Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Best Prediction Markets) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Newport: Greet Minnen vs Madison Brengle | 100% |
| Completed Match | 100% |
| Newport: Greet Minnen vs Madison Brengle Set 1 Winner | 100% |
| Newport: Greet Minnen vs Madison Brengle Set 1 O/U 8.5 | 100% |
| Newport: Greet Minnen vs Madison Brengle Set 2 Winner | 100% |
| Newport: Greet Minnen vs Madison Brengle Set Handicap +/-1.5 | 100% |
| Newport: Greet Minnen vs Madison Brengle Set 1 O/U 9.5 | 100% |
| Newport: Greet Minnen vs Madison Brengle Set 1 O/U 10.5 | 100% |
| Newport: Greet Minnen vs Madison Brengle Total Sets: O/U 2.5 | 0% |
| Newport: Greet Minnen vs Madison Brengle Set 2 O/U 8.5 | 0% |
| Newport: Greet Minnen vs Madison Brengle Match O/U 21.5 | 0% |
| Newport: Greet Minnen vs Madison Brengle Match O/U 22.5 | 0% |
| Newport: Greet Minnen vs Madison Brengle Set Handicap +/-1.5 | 0% |
| Newport: Greet Minnen vs Madison Brengle Set 2 O/U 9.5 | 0% |
| Newport: Greet Minnen vs Madison Brengle Match O/U 23.5 | 0% |
| Newport: Greet Minnen vs Madison Brengle Set 2 O/U 10.5 | 0% |
Market context
The Newport Hall of Fame Open match between Greet Minnen and Madison Brengle, scheduled for 3:30 PM ET on 10 July 2026, has attracted a 100% crowd-implied probability favouring Minnen to advance. This near-certainty aligns with Sky Bet’s match-winner odds of 1/4 for the Belgian, suggesting sportsbooks and prediction markets are in tight agreement on Minnen’s superiority in this encounter [6].
Historically, such 100% implied probabilities in WTA singles often precede either a walkover or a match where one player holds a decisive ranking and physical advantage. Minnen, aged 28 and ranked 205, faces Brengle, 36 and ranked 223, creating a clear age and form gap that mirrors past Newport upsets where younger, higher-ranked players dominated [8]. In comparable cases, markets with full certainty have resolved cleanly unless injury or cancellation intervenes, which would trigger the 50-50 settlement clause.
Traders should monitor pre-match announcements for Brengle’s fitness status, as her age and lower ranking increase vulnerability to late withdrawals. The match begins today at Newport’s CENTER venue, with live streams confirming the 3:30 PM ET start time [1][4]. Any delay beyond seven days without a winner, or an incomplete match where one player advances due to opponent withdrawal, will alter settlement outcomes. No recent injury reports have surfaced, but the settlement window closing on 17 July 2026 leaves ample time for delayed resolution if weather or logistics disrupt play [1].
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Best Prediction Markets, which mirrors the Polymarket order book directly.
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.
- 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.
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