Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Is Kalshi Legal in California) Pick polygram.ink (preferred broker) |
28% | 72% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
28% | 72% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Go to the live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Go to the live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Go to the live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Go to the live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| James Wood | 28% |
| Josh Jung | 25% |
| Kevin McGonigle | 18% |
| Willy Adames | 10% |
| Matt Olson | 10% |
| Bobby Witt Jr. | 8% |
| Freddie Freeman | 7% |
| Ernie Clement | 5% |
| Ezequiel Tovar | 4% |
| Nico Hoerner | 3% |
| Mauricio Dubón | 3% |
| Taylor Ward | 2% |
| Bo Bichette | 2% |
| Bryan Reynolds | 2% |
| Francisco Lindor | 2% |
| Vladimir Guerrero Jr. | 2% |
| Gavin Sheets | 1% |
| Casey Schmitt | 1% |
| Pete Alonso | 1% |
| Jarren Duran | 1% |
| Maikel Garcia | 1% |
| Pete Crow-Armstrong | 1% |
| Salvador Perez | 1% |
| Bryce Harper | 1% |
| Ian Happ | 1% |
| Juan Soto | 1% |
| Andy Pages | 1% |
| George Springer | 1% |
| Corbin Carroll | 1% |
| Riley Greene | 1% |
| Colt Keith | 0% |
| Christian Walker | 0% |
| Adley Rutschman | 0% |
| Rhys Hoskins | 0% |
| Gabriel Moreno | 0% |
| Brent Rooker | 0% |
| CJ Abrams | 0% |
| Shohei Ohtani | 0% |
| Aaron Judge | 0% |
| Nick Kurtz | 0% |
| Yordan Alvarez | 0% |
| Player B | 0% |
| Player C | 0% |
| Player D | 0% |
| Player E | 0% |
| Player F | 0% |
| Player G | 0% |
| Player H | 0% |
| Player I | 0% |
| Player J | 0% |
| Player K | 0% |
| Player L | 0% |
| Player M | 0% |
| Player N | 0% |
| Player O | 0% |
| Player P | 0% |
| Player Q | 0% |
| Player R | 0% |
| Player S | 0% |
| Player T | 0% |
| Player U | 0% |
| Player V | 0% |
| Player W | 0% |
| Player X | 0% |
| Player Y | 0% |
| Player Z | 0% |
| Player AA | 0% |
| Player AB | 0% |
| Player AC | 0% |
| Player AD | 0% |
| Player AE | 0% |
| Player AF | 0% |
| Player AG | 0% |
| Player AH | 0% |
| Player AI | 0% |
| Player AJ | 0% |
| Player AK | 0% |
| Player AL | 0% |
| Player AM | 0% |
| Player AN | 0% |
| Player AO | 0% |
| Player AP | 0% |
| Player AQ | 0% |
| Player AR | 0% |
| Player AS | 0% |
| Player AT | 0% |
| Player AU | 0% |
| Player AV | 0% |
| Player AW | 0% |
| Player AX | 0% |
| Other | 0% |
Market context
The 2026 MLB regular season will determine which player accumulates the most doubles over the course of 162 games. The doubles leader typically finishes between 35 and 50 doubles per season in recent years; Aaron Judge led MLB in 2024 with 41 doubles, whilst Mookie Betts and Kyle Schwarber have regularly competed for the title. The 2% crowd probability suggests traders view this outcome as highly unlikely to occur under the specific settlement conditions outlined, which incorporate batting average and slugging percentage as tiebreakers aligned with official MLB records.
Historically, the doubles leader has been difficult to predict with precision because the statistic correlates with both contact rate and playing time rather than elite skill alone. Veterans with consistent at-bats—such as Jose Altuve, Freddie Freeman, and Juan Soto—have dominated this category across recent seasons. The low implied probability reflects uncertainty about which established hitter will maintain sufficient plate appearances and doubles production throughout 2026, compounded by the possibility of injury, trade, or unexpected performance decline.
Traders should monitor spring training performance reports and opening-day roster announcements in March 2026, as these will clarify which players are positioned for full-season roles. Mid-season trade deadline activity in July will also shift expectations if contending teams acquire or lose key contact hitters. Regular MLB statistical updates through August and September will provide real-time tracking of the leader, though the outcome typically remains competitive until the final weeks of the season.
Methodology
This overview of MLB: Doubles Leader 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 Legal in California?
- 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 Legal in California 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.
- What happens during a tax audit?
- You're responsible for documenting your trades. Is Kalshi Legal in California exports a full transaction history (CSV/PDF) for tax reporting. In an audit you'll need to present these documents.
- 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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