Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Klarna UK) Pick polygram.ink (preferred broker) |
37% | 63% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
37% | 63% | 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 |
|---|---|
| None | 37% |
| IA | 10% |
| IA, KS | 6% |
| All 7 | 4% |
| KS | 3% |
| AK, IA, KS, ME, OH, TX | 2% |
| AK, IA, KS | 2% |
| IA, KS, ME | 2% |
| AK, IA | 2% |
| AK | 2% |
| ME | 2% |
| AK, IA, KS, ME, MI, OH | 1% |
| AK, IA, KS, MI, OH, TX | 1% |
| IA, KS, ME, MI, OH, TX | 1% |
| AK, IA, KS, ME, OH | 1% |
| AK, IA, KS, ME, TX | 1% |
| AK, IA, KS, OH, TX | 1% |
| IA, KS, ME, OH, TX | 1% |
| IA, KS, MI, OH, TX | 1% |
| AK, IA, KS, ME | 1% |
| AK, IA, KS, OH | 1% |
| AK, IA, KS, TX | 1% |
| AK, KS, OH, TX | 1% |
| IA, KS, ME, OH | 1% |
| IA, KS, ME, TX | 1% |
| IA, KS, MI, OH | 1% |
| IA, KS, OH, TX | 1% |
| AK, IA, ME | 1% |
| IA, KS, MI | 1% |
| IA, KS, OH | 1% |
| IA, KS, TX | 1% |
| AK, KS | 1% |
| IA, ME | 1% |
| IA, MI | 1% |
| IA, OH | 1% |
| IA, TX | 1% |
| KS, OH | 1% |
| MI | 1% |
| OH | 1% |
| TX | 1% |
| AK, IA, KS, ME, MI, TX | 0% |
| AK, IA, ME, MI, OH, TX | 0% |
| AK, KS, ME, MI, OH, TX | 0% |
| AK, IA, KS, ME, MI | 0% |
| AK, IA, KS, MI, OH | 0% |
| AK, IA, KS, MI, TX | 0% |
| AK, IA, ME, MI, OH | 0% |
| AK, IA, ME, MI, TX | 0% |
| AK, IA, ME, OH, TX | 0% |
| AK, IA, MI, OH, TX | 0% |
| AK, KS, ME, MI, OH | 0% |
| AK, KS, ME, MI, TX | 0% |
| AK, KS, ME, OH, TX | 0% |
| AK, KS, MI, OH, TX | 0% |
| AK, ME, MI, OH, TX | 0% |
| IA, KS, ME, MI, OH | 0% |
| IA, KS, ME, MI, TX | 0% |
| IA, ME, MI, OH, TX | 0% |
| KS, ME, MI, OH, TX | 0% |
| AK, IA, KS, MI | 0% |
| AK, IA, ME, MI | 0% |
| AK, IA, ME, OH | 0% |
| AK, IA, ME, TX | 0% |
| AK, IA, MI, OH | 0% |
| AK, IA, MI, TX | 0% |
| AK, IA, OH, TX | 0% |
| AK, KS, ME, MI | 0% |
| AK, KS, ME, OH | 0% |
| AK, KS, ME, TX | 0% |
| AK, KS, MI, OH | 0% |
| AK, KS, MI, TX | 0% |
| AK, ME, MI, OH | 0% |
| AK, ME, MI, TX | 0% |
| AK, ME, OH, TX | 0% |
| AK, MI, OH, TX | 0% |
| IA, KS, ME, MI | 0% |
| IA, KS, MI, TX | 0% |
| IA, ME, MI, OH | 0% |
| IA, ME, MI, TX | 0% |
| IA, ME, OH, TX | 0% |
| IA, MI, OH, TX | 0% |
| KS, ME, MI, OH | 0% |
| KS, ME, MI, TX | 0% |
| KS, ME, OH, TX | 0% |
| KS, MI, OH, TX | 0% |
| ME, MI, OH, TX | 0% |
| AK, IA, MI | 0% |
| AK, IA, OH | 0% |
| AK, IA, TX | 0% |
| AK, KS, ME | 0% |
| AK, KS, MI | 0% |
| AK, KS, OH | 0% |
| AK, KS, TX | 0% |
| AK, ME, MI | 0% |
| AK, ME, OH | 0% |
| AK, ME, TX | 0% |
| AK, MI, OH | 0% |
| AK, MI, TX | 0% |
| AK, OH, TX | 0% |
| IA, ME, MI | 0% |
| IA, ME, OH | 0% |
| IA, ME, TX | 0% |
| IA, MI, OH | 0% |
| IA, MI, TX | 0% |
| IA, OH, TX | 0% |
| KS, ME, MI | 0% |
| KS, ME, OH | 0% |
| KS, ME, TX | 0% |
| KS, MI, OH | 0% |
| KS, MI, TX | 0% |
| KS, OH, TX | 0% |
| ME, MI, OH | 0% |
| ME, MI, TX | 0% |
| ME, OH, TX | 0% |
| MI, OH, TX | 0% |
| AK, ME | 0% |
| AK, MI | 0% |
| AK, OH | 0% |
| AK, TX | 0% |
| KS, ME | 0% |
| KS, MI | 0% |
| KS, TX | 0% |
| ME, MI | 0% |
| ME, OH | 0% |
| ME, TX | 0% |
| MI, OH | 0% |
| MI, TX | 0% |
| OH, TX | 0% |
Market context
Which Senate Swing States will Republicans win?. The market is currently pricing the outcome at 2% YES, meaning crowd-implied probability sits at that level. Settlement is scheduled for 2026-11-03T23:59:00Z. Unlike a sportsbook, the price you see is set by buyers and sellers competing in a live order book — there is no house edge or bookmaker margin to fade.
Political prediction markets price specific outcomes — a candidate winning, a bill passing, an executive action announced — based on real capital from informed traders rather than survey response rates. They tend to update faster than polls when a discrete event lands and slower in the absence of news.
Watch for the underlying catalysts that move this category: each official announcement, dataset release, or scheduled milestone generally produces a step change in the implied probability. Trades execute instantly on Polygon, and shares pay $1 each at resolution if your side wins.
Methodology
This page compares Which Senate Swing States will Republicans win? (Build Your Map) 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).
UK Frequently Asked Questions
- 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.
- 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 UK traders use Klarna to deposit on Polymarket?
- Polymarket does not natively accept Klarna. To fund a Polymarket account from the UK, you must first purchase USDC via a crypto exchange (Coinbase UK, Kraken) or Revolut, then transfer to a Polygon-compatible wallet. Some third-party on-ramps (MoonPay, Transak) accept UK debit cards and may support Klarna buy-now-pay-later for crypto purchases.
- What payment methods can UK users use for Polymarket?
- UK traders typically use: (1) Coinbase UK or Kraken — buy USDC with GBP debit card or bank transfer; (2) Revolut — buy crypto and send to wallet; (3) MoonPay or Transak — Visa/Mastercard UK debit card directly to USDC on Polygon. Standard GBP-to-USDC conversion fees range from 0.5–2.5%.
- How long do Polymarket withdrawals take for UK users?
- Polymarket withdrawals to your Polygon wallet are instant (on-chain). Converting USDC back to GBP via Coinbase UK or Kraken typically takes 1–3 business days for bank transfer, or near-instant for Revolut. Polygon gas fees are minimal (<$0.01 per transaction).
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