MI-13 Democratic Primary Winner

Platform comparison

Market context

The Democratic primary for Michigan’s 13th congressional district is due on 4 August 2026, with the market resolving to the party’s nominee for the House seat unless no nominee is named by 3 November 2026. The current crowd price of 14% for YES implies a relatively low chance that the contract’s named outcome, as framed by the market, is being fully priced in before the settlement window closes.

For traders using bots or conditional orders, the key historical read is that this race has already narrowed materially: reporting and market data now centre on a two-candidate contest between Donavan McKinney and incumbent Shri Thanedar after other contenders were disqualified.[1][7] Public forecasting is split but tilted towards McKinney, with one market feed showing him around 81% and another at 85%, while Thanedar sits well behind.[7][8] Ballotpedia records Thanedar as the 2024 Democratic primary winner in the district, so the relevant baseline is an incumbent defending a seat in a strongly Democratic Detroit-area district rather than an open-seat scramble.[4]

Programmatically, the catalysts to watch are the official candidate lists, any late court or ballot-access updates, and the first authoritative nominee announcement from Democratic sources, because the market resolves on a consensus of official party information rather than media spin.[14][8] AP’s state-primary guidance is the best near-term timing signal for when tabulated results are likely to harden into a winner, and the FEC race page confirms the 2026 House contest is active in the district.[10][3] For automation, the practical trigger set is simple: poll official party and county election pages after polls close, watch for candidate withdrawal or replacement notices, and only treat a nominee as settled once the party’s formal confirmation is visible.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews MI-13 Democratic Primary Winner across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Polymarket Bot UK, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Bot UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Bot UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.