Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
PolyGram Pick polygram.ink |
34% | 66% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on PolyGram → |
Polymarket polymarket.com |
34% | 66% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on PolyGram → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on PolyGram → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on PolyGram → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on PolyGram → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on PolyGram.
Active sub-markets
| Washington Nationals vs. Atlanta Braves | 34% YES | 67% NO |
| NRFI | 53% YES | 47% NO |
| Spread -1.5 | 50% YES | 51% NO |
| O/U 9.5 | 43% YES | 57% NO |
| Spread -2.5 | 39% YES | 62% NO |
| Spread -4.5 | 24% YES | 77% NO |
Market context
The Washington Nationals face the Atlanta Braves in a scheduled MLB game at 7:15pm ET on 22 May. The crowd-implied 34% YES price is consistent with a market that sees Washington as an underdog, but not a hopeless one: in similar divisional match-ups, the away side’s chances tend to hinge less on season record than on who is starting and how the bullpen has handled recent volume. Atlanta generally carries the stronger baseline profile, so any Nationals win would usually require either a pitching edge or an unusually efficient night in run conversion.
For context, comparable Braves-Nationals meetings often move sharply on late lineup information, especially if a key bat is rested or a starter is scratched close to first pitch. ESPN’s team and game pages are useful for confirming the listed venue, time and any pre-game changes, while official MLB line-ups and injury notes determine whether the opening probability is still justified once the teams are announced. In a prediction-market setting, the resolution is straightforward on the final result, with no on-chain ambiguity if the game is played to completion and settled in USDC. Broader crypto conditions can still matter at the margin for trader behaviour: BTC and ETH spot moves, funding rates, and large stablecoin inflows or outflows often affect risk appetite across event markets, even when the sports fundamentals are unchanged.
Methodology
Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — are listed with their platform attributes, because they operate off-chain and a 1:1 comparison of contract mechanics isn't possible.
Resolution & payout
Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.
Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.
FAQ
- Where can I trade this market with the lowest fees?
- On PolyGram, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- Is this market available outside the US?
- PolyGram is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.
- 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.
- What does it cost to trade on PolyGram?
- Zero. PolyGram routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.
- How fast are USDC deposits?
- Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.
Trade Washington Nationals vs. Atlanta Braves on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
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