Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Mundial 2026 Grupos) Pick polygram.ink (preferred broker) |
35% | 65% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
35% | 65% | 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 |
|---|---|
| June 30, 2027 | 35% |
| December 31 | 6% |
| September 30 | 1% |
| July 15 | 0% |
| February 28 | 0% |
| March 31 | 0% |
Market context
Samuel Alito, the longest-serving current member of the Supreme Court's conservative bloc, has given no public indication of plans to step down from his position as Associate Justice. At 74 years old, he remains active on the bench and has shown no signs of health decline or reduced workload. The 2% probability reflects the market's assessment that an announcement by end of 2026 is a low-probability event, though not impossible.
Retirement announcements from sitting justices typically follow established patterns. Justice Anthony Kennedy announced his retirement in June 2018 after 30 years of service, whilst Justice Stephen Breyer announced his in June 2022 at age 83. Both gave advance notice during the Court's term-end period, allowing time for nomination and confirmation processes. Alito's tenure began in 2006, and he has shown no comparable signals. Historical precedent suggests justices either announce mid-term or signal intent well in advance; sudden announcements without prior indication remain rare.
The primary catalyst traders should monitor is Alito's health status and any public statements regarding his future plans. The Court's annual term schedule runs through June, making summer months the traditional window for retirement announcements. Political developments—including shifts in Senate composition following the 2026 midterms—could theoretically influence timing, though justices generally insulate retirement decisions from electoral cycles. Media reports from sources including the Supreme Court's official docket and major legal publications would provide the first indication of any change in Alito's stated intentions.
Methodology
Football-specific comparison page for Pronóstico: Will Samuel Alito announce his retirement by 2027?. 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 (US-focused) or Manifold (play-money).
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
- Are prediction markets better than sports betting?
- Prediction markets tend toward tighter odds than bookmakers because they use peer-to-peer exchange rather than bookmaker margin. On major matches, Polymarket quotes typically sit 2-5% closer to the true probability model than bet365 or DraftKings.
- 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.
- What are live sports odds on Polymarket?
- Some top-tier matches stay open during play — you can trade the half-time probability in the 70th minute. Polymarket mid-prices update second-by-second; any frontend mirroring the order book shows the same movement.
- 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.
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