Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Tax UK) Pick polygram.ink (preferred broker) |
83% | 17% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
83% | 17% | 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 |
|---|---|
| Donavan McKinney | 83% |
| Shri Thanedar | 18% |
| Shelby Campbell | 0% |
| Anthony Carbonaro | 0% |
| Nazmul Hassan | 0% |
| Other | 0% |
| Person A | 0% |
| Person B | 0% |
| Person C | 0% |
| Person D | 0% |
| Person E | 0% |
| Person F | 0% |
| Person G | 0% |
| Person H | 0% |
| Person I | 0% |
| Person J | 0% |
| Person K | 0% |
| Person L | 0% |
| Person M | 0% |
| Person N | 0% |
| Person O | 0% |
| Person P | 0% |
| Person Q | 0% |
| Person R | 0% |
| Person S | 0% |
| Person T | 0% |
| Person U | 0% |
| Person V | 0% |
| Person W | 0% |
| Person X | 0% |
| Person Y | 0% |
| Person Z | 0% |
Market context
The Democratic nominee for Michigan’s 13th congressional district will be chosen in the August 4, 2026 primary, with the winner going on to the general election unless the party’s nomination process changes before then.[3][10] In market terms, the current 19% implied probability for a YES outcome sits well below the best-known public and trading indicators, which have recently shown a two-candidate race between Shri Thanedar and Donavan McKinney rather than an open field.[1][3][16]
That pricing is easier to read against the district’s recent history and the shape of the contest. Thanedar is the sitting member and won the seat’s 2024 Democratic primary, which usually gives an incumbent a structural base, but fresh reporting says this cycle has narrowed into a direct fight after other hopefuls were disqualified.[2][3][5] Contemporary odds trackers have alternated between a McKinney lead and a Thanedar lead, which suggests the market is reacting to campaign news rather than a settled delegate-count style outcome.[1][5]
For accessibility, the regulatory picture matters as much as the politics. If the platform offers *no-KYC up to $1,500*, that typically means smaller trades can be made with lighter identity checks, which broadens access for casual users but still leaves larger activity subject to verification thresholds. From a German perspective, the GlüStV framework is relevant because political betting products can be treated as gambling-style offerings, so local availability and tax treatment may differ sharply from the US, where the CFTC’s reach is part of the background risk for event-contract platforms even when the underlying race is purely electoral. Traders should watch official candidate listings, any late withdrawals or disqualifications, and the Democratic Party’s own nominee announcements, because the market resolves on the party nominee by the election deadline, with “Other” only if no nominee is announced by 3 November 2026.[10][3]
Methodology
This overview of MI-13 Democratic Primary Winner 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
- 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. Polymarket Tax UK 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. 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.
- What if regulation changes?
- If regulation changes in your jurisdiction (e.g. prediction markets are banned), Polymarket Tax UK would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.
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