National Bank Open: Janice Tjen vs Liudmila Samsonova

Platform comparison

Market context

Polymarket is pricing this contract at **0% YES** on USDC settled through Polygon conditional tokens, which means the market currently assigns virtually no chance to **Janice Tjen** advancing against **Liudmila Samsonova**. On a user’s screen, that does not mean the match is impossible; it means there is no willingness to pay for Tjen exposure at present, so any change will likely come from fresh team news, draw movement, or a sharp shift in perceived matchup equity.

The historical read is straightforward: Samsonova has already beaten Tjen in their only recorded head-to-head, a straight-sets win at the 2026 Abu Dhabi WTA event on hard court.[1][2] Publicly listed preview pricing for this Toronto meeting also leans Samsonova, with Tennis.com showing Tjen at 38% and the projected winner at 62%.[7] That sits better with the prior result and with Samsonova’s broader experience level than with a zero-price market, so the current Polymarket line looks more like an extreme sentiment print than a balanced estimate of match probability.[1][7]

The practical catalysts are simple: confirmation that the first-round match is played as scheduled, any late withdrawal or retirement news, and whether the tournament order of play changes before the settlement window closes. If the match is not played at all, is tied, or is pushed beyond seven days without a winner, the contract resolves 50-50 under the market rules; if it starts but is unfinished, the eventual on-court outcome still determines resolution once a winner is recorded. For traders, the main dependency is official tournament communication rather than speculation about form.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket Scam?, which mirrors the Polymarket order book directly.

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 Polymarket Scam?. 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.

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.

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.

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.