Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Is Kalshi Legit) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| National Bank Open: Jacob Fearnley vs Adrian Mannarino | 100% |
| Completed Match | 100% |
| National Bank Open: Jacob Fearnley vs Adrian Mannarino Set 1 Winner | 100% |
| National Bank Open: Jacob Fearnley vs Adrian Mannarino Set 2 O/U 8.5 | 100% |
| National Bank Open: Jacob Fearnley vs Adrian Mannarino Set 2 Winner | 100% |
| National Bank Open: Jacob Fearnley vs Adrian Mannarino Set 1 O/U 8.5 | 100% |
| National Bank Open: Jacob Fearnley vs Adrian Mannarino Set 2 O/U 9.5 | 100% |
| National Bank Open: Jacob Fearnley vs Adrian Mannarino Match O/U 21.5 | 100% |
| National Bank Open: Jacob Fearnley vs Adrian Mannarino Set Handicap +/-1.5 | 100% |
| National Bank Open: Jacob Fearnley vs Adrian Mannarino Set 1 O/U 9.5 | 100% |
| National Bank Open: Jacob Fearnley vs Adrian Mannarino Match O/U 22.5 | 100% |
| National Bank Open: Jacob Fearnley vs Adrian Mannarino Set 1 O/U 10.5 | 100% |
| National Bank Open: Jacob Fearnley vs Adrian Mannarino Total Sets: O/U 2.5 | 0% |
| National Bank Open: Jacob Fearnley vs Adrian Mannarino Set 2 O/U 10.5 | 0% |
| National Bank Open: Jacob Fearnley vs Adrian Mannarino Set Handicap +/-1.5 | 0% |
| National Bank Open: Jacob Fearnley vs Adrian Mannarino Match O/U 23.5 | 0% |
Market context
Jacob Fearnley’s meeting with Adrian Mannarino at the National Bank Open is a first-round ATP Masters 1000 match on outdoor hard courts in Montreal, and the market resolves on who advances, not on set score or margin. The current crowd-implied probability of 100% YES is therefore a statement of certainty around the match outcome, but the settlement rule still matters: if the tie is cancelled, tied, or delayed beyond seven days without a winner, the market goes 50-50 instead. The event page lists Fearnley at 25 and Mannarino at 38, with Mannarino’s ranking advantage offset by Fearnley being the player some pre-match models and previews leaned towards.[1][2][14]
Comparable read-throughs suggest this is not a straightforward favourite-versus-underdog spot. Head-to-head records shown by tennis previews indicate Fearnley has already beaten Mannarino, while one live listing also shows the pair as roughly level in projected win terms despite the ranking gap.[4][15][3] That kind of split is the main historical frame for a market sitting at a hard 100% price: it often reflects a view that the listed side is overwhelmingly likely to advance, but the tennis context still allows for volatility if the match is interrupted, rescheduled, or remains unfinished.[2][5]
For accessibility, “no-KYC up to $1,500” means a user may be able to participate without submitting identity documents until cumulative activity crosses that threshold, but the exact onboarding limits depend on the platform’s policies and jurisdictional checks. The broader regulatory backdrop matters too: German bettors face the GlüStV framework governing legal online gambling access, while US-facing prediction market operators can come under CFTC scrutiny if contracts are viewed as event-based derivatives rather than ordinary sportsbook wagers. In practical terms, traders should watch official ATP/tournament scheduling, any court or weather delays in Montreal, and whether the match is actually started and completed before the settlement window closes.[2][5][8]
Methodology
This overview of National Bank Open: Jacob Fearnley vs Adrian Mannarino reviews the four comparable platforms from a regulatory perspective: which is accessible in your jurisdiction, where KYC kicks in, how the platform is classified by your country of residence. Live probability is the Polymarket mid; comparison columns show regulatory status, KYC thresholds and settlement options for each platform.
Resolution & payout
On Polymarket, resolution runs on-chain via UMA Optimistic Oracle. USDC payout is instant and automatic, with no KYC. Tax treatment depends on your jurisdiction — in the US, gains are usually ordinary income; in the UK, often capital gains. Consult a tax professional for your situation.
FAQ
- Is Polymarket legal in my country?
- Polymarket is geo-blocked in the US/UK/EU. Actual usage via the Polymarket interface is not possible there. The legal status itself varies — many countries treat prediction markets as a gray area. Is Kalshi Legit has a different geo footprint.
- Can I trade anonymously?
- Pseudonymously, yes — up to the KYC threshold. Is Kalshi Legit stores an email address and wallet addresses rather than a legal name. Over $1,500 lifetime volume triggers KYC, after which identity is no longer anonymous.
- What happens during a tax audit?
- You're responsible for documenting your trades. Is Kalshi Legit exports a full transaction history (CSV/PDF) for tax reporting. In an audit you'll need to present these documents.
- Is there a withdrawal cap?
- No platform-side cap. You can withdraw any amount provided KYC is complete. SEPA bank withdrawals over €15,000 trigger additional anti-money-laundering checks (statutory obligation for all platforms).
- What if regulation changes?
- If regulation changes in your jurisdiction (e.g. prediction markets are banned), Is Kalshi Legit would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.
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