Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via March Madness Predictions) Pick polygram.ink (preferred broker) |
19% | 81% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
19% | 81% | 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 |
|---|---|
| Gavin Newsom | 19% |
| Alexandria Ocasio-Cortez | 15% |
| Jon Ossoff | 11% |
| Kamala Harris | 7% |
| Pete Buttigieg | 5% |
| Josh Shapiro | 5% |
| Andy Beshear | 2% |
| Rahm Emanuel | 2% |
| Jon Stewart | 2% |
| Ro Khanna | 2% |
| Wes Moore | 1% |
| Stephen A. Smith | 1% |
| Gretchen Whitmer | 1% |
| Mark Cuban | 1% |
| J.B. Pritzker | 1% |
| Raphael Warnock | 1% |
| Cory Booker | 1% |
| Tim Walz | 1% |
| Michelle Obama | 1% |
| Mark Kelly | 1% |
| Gina Raimondo | 1% |
| Zohran Mamdani | 1% |
| Roy Cooper | 1% |
| John Fetterman | 1% |
| Jared Polis | 1% |
| Barack Obama | 1% |
| Hillary Clinton | 1% |
| Liz Cheney | 1% |
| Bernie Sanders | 1% |
| Phil Murphy | 1% |
| LeBron James | 1% |
| Hunter Biden | 1% |
| George Clooney | 1% |
| Chelsea Clinton | 1% |
| MrBeast | 1% |
| Dwayne 'The Rock' Johnson | 1% |
| Oprah Winfrey | 1% |
| Andrew Yang | 1% |
| Beto O’Rourke | 1% |
| Kim Kardashian | 1% |
| Chris Murphy | 1% |
| Jasmine Crockett | 1% |
| Ruben Gallego | 1% |
| James Talarico | 1% |
| Graham Platner | 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% |
| Person AA | 0% |
| Person AB | 0% |
| Person AC | 0% |
| Person AD | 0% |
| Person AE | 0% |
| Person AF | 0% |
| Person AG | 0% |
| Person AH | 0% |
| Person AI | 0% |
| Person AJ | 0% |
| Person AK | 0% |
| Person AL | 0% |
| Person AM | 0% |
| Person AN | 0% |
| Person AO | 0% |
| Person AP | 0% |
| Person AQ | 0% |
| Person AR | 0% |
| Person AS | 0% |
| Person AT | 0% |
| Person AU | 0% |
| Person AV | 0% |
| Person AW | 0% |
| Person AX | 0% |
| Person AY | 0% |
| Person AZ | 0% |
| Person BA | 0% |
| Person BB | 0% |
| Person BC | 0% |
| Person BD | 0% |
| Person BE | 0% |
| Person BF | 0% |
| Person BG | 0% |
| Person BH | 0% |
| Person BI | 0% |
| Person BJ | 0% |
| Person BK | 0% |
| Person BL | 0% |
| Person BM | 0% |
| Person BN | 0% |
| Person BO | 0% |
| Person BP | 0% |
| Person BQ | 0% |
| Person BR | 0% |
| Person BS | 0% |
| Person BT | 0% |
| Person BU | 0% |
| Person BV | 0% |
| Person BW | 0% |
| Person BX | 0% |
| Person BY | 0% |
| Person BZ | 0% |
| Person CA | 0% |
| Person CB | 0% |
| Person CC | 0% |
| Person CD | 0% |
| Person CE | 0% |
| Person CF | 0% |
| Person CG | 0% |
| Person CH | 0% |
| Person CI | 0% |
| Person CJ | 0% |
| Person CK | 0% |
| Person CL | 0% |
| Person CM | 0% |
| Person CN | 0% |
| Person CO | 0% |
| Person CP | 0% |
| Person CQ | 0% |
| Person CR | 0% |
| Person CS | 0% |
| Other | 0% |
Market context
The real-world event is the emerging contest for the 2028 Democratic presidential nomination, where the market currently assigns a 19% chance to a specific individual winning and accepting the party’s top ticket. This probability reflects a fragmented field with no clear consensus candidate yet, as support is scattered across governors like Gavin Newsom, Josh Shapiro, and Andy Beshear, alongside senators and progressives such as Jon Ossoff and Alexandria Ocasio-Cortez. Newsom leads the market at 24.3% due to his high national profile, frequent clashes with the Trump administration, and strategic positioning around the 2026 midterms and state redistricting efforts[1].
Historically, early nomination probabilities of around 20% have often been revised sharply upward when a candidate gains a defining moment, such as a DOJ investigation framed as politically motivated or a surge in voter polling. Newsom’s odds rose after a late-May poll placed him at 24% support among Democratic voters, the highest of any potential nominee, reinforcing his front-runner status and market confidence[1]. Comparable cases show that such momentum, when paired with a clear narrative like opposition to the current administration, can quickly shift market pricing from fragmented support to dominant positioning.
Traders should watch for key catalysts including the 2026 midterm election results, state-level redistricting announcements, and any official statements from Newsom or other top contenders about their 2028 intentions. A recent report noted that Newsom’s profile increased after he framed a DOJ investigation as politically motivated, which raised market confidence in his viability[1]. Additional dependencies include the timing of primary candidate filings, fundraising milestones, and any shifts in Democratic voter sentiment as the 2026 cycle progresses, all of which could alter the current 19% probability.
Methodology
Sports-specific comparison page for Democratic Presidential Nominee 2028. 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.
- 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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