Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Election Predictions UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
100% | 0% | 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 |
|---|---|
| Monterrey Open: Maja Chwalinska vs Alycia Parks Set 1 Winner | 100% |
| Monterrey Open: Maja Chwalinska vs Alycia Parks Set 1 O/U 8.5 | 100% |
| Monterrey Open: Maja Chwalinska vs Alycia Parks Total Sets: O/U 2.5 | 74% |
| Monterrey Open: Maja Chwalinska vs Alycia Parks Match O/U 21.5 | 65% |
| Monterrey Open: Maja Chwalinska vs Alycia Parks Match O/U 22.5 | 63% |
| Completed Match | 50% |
| Monterrey Open: Maja Chwalinska vs Alycia Parks Match O/U 23.5 | 50% |
| Monterrey Open: Maja Chwalinska vs Alycia Parks Game Spread +/-3.5 | 10% |
| Monterrey Open: Maja Chwalinska vs Alycia Parks | 5% |
| Monterrey Open: Maja Chwalinska vs Alycia Parks Set Handicap +/-1.5 | 4% |
| Monterrey Open: Maja Chwalinska vs Alycia Parks Set 2 O/U 8.5 | 0% |
| Monterrey Open: Maja Chwalinska vs Alycia Parks Set 2 Winner | 0% |
| Monterrey Open: Maja Chwalinska vs Alycia Parks Set 2 O/U 9.5 | 0% |
| Monterrey Open: Maja Chwalinska vs Alycia Parks Set 1 O/U 9.5 | 0% |
| Monterrey Open: Maja Chwalinska vs Alycia Parks Set 2 O/U 10.5 | 0% |
| Monterrey Open: Maja Chwalinska vs Alycia Parks Set 1 O/U 10.5 | 0% |
Market context
Based on real-money crowd forecasting, monterrey open: maja chwalinska vs alycia parks stands at 100% likelihood according to current market consensus. This market refers to the tennis match between Maja Chwalinska and Alycia Parks in the Monterrey Open, originally scheduled for August 26, 2026 at 12:00PM ET. This market will res…
Methodology
Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Monterrey Open: Maja Chwalinska vs Alycia Parks plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.
Resolution & payout
For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.
UK Frequently Asked Questions
- How accurate are political prediction markets?
- Historically more accurate than polls. Polymarket's Brier score on US 2024 elections was ~0.11 — better than 538 (~0.14) and every mainstream poll. Markets aggregate information with real skin in the game.
- What resolution source is used for elections?
- Polymarket defines the source per contract — usually Associated Press (AP Race Call), Reuters or the official electoral commission. The source is stated in contract details before the market opens.
- Which platform has the deepest political liquidity?
- Polymarket — by far. US 2024 presidential volume was ~$3.5B vs Kalshi (~$200M) and Betfair (~$120M). Where Polymarket is geo-blocked, brokers like Election Predictions UK route into the same order book at 0% fees.
- Are political prediction markets legal in my country?
- It varies. They sit in legal gray areas in most jurisdictions. Polymarket is geo-blocked from US/UK/EU; some broker frontends have a different geo footprint. Trade only with capital you can afford to lose, and only if you understand the legal status in your jurisdiction.
- Are UK election prediction markets available from the UK?
- Yes. Betfair Exchange and Smarkets offer UKGC-regulated UK election markets (seat counts, party share, constituency results). Polymarket also lists UK election contracts with deeper global liquidity. Betfair winnings are typically tax-free for UK individuals; Polymarket profits are subject to HMRC CGT.
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