Halle Open: Alexander Zverev vs Raphael Collignon

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Market context

Alexander Zverev is scheduled to play in Halle on a grass-court ATP 500 event that runs from 15 to 21 June, and the market will pay out on whether he advances past Raphael Collignon or not. In prediction-market terms, a **YES** share pays if Zverev wins that match-up, while a **NO** share pays if Collignon advances; if the match is not played, ends level, or is delayed beyond the market’s seven-day cutoff without a winner, the contract settles 50-50. [1][5]

The 0% crowd-implied probability means traders are pricing in Zverev as an overwhelming favourite, which is consistent with how markets usually treat a high-ranked home player in an ATP 500 grass event against a lesser-known opponent. Comparable tennis markets often move sharply once the draw, schedule, and confirmed line-ups are clear, because tennis is an event-driven sport where one withdrawal or reschedule can change the settlement path as well as the match outcome. [1][5][7]

For traders, the key catalysts are late schedule changes, injury or withdrawal news, and any update from the ATP or tournament organisers on whether Zverev’s match starts and finishes on time. The ATP’s published schedule shows Zverev in Friday’s order of play in Halle, so the main practical risk is not price direction but whether the contest is actually completed before the settlement window closes. [1][5]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Halle Open: Alexander Zverev vs Raphael Collignon on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

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

Where can I trade this market with the lowest fees?

On Prediction Market UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Prediction Market UK is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

What does it cost to trade on Prediction Market UK?

Zero. Prediction Market UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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.