Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via March Madness Predictions) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Aisha Wahab | 100% |
| Melissa Hernandez | 0% |
| Wendy Huang | 0% |
| Carin Elam | 0% |
| Matt Ortega | 0% |
| Rakhi Israni Singh | 0% |
| Victor Aguilar Jr. | 0% |
| Person A | 0% |
| Person B | 0% |
| Person C | 0% |
| Person D | 0% |
| Person E | 0% |
| Person F | 0% |
| Person G | 0% |
| Person H | 0% |
| Person I | 0% |
| Person J | 0% |
| Person K | 0% |
| Person L | 0% |
| Person M | 0% |
| Person N | 0% |
| Person O | 0% |
| Person P | 0% |
| Person Q | 0% |
| Person R | 0% |
| Person S | 0% |
| Person T | 0% |
| Person U | 0% |
| Person V | 0% |
| Person W | 0% |
| Person X | 0% |
| Person Y | 0% |
| Person Z | 0% |
| Other | 0% |
Market context
California's 14th Congressional district will hold a special election on 18 August 2026 to fill a vacant House seat. The district, which encompasses parts of the San Francisco Bay Area, has been reliably Democratic in recent cycles. The 100% implied probability reflects the near-certainty that *some* winner will be determined by the settlement deadline, rather than confidence in any particular candidate's prospects.
Special elections in California's 14th have historically produced outcomes aligned with the district's partisan lean. The 2022 general election saw the incumbent secure roughly 60% of the vote in a district where registered Democrats outnumber Republicans by approximately two-to-one. Comparable special elections in safely Democratic districts—such as California's 20th in 2022—resolved quickly without extended uncertainty, establishing precedent for decisive outcomes within the August window.
Traders should monitor candidate filing deadlines and primary results, as California's top-two primary system may determine the general election outcome if one candidate secures over 50% support. The California Secretary of State's office typically certifies results within weeks of election day, making the December 31 deadline a practical safeguard rather than a binding constraint. Any unexpected delays in vote counting or legal challenges to results would be the primary catalyst for resolution to "Other," though such complications remain uncommon in state legislative contests.
Methodology
Sports-specific comparison page for CA-14 Special Election Winner?. 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.
- 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.
- 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.
- Can I import form data and lineups?
- This page shows the live Polymarket quote as an implied probability. Form data and lineups must be researched separately via sports data providers (e.g. Soccerway, ESPN, FBref) — we surface the market probability, not the sport analysis.
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