Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Alternative UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| NRFI | 100% |
| Spread -1.5 | 100% |
| 1st 5 Innings Spread -1.5 | 100% |
| 1st 5 Innings O/U 2.5 | 100% |
| Spread -2.5 | 100% |
| O/U 8.5 | 100% |
| O/U 7.5 | 100% |
| O/U 6.5 | 100% |
| O/U 5.5 | 100% |
| O/U 4.5 | 100% |
| 1st 5 Innings O/U 3.5 | 1% |
| 1st 5 Innings O/U 6.5 | 1% |
| Washington Nationals vs. Philadelphia Phillies | 0% |
| O/U 9.5 | 0% |
| 1st 5 Innings Spread -1.5 | 0% |
| 1st 5 Innings O/U 4.5 | 0% |
| 1st 5 Innings O/U 5.5 | 0% |
| Extra Innings | 0% |
| Spread -1.5 | 0% |
| Spread -2.5 | 0% |
| O/U 10.5 | 0% |
| O/U 11.5 | 0% |
| Spread -3.5 | 0% |
| Spread -3.5 | 0% |
Market context
Polymarket is pricing the Philadelphia Phillies–Washington Nationals contract at **0% YES** for Washington, so the conditional token market is effectively saying the Nationals have no remaining chance in this market at current prices. Because settlement is in USDC on Polygon and resolves off the official final result, the key issue for holders is not pre-game sentiment but whether the scheduled game is still pending, completed, or subject to a postponement or cancellation that would keep the contract open or push it to 50-50.
For historical context, this pairing has not been especially one-sided in recent head-to-heads, but the recent results have tilted towards Philadelphia in the higher-leverage spots. The Phillies beat Washington 6-3 on 3 August 2026, and they also took a 10-5 win on 25 June 2026, while the Nationals’ notable response was a 4-1 win on 22 June 2026.[2][14][1] Earlier this season, the clubs traded wins in a series that included a Nationals 13-2 victory and a Phillies 3-2 win, which shows that short-run MLB variance can move prices sharply even when the broader season profile is lopsided.[2][18] That kind of game-to-game volatility is exactly what a zero-priced contract can still reflect if the market is merely awaiting a confirmed result.
A trader should watch the official game status, line-up confirmation, and any weather or schedule changes, because a postponement leaves the market open until the game is actually completed, while a cancellation or tie would settle 50-50 under the rules. The Phillies entered the series at 96-66 and the Nationals at 66-96, which is the sort of record gap that usually keeps Washington’s win probability compressed unless the market gets a clear opposing catalyst such as a pitching change or a late scratch.[9] One recent preview also listed Philadelphia as a home favourite and noted Aaron Nola among the Phillies’ probable pitching context, reinforcing why the crowd may have been reluctant to assign Washington meaningful odds.[3]
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $767K.
Methodology
We track Washington Nationals vs. Philadelphia Phillies across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
FAQ
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Alternative UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- What's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Alternative UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
- How reliable are the quoted odds?
- The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.
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