National Bank Open: Elina Svitolina vs Anastasia Potapova

Platform comparison

Market context

Elina Svitolina versus Anastasia Potapova is a women’s singles match at the National Bank Open, and the 81% crowd-implied price points to Svitolina as a clear favourite on the exchange-style view of the contest. On the underlying tennis data, that is consistent with the players’ current standing: Svitolina is ranked around No. 9-12 in the recent sources, while Potapova is around No. 24-27, and Svitolina won their only previous meeting, a straight-sets hard-court match in Monterrey in March 2022.[1][2][7]

For comparison across platforms, Polymarket prices the event as a simple implied probability, while Kalshi typically shows a binary contract price that maps directly to market probability, and Betfair/Smarkets express the same view in decimal odds terms after commission. On this specific match, the gap between an 81% market price and a bookmaker-style quote would mainly reflect fee treatment and how much vig or commission is embedded, not a different assessment of who is ahead; exchange markets also remain sensitive to late liquidity, which can matter more than the raw headline number. Svitolina’s broader hard-court profile is stronger too: recent sources put her 52-week record well above Potapova’s, and one preview source noted she had been defending quarter-final points at the tournament.[1][6][13]

The main catalysts are confirmation that the match is actually played on schedule, whether either player is withdrawn, and any late schedule shift at the National Bank Open, because the contract settles 50-50 if the match is cancelled, tied, or delayed beyond seven days without a winner. A Tennis.com match page listed Svitolina as the projected winner at 66% and showed the Toronto round-three pairing as upcoming, which is useful for cross-checking whether the event remains active and properly slotted.[7] For traders comparing platforms, that operational risk matters: a standard tennis market may still look straightforward on Polymarket or Kalshi, but Betfair and Smarkets users also have to account for commission and, in some cases, tighter KYC access before they can participate.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We read National Bank Open: Elina Svitolina vs Anastasia Potapova 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.

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.

Which platform supports Klarna/SOFORT?

Directly: none. Polymarket accepts only USDC on Polygon. Robinhood Prediction Markets 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.