Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Sport Prediction) Pick polygram.ink (preferred broker) |
61% | 39% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
61% | 39% | 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 | 61% |
| December 31 | 43% |
| September 30 | 30% |
| July 15 | 19% |
| February 28 | 0% |
| March 31 | 0% |
Market context
Samuel Alito, aged 76, has given no public indication of retiring and is actively hiring clerks for the next term, confirming he intends to serve until at least 2027[1]. This behaviour mirrors the recent tenure of conservative justices who remained on the bench well past traditional retirement ages, with sources close to Alito stating he does not plan to leave this year[2]. Historical precedents show that justices like Stephen Breyer and Anthony Kennedy retired only when they felt their work was complete or due to specific health concerns, neither of which applies to Alito currently[4]. The current 0% market probability aligns with these facts, as Alito’s recruitment of new staff signals a clear commitment to continued service rather than an impending exit[1].
Traders should monitor official announcements from Alito himself, as the settlement source relies strictly on his direct declarations regarding retirement[1]. Key catalysts include the end of the current Supreme Court term in summer 2026, which often prompts speculation, though recent reports from Jan Crawford of CBS News confirm Alito has no plans to retire this year[4]. Additionally, watch for any shifts in political pressure from the White House, which reportedly seeks to persuade older justices like Alito and Clarence Thomas to step down, though no such announcement has materialised yet[6]. The absence of any public retirement hint, despite intense speculation, reinforces the low probability of a "Yes" resolution before the settlement window closes in 2026[2].
Methodology
Sports-specific comparison page for Will Samuel Alito announce his retirement by 2026?. 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
- 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.
- 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.
- 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.
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