US Open, Qualification ATP: Jack Secord vs Tristan Schoolkate

Platform comparison

Market context

Jack Secord’s US Open qualifying match against Tristan Schoolkate sits in the early-round section of a draw that began on 24 August and runs through 27 August at Flushing Meadows, with play on the outside courts scheduled around 11:00 a.m. ET on Wednesday. Secord was listed among the US wild cards, while Schoolkate entered as the more established tour-level name, which helps explain why a market price near 1% on Secord implies a very lopsided view of the matchup rather than a true coin flip.

That gap is broadly consistent with comparable qualifying markets, where the lesser-known wild card can shorten sharply only if the opponent arrives with weak recent form, injury doubts, or scheduling disruption. In this contract, the real question is whether the crowd price is simply reflecting the baseline ranking and experience gap, or whether it is overstating Schoolkate’s edge relative to sportsbook lines and any model-based consensus.

Traders should watch the order of play and live status on the US Open schedule, because qualifying has a tight four-day structure and any delay can push matches around the outside courts. The key catalyst is simple: if the match starts and finishes normally, the market should resolve to the advancing player; if it is not completed by the settlement deadline, the contract can fall to 50-50, so late-session postponements matter as much as pre-match prices.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track US Open, Qualification ATP: Jack Secord vs Tristan Schoolkate 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

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.

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.

Do I need to KYC for this market?

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