National Bank Open: Nicolas Mejia vs Martin Landaluce

Platform comparison

Market context

Nicolas Mejia and Martin Landaluce are playing a first-round match at the National Bank Open, with no prior head-to-head record. The market’s 18% YES price implies Mejia is a clear outsider, which fits the broader ranking gap shown in match listings: Landaluce is around ATP 63/64, while Mejia is around ATP 131/129 in live rankings.[10][6]

Comparable form data points in the same direction but not decisively. Flashscore notes Mejia is still seeking his first main-draw win at tour level on hard courts, with a 0-3 record, while Landaluce has a 14-11 season record against players ranked outside the top 100 and a 4-4 career mark in Masters first-round matches.[1] That makes the current price look more like a “live underdog with a route” than a coin-flip, especially in a best-of-three format where one early break or fitness issue can swing the result quickly.[1][2]

For traders, the key catalysts are simple: whether the scheduled August 2 start is confirmed, whether the match is delayed, and whether either player withdraws before completion. The contract settles to 50-50 if the match is not played, ends in a tie, or is pushed beyond seven days without a winner, so postponement risk matters as much as the on-court favourite.[Market terms] In on-chain terms, the event is a binary USDC-style exposure: the implied probability will usually track any late schedule updates more than broader crypto moves, though a sharp BTC or ETH risk-off move can still affect liquidity and pricing around the market if the book thins out.[Market terms]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reads National Bank Open: Nicolas Mejia vs Martin Landaluce on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed alongside for venue context. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.

Resolution & payout

Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.

Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.

FAQ

What does a transaction cost on Polygon?

Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.

Can I use Bitcoin directly?

No, Polymarket operates exclusively in USDC on Polygon. You can bridge BTC to USDC via an exchange or bridge service and deposit on Polygon — typically 10-30 minutes processing time.

How does UMA secure the resolution?

The UMA Optimistic Oracle uses a bond system: a proposer posts a bond, a two-hour challenge window opens. On dispute the losing side forfeits the bond — financial incentive for honest resolution.

Which crypto markets exist on Polymarket?

Currently active markets include BTC/ETH/SOL price targets, halving dates, ETF approvals, hard-fork outcomes and Layer-2 TVL thresholds. The list updates weekly; biggest volume sits on BTC and ETH price forecasts.

Are crypto prediction markets taxable in the US?

In the US, prediction market gains are typically treated as ordinary income or short-term capital gains depending on holding period. Consult a tax professional for your specific situation — we cannot provide tax advice.