Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Tax UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Washington Nationals vs. Baltimore Orioles | 100% |
| NRFI | 100% |
| O/U 9.5 | 100% |
| 1st 5 Innings Spread -1.5 | 100% |
| 1st 5 Innings Spread -2.5 | 100% |
| 1st 5 Innings O/U 2.5 | 100% |
| 1st 5 Innings O/U 3.5 | 100% |
| 1st 5 Innings O/U 4.5 | 100% |
| 1st 5 Innings O/U 5.5 | 100% |
| 1st 5 Innings O/U 6.5 | 100% |
| Spread -1.5 | 100% |
| O/U 8.5 | 100% |
| Spread -1.5 | 0% |
| 1st 5 Innings Spread -1.5 | 0% |
| 1st 5 Innings Spread -2.5 | 0% |
| Extra Innings | 0% |
| Spread -3.5 | 0% |
| O/U 10.5 | 0% |
| Spread -2.5 | 0% |
| O/U 12.5 | 0% |
| Spread -4.5 | 0% |
| Spread -2.5 | 0% |
| Spread -3.5 | 0% |
| O/U 11.5 | 0% |
Market context
The underlying real-world event is the Major League Baseball game between the Washington Nationals and the Baltimore Orioles, played on Sunday, 28 June 2026 at Oriole Park at Camden Yards in Baltimore. The Washington Nationals secured a decisive 6–4 victory, with Luis García Jr. homering twice and driving in five runs to lead his team[2][6]. This result confirms the crowd-implied probability of 100% YES for the Nationals winning, as the game has already concluded with a clear winner[2].
Historically, similar MLB prediction markets have resolved definitively once the final score is officially recorded by the league, with no retroactive adjustments unless a game is postponed or cancelled entirely[1]. In past cases where a team won by a significant margin, markets resolved immediately without delay, mirroring the current certainty of the Nationals’ outcome[1]. The 100% probability reflects this established precedent where final statistics, not projections, dictate resolution.
Traders should monitor official MLB announcements regarding any potential game cancellations or make-up dates, though none are expected given the game’s completion[4]. Recent coverage from The Athletic confirms the final score and validates the resolution source as the league’s official final statistics[4]. For accessibility, the “no-KYC up to $1,500” provision means users can participate without identity verification, aligning with German GlüStV’s tolerance for small-scale betting and the US CFTC’s reach over digital commodity markets, ensuring broad access to this settled market.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $431K.
Methodology
This overview of Washington Nationals vs. Baltimore Orioles reviews the four comparable platforms from a regulatory perspective: which is accessible in your jurisdiction, where KYC kicks in, how the platform is classified by your country of residence. Live probability is the Polymarket mid; comparison columns show regulatory status, KYC thresholds and settlement options for each platform.
Resolution & payout
On Polymarket, resolution runs on-chain via UMA Optimistic Oracle. USDC payout is instant and automatic, with no KYC. Tax treatment depends on your jurisdiction — in the US, gains are usually ordinary income; in the UK, often capital gains. Consult a tax professional for your situation.
FAQ
- Do I need to KYC for Polymarket Tax UK?
- Not for lifetime trading volume under $1,500. Above that threshold, a quick KYC flow kicks in — ID, selfie, approximately 5-10 minutes. The threshold matches FATF travel standards for unregulated crypto platforms.
- How are winnings taxed?
- Tax treatment varies by jurisdiction. In most countries, prediction market gains are treated as ordinary income or capital gains. We cannot provide tax advice — consult a tax professional for your specific situation.
- What happens during a tax audit?
- You're responsible for documenting your trades. Polymarket Tax UK exports a full transaction history (CSV/PDF) for tax reporting. In an audit you'll need to present these documents.
- Are prediction markets gambling?
- Legally unclear in most jurisdictions. Some interpretations classify them as wagering (gambling regulation applies), others as derivatives (financial regulation applies). There's no global precedent specifically for on-chain prediction markets.
- Is there a withdrawal cap?
- No platform-side cap. You can withdraw any amount provided KYC is complete. SEPA bank withdrawals over €15,000 trigger additional anti-money-laundering checks (statutory obligation for all platforms).
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