National Bank Open: Daniel Merida Aguilar vs Alex Michelsen

Platform comparison

Market context

Polymarket is pricing this contract at **100% YES**, which means the market is treating Daniel Merida Aguilar’s advance over Alex Michelsen as effectively certain in USDC-settled terms on Polygon through the conditional-token structure. With the settlement window still open until 2026-08-14T14:00:00Z, that price reflects the crowd’s expectation of a completed result rather than a cancellation or delay outcome.

That reading is consistent with the event data, which shows the National Bank Open meeting between the pair was scheduled for 7 August and had a live match listing, with Michelsen entering as the higher-ranked player and the prior head-to-head already favouring him 1-0 on hard court. Sports-tracking pages also show earlier market commentary clustered around Michelsen as the stronger side, so a 100% quote on Merida points to the Polymarket contract being driven by match status and timing as much as by pure tennis form.[1][2][12][16][19]

For traders, the main catalysts are straightforward: whether the match actually starts, whether it is completed inside the seven-day rule from the scheduled date, and whether any ATP or tournament scheduling change pushes it into the tie-priced zone. A live or delayed official result matters because the token payout depends on the specific resolution rules, not just on who was expected to win, so any withdrawal, suspension, or abandonment announcement can matter more here than pre-match handicap lines or model predictions.[3][4][14][15]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

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.

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.