Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Is Kalshi Legit) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 1st 5 Innings O/U 2.5 | 100% |
| Miami Marlins vs. St. Louis Cardinals | 0% |
| NRFI | 0% |
| Spread -1.5 | 0% |
| O/U 9.5 | 0% |
| 1st 5 Innings Spread -1.5 | 0% |
| 1st 5 Innings Spread -1.5 | 0% |
| 1st 5 Innings Spread -2.5 | 0% |
| 1st 5 Innings Spread -2.5 | 0% |
| 1st 5 Innings O/U 3.5 | 0% |
| 1st 5 Innings O/U 4.5 | 0% |
| 1st 5 Innings O/U 5.5 | 0% |
| 1st 5 Innings O/U 6.5 | 0% |
| Extra Innings | 0% |
| O/U 5.5 | 0% |
| Spread -1.5 | 0% |
| O/U 3.5 | 0% |
| O/U 8.5 | 0% |
| Spread -2.5 | 0% |
| O/U 7.5 | 0% |
| O/U 6.5 | 0% |
| O/U 4.5 | 0% |
Market context
The underlying real-world event is an MLB game between the Miami Marlins and the St. Louis Cardinals, scheduled for 2:15pm ET on 28 June at Busch Stadium in St. Louis, where the market resolves to the winner of the match. The game has already concluded with the Cardinals defeating the Marlins 2–1, confirming the outcome that drives the current 0% YES probability for the Marlins [2]. This result aligns with pre-game analysis favouring the Marlins’ starting pitching advantage due to Phillips on the mound, yet the Cardinals’ offensive execution ultimately prevailed [1].
Historically, similar MLB markets where one team holds a pitching edge but loses due to late-inning scoring have resolved with the same binary certainty, framing the current probability as a definitive reflection of the completed result rather than a speculative forecast. Comparable cases from the 2025 season show that when a game concludes before the settlement window, the probability collapses to 0% or 100% immediately, removing any ambiguity about the outcome [4]. Traders should monitor official MLB final statistics as the primary resolution source, noting that postponed games extend the window but cancellations or ties default to a 50–50 split [2].
Key catalysts include the official announcement of the final score and any post-game regulatory updates regarding German GlüStV compliance or US CFTC reach on prediction markets, which could affect accessibility. The “no-KYC up to $1,500” provision means this market remains accessible to traders without identity verification for stakes within that limit, enhancing liquidity for retail participants [5]. Recent box score data confirms the Cardinals’ 2–1 victory, eliminating any need for further speculation on the match result [6].
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $174K.
Methodology
This overview of Miami Marlins vs. St. Louis Cardinals 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 Is Kalshi Legit?
- 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.
- Can I trade anonymously?
- Pseudonymously, yes — up to the KYC threshold. Is Kalshi Legit stores an email address and wallet addresses rather than a legal name. Over $1,500 lifetime volume triggers KYC, after which identity is no longer anonymous.
- 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.
- What if regulation changes?
- If regulation changes in your jurisdiction (e.g. prediction markets are banned), Is Kalshi Legit would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.
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