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Seattle Mariners vs. Washington Nationals

Five-platform snapshot of "Seattle Mariners vs. Washington Nationals" — live Polymarket pricing, plus how Kalshi, Betfair and Manifold structure the same contract.

1% YES 99% NO Volume: $709K Liquidity: $88K Closes: 21 Jun 2026
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Seattle Mariners vs. Washington Nationals

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Prediction Today Pick
polygram.ink
1% 99% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle Open on Prediction Today →
Polymarket
polymarket.com
1% 99% 0% Geo-blocked in US/UK/EU USDC, on-chain Open on Prediction Today →
Kalshi
kalshi.com
Up to 7% per trade US-only, KYC required USD Open on Prediction Today →
Betfair Exchange
betfair.com
2-5% commission Full KYC from first trade GBP / EUR Open on Prediction Today →
Manifold Markets
manifold.markets
Play-money (mana) None — play-money Mana (no cash-out) Open on Prediction Today →

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 Prediction Today.

Active sub-markets

Seattle Mariners vs. Washington Nationals1% Seattle Mariners100% Washington Nationals
NRFI100% YES0% NO
Spread -1.51% Seattle Mariners99% Washington Nationals
O/U 9.535% Over66% Under
1st 5 Innings Spread -1.599% Washington Nationals1% Seattle Mariners
1st 5 Innings Spread -2.50% Seattle Mariners100% Washington Nationals

Market context

Market consensus: 1% chance of seattle mariners vs. washington nationals. Prediction markets aggregate real capital to produce this probability signal. 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 M…

Methodology

This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to Prediction Today, which mirrors the Polymarket order book directly.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Where can I trade this market with the lowest fees?
On Prediction Today, 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?
Prediction Today 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.
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.
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.
and

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