Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Trump Prediction) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Cincinnati Open, Qualification: Dusan Lajovic vs Benjamin Bonzi Set 2 O/U 8.5 | 100% |
| Cincinnati Open, Qualification: Dusan Lajovic vs Benjamin Bonzi Set 2 Winner | 100% |
| Cincinnati Open, Qualification: Dusan Lajovic vs Benjamin Bonzi Set 2 O/U 9.5 | 100% |
| Cincinnati Open, Qualification: Dusan Lajovic vs Benjamin Bonzi Set 2 O/U 10.5 | 100% |
| Cincinnati Open, Qualification: Dusan Lajovic vs Benjamin Bonzi Match O/U 22.5 | 99% |
| Cincinnati Open, Qualification: Dusan Lajovic vs Benjamin Bonzi Match O/U 21.5 | 75% |
| Cincinnati Open, Qualification: Dusan Lajovic vs Benjamin Bonzi Total Sets: O/U 2.5 | 75% |
| Cincinnati Open, Qualification: Dusan Lajovic vs Benjamin Bonzi Match O/U 23.5 | 75% |
| Completed Match | 50% |
| Cincinnati Open, Qualification: Dusan Lajovic vs Benjamin Bonzi | 48% |
| Cincinnati Open, Qualification: Dusan Lajovic vs Benjamin Bonzi Set Handicap +/-1.5 | 25% |
| Cincinnati Open, Qualification: Dusan Lajovic vs Benjamin Bonzi Set 1 O/U 8.5 | 0% |
| Cincinnati Open, Qualification: Dusan Lajovic vs Benjamin Bonzi Set 1 Winner | 0% |
| Cincinnati Open, Qualification: Dusan Lajovic vs Benjamin Bonzi Set 1 O/U 9.5 | 0% |
| Cincinnati Open, Qualification: Dusan Lajovic vs Benjamin Bonzi Set 1 O/U 10.5 | 0% |
Market context
Dusan Lajovic and Benjamin Bonzi are scheduled to compete in the Cincinnati Open qualifying draw on 11 August 2026, with the winner advancing to the main draw. The current 44% implied probability for Lajovic reflects a relatively tight matchup, though the Serbian player enters as the slight favourite in market pricing.
Lajovic, ranked around 40th on the ATP tour in mid-2026, has established himself as a consistent qualifier and main-draw competitor at Masters 1000 events. Bonzi, a French player typically ranked in the 60–80 range, has shown improvement in recent seasons but remains less established at this level. Historical head-to-head records and recent form on hard courts—Cincinnati's surface—matter considerably. Lajovic's experience in qualifying rounds at major tournaments and his baseline consistency have historically favoured him in such matchups, though Bonzi's aggressive style can disrupt rhythm-dependent opponents.
Traders should monitor both players' recent tournament results and any injury reports in the week preceding 11 August. Surface-specific form matters: Lajovic typically performs better on hard courts than clay, whilst Bonzi's results vary more widely. Weather conditions at the Cincinnati venue may also influence play style—heat and humidity favour aggressive, shorter-point tennis, which could benefit Bonzi. The settlement window closes on 18 August, allowing seven days for the match to be completed; any cancellation or extended delay beyond that triggers a 50-50 resolution.
Methodology
This page tracks Cincinnati Open, Qualification: Dusan Lajovic vs Benjamin Bonzi across four political prediction venues. Live odds come from the Polymarket order book (the deepest political prediction-market book). Kalshi is the CFTC-regulated US alternative, Betfair the established UK sports-exchange with politics markets, Manifold the open play-money variant. For users geo-blocked from Polymarket directly, brokers like Trump Prediction provide a 0%-fee route into the same order book.
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.
- 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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