broader betting consensus[2][3][11][16]. On Polymarket, that crowd view is expressed as a simple yes/no probability; on Kalshi, the same matchup is typically shown in cents, which makes a 92¢ contract analogous to a 92% probability, while Betfair and Smarkets expose decimal odds and usually reveal the overround more directly once both sides are considered.

That gap makes the market sensitive to small pre-match changes rather than a broad read on class alone. Comparable ATP markets can move quickly when a player’s draw section, start time, or surface-specific suitability becomes clearer, and the window for settlement also matters: if the match is not completed and a player advances under tournament rules, the market resolves on that advancement, but if it is cancelled or left without a winner beyond seven days, it falls to 50-50. The match is still listed for 3 August at 10:00 ET on live tennis boards, so traders will be watching the official order of play, any late withdrawals, and whether Canadian Open scheduling changes affect whether the contest starts at all[1][6][9][15].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We read Canadian Open: Jaume Munar vs Rinky Hijikata 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

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

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.

Which platform has the deepest liquidity?

Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.

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.

Are all these platforms regulated?

No. Kalshi is CFTC-regulated (US). Betfair and Smarkets are UK Gambling Commission licensed. Polymarket operates without explicit regulation — a different risk profile than a regulated sportsbook.

Which platform supports Klarna/SOFORT?

Directly: none. Polymarket accepts only USDC on Polygon. Polymarket Alternative offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.