Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
PolyGram Pick polygram.ink |
48% | 52% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on PolyGram → |
Polymarket polymarket.com |
48% | 52% | 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
| Detroit Tigers vs. Baltimore Orioles | 48% YES | 53% NO |
| NRFI | 46% YES | 55% NO |
| Spread -1.5 | 37% YES | 64% NO |
| O/U 8.5 | 44% YES | 56% NO |
| O/U 10.5 | 26% YES | 74% NO |
| O/U 11.5 | 21% YES | 80% NO |
Market context
The Detroit Tigers host the Baltimore Orioles on 23 May at 4:05 PM ET in a regular-season MLB fixture. The 47% implied probability for a Tigers victory reflects a near-even matchup, though recent divisional form and roster depth favour closer inspection. Detroit enters May having stabilised after a sluggish April, whilst Baltimore has maintained competitive positioning within the AL East despite injury setbacks to key contributors.
Head-to-head records between these franchises show marginal historical advantage to Baltimore over the past three seasons, though home-field dynamics at Comerica Park have narrowed that gap considerably. The Tigers' pitching rotation depth remains a variable; if Detroit deploys a starter with sub-4.00 ERA, the probability typically shifts 5–7 percentage points in their favour. Baltimore's bullpen has been tested heavily through May, with closer Félix Bautista managing elevated usage rates that could affect late-inning availability.
Traders should monitor lineup announcements 24 hours before first pitch, particularly regarding Baltimore's outfield availability and Detroit's designated hitter status. Weather forecasts for Detroit on game day matter—wind direction from Lake Michigan has historically favoured fly-ball pitchers. Any last-minute roster moves or injury updates from either clubhouse in the 48 hours prior to game time could shift the line materially. The settlement window extends to 30 May, allowing for postponement resolution should weather force a delay.
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 PolyGram, which mirrors the Polymarket order book directly.
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?
- 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.
- 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.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in minutes.
Trade Detroit Tigers vs. Baltimore Orioles on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
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