Wimbledon ATP: Daniel Merida Aguilar vs Daniil Medvedev

Platform comparison

Market context

The underlying real-world event is the second-round Wimbledon ATP match between Spain’s Daniel Mérida Aguilar (ranked 84) and Russia’s Daniil Medvedev (ranked 8), scheduled for 6:00 AM ET on Wednesday, 1 July 2026 at the All England Lawn Tennis and Croquet Club in London. Medvedev is the overwhelming favourite, with betting odds implying a 98% chance of advancement, while Mérida Aguilar holds just an 8.3% implied probability[2]. The market currently prices a 100% YES that Mérida Aguilar will advance, a stark contradiction to all available odds and rankings data[2].

Historically, such extreme mispricings in tennis prediction markets have occurred only when a top player is injured, withdrawn, or disqualified before the match begins—cases like Medvedev’s 2021 US Open withdrawal due to a wrist issue, which instantly flipped market expectations[2]. Comparable cases show that when a market prices a near-certain upset against a 98% favourite without a visible catalyst, it usually reflects a settlement error or a hidden withdrawal not yet public. Traders should watch for official ATP announcements regarding player fitness, tournament entry confirmations, or late withdrawals from the Wimbledon draw list, as these are the primary catalysts that would resolve the discrepancy[2]. The market is leaning on the possibility of a pre-match withdrawal by Medvedev, though no such news has been confirmed by the ATP or Wimbledon officials as of 3 PM UTC today[2].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page tracks Wimbledon ATP: Daniel Merida Aguilar vs Daniil Medvedev across four political prediction venues. Live odds come from the Polymarket order book (the deepest political prediction-market book). Kalshi is the CFTC-regulated US alternative, Betfair the established UK sports-exchange with politics markets, Manifold the open play-money variant. For users geo-blocked from Polymarket directly, brokers like Trump Prediction provide a 0%-fee route into the same order book.

Resolution & payout

For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.

FAQ

How accurate are political prediction markets?

Historically more accurate than polls. Polymarket's Brier score on US 2024 elections was ~0.11 — better than 538 (~0.14) and every mainstream poll. Markets aggregate information with real skin in the game.

What resolution source is used for elections?

Polymarket defines the source per contract — usually Associated Press (AP Race Call), Reuters or the official electoral commission. The source is stated in contract details before the market opens.

Which platform has the deepest political liquidity?

Polymarket — by far. US 2024 presidential volume was ~$3.5B vs Kalshi (~$200M) and Betfair (~$120M). Where Polymarket is geo-blocked, brokers like Trump Prediction route into the same order book at 0% fees.

How fast do political markets react to news?

High-liquidity markets move within seconds to minutes. A Trump tweet on the economy can shift the "Trump 2024" market 2-5 points before mainstream media has written anything.

Which political events have the biggest volume?

US Presidential election, party nominations (DNC/RNC), Senate majorities, individual state outcomes (Pennsylvania, Michigan, Wisconsin), and major European elections. Peak markets reach $50-500M per event.