Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Qué Es) Pick polygram.ink (preferred broker) |
71% | 29% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
71% | 29% | 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 |
|---|---|
| Peggy Flanagan | 71% |
| Angie Craig | 31% |
| Melisa López Franzen | 0% |
| Ilhan Omar | 0% |
| Keith Ellison | 0% |
| Melisa Hortman | 0% |
| Jacob Frey | 0% |
| Betty McCollum | 0% |
| Steve Simon | 0% |
| David Wellstone | 0% |
| Candidate A | 0% |
| Candidate B | 0% |
| Candidate C | 0% |
| Candidate D | 0% |
| Candidate E | 0% |
| Candidate F | 0% |
| Candidate G | 0% |
| Candidate H | 0% |
| Candidate I | 0% |
| Candidate J | 0% |
| Candidate K | 0% |
| Candidate L | 0% |
| Candidate M | 0% |
| Candidate N | 0% |
| Candidate O | 0% |
| Other | 0% |
Market context
Polymarket’s contract is trading at a **71%** implied chance that the Democratic nominee for Minnesota’s next Senate contest is correctly picked by the current market, with settlement tied to the party’s first official results announcement or an overwhelming reporting consensus. Because the contract is backed by USDC on Polygon and settles through conditional tokens, the practical question for users is whether the market is already pricing in the party’s favourite, or still leaving room for a late shift in turnout, endorsements, or ballot logistics.
The current price sits in a race that has narrowed around Angie Craig and Peggy Flanagan, a comparison that matters because open-seat primaries often move with money, institutional support, and candidate credibility rather than simple name recognition. Ballotpedia lists six Democrats on the primary ballot, but recent coverage describes Craig and Flanagan as the clear frontrunners, with Craig leading fundraising and endorsements while Flanagan has consolidated progressive and establishment support in different lanes.[1][3][5][6][8][9] That makes 71% look less like a certainty than a market judgement that one of the two main contenders is highly likely to prevail, even if the exact ordering is still contestable.[15][16]
For traders, the main catalysts are the primary itself on 11 August, any final party statements, and the first credible vote call from Minnesota Democrats, which will matter more here than the general-election field.[2] Late moves could come from turnout patterns in the Twin Cities metro, the effect of any last-minute candidate withdrawals, and whether post-primary reporting is clean enough for the market to resolve quickly; in past Minnesota statewide primaries, the winning margin has often been decisive once official returns start landing.[2]
Methodology
This page reviews Pronóstico: Minnesota Democratic Senate 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 Qué Es, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
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 Qué Es. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- 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.
- 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.
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