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Seattle Mariners vs. Washington Nationals

How the prediction-market book is pricing "Seattle Mariners vs. Washington Nationals" right now, with a side-by-side platform comparison and zero-fee CTAs.

0% YES 100% NO Volume: $740K Liquidity: $788 Closes: 21 Jun 2026
Trade on Polymarket App UK →
Seattle Mariners vs. Washington Nationals

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket App UK Pick
polygram.ink
0% 100% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle Open on Polymarket App UK →
Polymarket
polymarket.com
0% 100% 0% Geo-blocked in US/UK/EU USDC, on-chain Open on Polymarket App UK →
Kalshi
kalshi.com
Up to 7% per trade US-only, KYC required USD Open on Polymarket App UK →
Betfair Exchange
betfair.com
2-5% commission Full KYC from first trade GBP / EUR Open on Polymarket App UK →
Manifold Markets
manifold.markets
Play-money (mana) None — play-money Mana (no cash-out) Open on Polymarket App UK →

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 Polymarket App UK.

Active sub-markets

Seattle Mariners vs. Washington Nationals0% Seattle Mariners100% Washington Nationals
NRFI100% YES0% NO
Spread -1.50% Seattle Mariners100% Washington Nationals
O/U 9.5100% Over0% Under
1st 5 Innings Spread -1.5100% Washington Nationals0% Seattle Mariners
1st 5 Innings Spread -2.50% Seattle Mariners100% Washington Nationals

Market context

Traders on decentralised prediction markets give 0% probability to seattle mariners vs. washington nationals. In the upcoming MLB game between the Seattle Mariners and Washington Nationals, scheduled for June 14 at 1:35PM ET: This market will resolve to "Seattle Mariners" if the Seattle Mariners win the game…

Methodology

This page reviews Seattle Mariners vs. Washington Nationals across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Polymarket App UK — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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

Is this market available outside the US?
Polymarket App UK 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.
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.
What does it cost to trade on Polymarket App UK?
Zero. Polymarket App UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.
Do I need to KYC for this market?
Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket App UK triggers a quick verification flow that finishes in minutes.
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Trade Seattle Mariners vs. Washington Nationals on Polymarket App UK

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