Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via March Madness Predictions) Pick polygram.ink (preferred broker) |
67% | 33% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
67% | 33% | 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 |
|---|---|
| O/U 3.5 | 67% |
| O/U 4.5 | 57% |
| Extra Innings | 50% |
| Washington Nationals vs. New York Mets | 45% |
| Spread -2.5 | 42% |
| Spread -1.5 | 37% |
| O/U 5.5 | 37% |
| O/U 6.5 | 29% |
| Spread -1.5 | 25% |
| O/U 8.5 | 16% |
| Spread -2.5 | 14% |
| O/U 7.5 | 14% |
| O/U 9.5 | 5% |
| NRFI | 0% |
| 1st 5 Innings Spread -1.5 | 0% |
| 1st 5 Innings Spread -1.5 | 0% |
| 1st 5 Innings O/U 2.5 | 0% |
| 1st 5 Innings O/U 3.5 | 0% |
| 1st 5 Innings O/U 4.5 | 0% |
| 1st 5 Innings O/U 5.5 | 0% |
| 1st 5 Innings O/U 6.5 | 0% |
Market context
The Washington Nationals and New York Mets met at Citi Field on 14 August, with the market reflecting a slight lean towards the Mets despite the Nationals’ stronger recent form in this spot. Washington entered the series after Cade Cavalli’s strong outing, while the Mets’ overall record sat at 53-69, leaving little margin for error even at home.[8][1]
That 68% crowd-implied probability is higher than a simple coin flip but still leaves room for volatility because both clubs have been shaped by roster absences rather than stable, full-strength line-ups. The Mets have been missing Mark Vientos and Devin Williams, while Washington have been without James Wood and several pitchers, which makes late run support and bullpen depth more important than season-long records would suggest.[13][14][5]
For traders, the main catalysts are the confirmed starting pitchers, any late line-up changes, and whether either club rests regulars during the closing stretch of the three-game set. MLB’s game preview pointed to Andrew Alvarez trying to strengthen his rotation claim, which matters because starter quality and bullpen availability can swing a divisional game quickly, especially when both benches are already stretched.[4][15]
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $161K.
Methodology
Sports-specific comparison page for Washington Nationals vs. New York Mets. 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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