Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
PolyGram Pick polygram.ink |
44% | 56% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on PolyGram → |
Polymarket polymarket.com |
44% | 56% | 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
| Tampa Bay Rays vs. New York Yankees | 44% YES | 56% NO |
| NRFI | 50% YES | 51% NO |
| Spread -1.5 | 39% YES | 62% NO |
| O/U 8.5 | 43% YES | 57% NO |
| Spread -4.5 | 14% YES | 86% NO |
| Spread -3.5 | 21% YES | 80% NO |
Market context
The Tampa Bay Rays and New York Yankees are scheduled to meet in New York on 22 May, with the market settling on the official result once the game is finished. In prediction markets, a YES share pays if the Rays win, while a NO share pays if the Yankees win. At 44% YES, the crowd is leaning slightly towards a Yankees win, but not strongly enough to imply a clear favourite.
Recent form and season context help explain that middling price. ESPN’s standings snapshot shows New York at 80-64 and Tampa Bay at 72-72, with the Yankees also carrying stronger power numbers, including 73 home runs to the Rays’ 41. That gap does not decide a single game, but it is the sort of comparative record and run-production edge traders use when weighing a near-even matchup. Head-to-head results also matter in markets like this, although they are usually less predictive than current team strength over one game.
For traders, the main catalysts are lineup news, starting pitcher announcements, and any late scratch or weather-driven delay that could change the pitching matchup or push the game into a doubleheader spot. The market remains open if the game is postponed and only resolves once the official game is completed, while a cancellation or tie would settle 50-50. Watch the official MLB and team sources for pre-game roster updates, since those changes often move short-dated baseball markets more than broader season statistics do.
Methodology
We track Tampa Bay Rays vs. New York Yankees on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.
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
- 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.
- 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.
- 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.
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