Iasi Open, Qualification: Ilinca Amariei vs Carmen Andreea Herea

Platform comparison

Market context

The real-world event is a WTA qualification match at the Iasi Open in Romania, where Ilinca Amariei faces Carmen Andreea Herea on 13 July 2026. In prediction markets, a YES share pays out if the market’s condition is met—here, if Amariei advances—while a NO share pays if she does not. This market currently shows a 100% implied probability for YES, suggesting the crowd expects Amariei to win outright.

Historically, such extreme probabilities in tennis qualifiers often reflect a clear disparity in recent form or ranking, though they can also signal incomplete information if a player is injured or absent. In comparable WTA qualifying matches, odds of 2.62 for Amariei against Herea’s 1.44 (as seen on Sportsbet) indicate Herea is the favourite, which contradicts the 100% YES pricing and raises a question about whether the market has misread the odds or if there is unpublicised context, such as a withdrawal or format change [1].

Traders should monitor official WTA or tournament announcements for any match cancellations, delays beyond seven days, or player withdrawals, as these would trigger a 50-50 resolution. The match is scheduled for 08:00 UTC at Center Court, Iasi, and any delay past this window without a winner will alter the outcome [2]. With the settlement window ending in July 2026, the key catalyst is the match result itself, but confirmation of play status remains critical before the event concludes.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Iasi Open, Qualification: Ilinca Amariei vs Carmen Andreea Herea across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

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 does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Prediction Market UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.