Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Klarna UK) Pick polygram.ink (preferred broker) |
91% | 9% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
91% | 9% | 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 |
|---|---|
| El-Sayed <5% | 91% |
| Other | 50% |
| Stevens <5% | 4% |
| El-Sayed 5–10% | 3% |
| El-Sayed 10–15% | 1% |
| Stevens 5–10% | 1% |
| El-Sayed 25%+ | 0% |
| El-Sayed 20–25% | 0% |
| El-Sayed 15–20% | 0% |
| Stevens 10–15% | 0% |
| Stevens 15%+ | 0% |
Market context
Michigan Democrats have now held their 2026 Senate primary, and this market resolves on the vote-share gap between the first and second candidates. With the crowd currently pricing **0%** for the listed YES outcome, the book is signalling that traders see the exact margin bucket as unpriced, illiquid, or already resolved by the way the market has been struck elsewhere rather than as a live consensus on a narrow result.
That caution fits the broader polling and market history. In early July, a Tavern Research survey of 2,211 likely Democratic primary voters found Abdul El-Sayed and Haley Stevens statistically tied, which is the kind of setup that can still produce a wide range of final margins if late deciders cluster.[5] But as the race tightened around a two-candidate contest, prediction markets moved towards El-Sayed as favourite: Polymarket’s winner market put him around 80% against Stevens near 21%, and recent commentary pointed to an El-Sayed lead that had strengthened after debate coverage.[4][7] Separate market snapshots also priced the margin most often in the mid-teens, which is consistent with a clear win rather than a photo finish.[8]
For traders, the practical catalysts were candidate withdrawals, late endorsements, debate clips, polling drops, and turnout assumptions in a low-information primary, because those are the events that reprice both the winner market and the margin buckets. On a payment-friction level, depth in this sort of market usually depends on fresh deposits arriving fast enough to chase a move; faster on-ramps such as card, Klarna-style pay-later flows, or stablecoin funding can matter more than headline conviction when traders are trying to scale into a narrow outcome. SEPA and USDC withdrawals also affect how quickly profits recycle back into new positions, so markets with easier funding and payout rails tend to show tighter spreads and more persistent volume than markets where cash-out friction keeps size on the sidelines.
Methodology
This page compares Michigan Democratic Senate Primary Margin of Victory with a focus on payment rails and deposit friction. Polymarket accepts USDC on Polygon only; Kalshi only ACH/Plaid (US only); Betfair card/SEPA in EU/UK; Manifold no deposit. Polymarket Klarna UK additionally offers Klarna and SOFORT as fiat on-ramps to USDC. Live odds reflect the Polymarket order book.
Resolution & payout
Settlement path determines payout latency. Polymarket settles on-chain (USDC, minutes). Broker frontends like Polymarket Klarna UK add Klarna/SOFORT as fiat withdrawal options with T+1 processing. Kalshi: USD via ACH (T+1 to T+3). Betfair: local currency via card/SEPA (T+1 to T+5).
FAQ
- How does Klarna deposit work on Polymarket Klarna UK?
- You enter the deposit amount in EUR/GBP, choose Klarna as the method, run through Klarna's standard authentication (Pay Later or Direct Bank Transfer), and Polymarket Klarna UK converts internally to USDC for the Polymarket order book. Processing: typically under 30 minutes.
- What does SOFORT cost as a deposit method?
- Polymarket Klarna UK charges no fees for SOFORT. The only cost is the internal FX spread (typically <1%) on EUR→USDC conversion. SOFORT itself has no end-user fees — the platform absorbs acquirer costs.
- Which payment methods are supported?
- Klarna (Pay Now / Pay Later), SOFORT, SEPA bank transfer, credit card (Visa/Mastercard), Apple Pay, Google Pay, and direct USDC deposit on Polygon. Availability depends on your jurisdiction.
- Can I deposit with a credit card?
- Yes, Visa and Mastercard. Credit card deposits carry a ~2.5% acquirer surcharge (standard for card payments). Apple Pay and Google Pay run on the same card rails — same surcharge.
- Are payment details protected?
- Yes. Card and bank details are never stored by Polymarket Klarna UK — they pass directly through PCI-DSS compliant payment service providers (Adyen, Stripe). Polymarket Klarna UK retains only transaction IDs and Klarna reference numbers for reconciliation.
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