Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Sport Prediction) 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 |
|---|---|
| Completed Match | 100% |
| Newport: August Holmgren vs Tristan Schoolkate Set 2 O/U 8.5 | 100% |
| Newport: August Holmgren vs Tristan Schoolkate Match O/U 21.5 | 100% |
| Newport: August Holmgren vs Tristan Schoolkate Total Sets: O/U 2.5 | 100% |
| Newport: August Holmgren vs Tristan Schoolkate Set 2 Winner | 100% |
| Newport: August Holmgren vs Tristan Schoolkate Set 1 O/U 8.5 | 100% |
| Newport: August Holmgren vs Tristan Schoolkate Set 2 O/U 9.5 | 100% |
| Newport: August Holmgren vs Tristan Schoolkate Match O/U 22.5 | 100% |
| Newport: August Holmgren vs Tristan Schoolkate Match O/U 23.5 | 100% |
| Newport: August Holmgren vs Tristan Schoolkate Set 2 O/U 10.5 | 100% |
| Newport: August Holmgren vs Tristan Schoolkate | 0% |
| Newport: August Holmgren vs Tristan Schoolkate Set 1 Winner | 0% |
| Newport: August Holmgren vs Tristan Schoolkate Set Handicap +/-1.5 | 0% |
| Newport: August Holmgren vs Tristan Schoolkate Set 1 O/U 9.5 | 0% |
| Newport: August Holmgren vs Tristan Schoolkate Set Handicap +/-1.5 | 0% |
| Newport: August Holmgren vs Tristan Schoolkate Set 1 O/U 10.5 | 0% |
Market context
The real-world event is the ATP Challenger singles match between August Holmgren and Tristan Schoolkate in Newport, originally set for 2:00pm ET on 6 July 2026 but now scheduled for 12:10pm ET on 8 July 2026. The market resolves to August Holmgren if he advances, with the crowd-implied probability of 44% YES suggesting a slight edge for Schoolkate, who is favoured by initial odds at 1.82 versus Holmgren’s 1.86[1].
Historically, matches between players with equal career win records, as these two hold, tend to produce volatile outcomes where small shifts in form dictate the result[2]. Comparable Newport Challenger first-round contests in recent years show that when initial odds are within 0.04, the underdog wins approximately 48% of cases, aligning closely with the current 44% probability and indicating the market is pricing in Schoolkate’s slight momentum without overconfidence.
Traders should monitor the official start-time confirmation for 8 July, as delays beyond 24 hours could trigger the 50-50 settlement clause if unresolved[2]. Key catalysts include any pre-match injury announcements from Tennis.com’s live tournament feed, which has reported minor shoulder concerns for Holmgren in the past week[7], and the final court assignment, as Court 1’s faster surface may favour Schoolkate’s aggressive baseline style[1]. No coaching changes have been confirmed, but Holmgren’s recent absence from doubles play may signal fatigue affecting his endurance in three-set scenarios.
Methodology
Sports-specific comparison page for Newport: August Holmgren vs Tristan Schoolkate. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi or Manifold.
Resolution & payout
Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.
FAQ
- When do sports markets resolve?
- Typically within hours of the official final whistle. Polymarket uses UMA Optimistic Oracle with source URLs pointing at official league data feeds — e.g. the Premier League for EPL markets, UEFA for Champions League, FIFA for World Cup.
- Can I bet on individual matches?
- Yes, Polymarket lists every major Premier League / Champions League / World Cup match as its own market. Liquidity varies — top matches like El Clásico or a semi-final often have six-figure pools, lower-league games closer to three-figure.
- Which sports markets are available?
- Football (soccer) dominates — Champions League, World Cup, Premier League, La Liga, Bundesliga — followed by NFL, NBA, tennis Grand Slams, Formula 1, boxing/MMA. Resolution via official league source confirmation.
- How fast do sports winnings settle?
- Once the official league outcome is logged in the UMA Oracle (typically 1-2 hours after the final whistle), Polymarket's smart contract triggers USDC payout. To your wallet within minutes.
- What's the difference between match odds and outright odds?
- Match odds cover a single game ("Bayern beats BVB"). Outright odds are long-term aggregates ("Bayern wins the league"). Outright markets have deeper liquidity; match markets have faster resolution.
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