Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Election Predictions UK) Pick polygram.ink (preferred broker) |
50% | 50% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
50% | 50% | 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 |
|---|---|
| Quebec City: Alexei Popyrin vs Hugo Gaston Set 2 Winner | 50% |
| Quebec City: Alexei Popyrin vs Hugo Gaston Set 2 O/U 8.5 | 50% |
| Quebec City: Alexei Popyrin vs Hugo Gaston Set 1 O/U 8.5 | 50% |
| Quebec City: Alexei Popyrin vs Hugo Gaston Set 1 Winner | 50% |
| Quebec City: Alexei Popyrin vs Hugo Gaston Total Sets: O/U 2.5 | 50% |
| Quebec City: Alexei Popyrin vs Hugo Gaston Match O/U 21.5 | 50% |
| Quebec City: Alexei Popyrin vs Hugo Gaston Set Handicap +/-1.5 | 50% |
| Quebec City: Alexei Popyrin vs Hugo Gaston Set 1 O/U 9.5 | 50% |
| Quebec City: Alexei Popyrin vs Hugo Gaston Match O/U 22.5 | 50% |
| Quebec City: Alexei Popyrin vs Hugo Gaston Set 2 O/U 9.5 | 50% |
| Quebec City: Alexei Popyrin vs Hugo Gaston Set Handicap +/-1.5 | 50% |
| Quebec City: Alexei Popyrin vs Hugo Gaston Set 1 O/U 10.5 | 50% |
| Quebec City: Alexei Popyrin vs Hugo Gaston Match O/U 23.5 | 50% |
| Quebec City: Alexei Popyrin vs Hugo Gaston Set 2 O/U 10.5 | 50% |
| Quebec City: Alexei Popyrin vs Hugo Gaston | 0% |
| Completed Match | 0% |
Market context
The ATP 250 event in Quebec City is scheduled to feature Australian Alexei Popyrin against French qualifier Hugo Gaston on 20 August 2026. Popyrin, ranked in the top 30, enters as the clear favourite based on recent form and seeding. Gaston, a former French Open semi-finalist in 2021, has struggled with consistency and injury in recent seasons, though he retains the technical skill to trouble any opponent on a given day. The market's 0% implied probability for Popyrin suggests traders are either heavily confident in his victory or the market has insufficient liquidity at present.
Historical precedent shows that matches between substantially ranked players and qualifiers typically favour the seeded competitor at roughly 75–80% win rates, though upsets occur regularly enough to warrant non-trivial probability assignments. Gaston's previous performances against top-50 players demonstrate occasional competitive moments, particularly on faster courts where his serve and slice can create tactical problems. However, Popyrin's recent trajectory and physical attributes—power and court coverage—align with the profile of players who tend to dominate such matchups.
Traders should monitor official ATP draw confirmations and any late injury withdrawals in the week preceding the tournament. Weather conditions in Quebec City during late August, which can favour serve-dominant players, may subtly shift match dynamics. Recent ATP rankings updates and either player's performance at preceding events will provide concrete form indicators. The settlement window closes 27 August, allowing three days beyond the scheduled date for completion, which substantially reduces the likelihood of a 50-50 resolution on scheduling grounds.
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 Quebec City: Alexei Popyrin vs Hugo Gaston 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
- 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.
- How fast do political markets react to news?
- High-liquidity markets move within seconds to minutes. A Trump tweet on the economy can shift the "Trump 2024" market 2-5 points before mainstream media has written anything.
- 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.
- Why do Polymarket and Kalshi differ on elections?
- Kalshi must follow CFTC compliance — strict definitions, clear resolution sources, US citizens only with KYC. Polymarket operates globally without CFTC oversight — deeper liquidity, but also higher regulatory risk.
- 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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