Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Is Kalshi Legal in California) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 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 |
|---|---|
| National Bank Open: Liudmila Samsonova vs Barbora Krejcikova | 100% |
| Completed Match | 100% |
| National Bank Open: Liudmila Samsonova vs Barbora Krejcikova Set 1 Winner | 100% |
| National Bank Open: Liudmila Samsonova vs Barbora Krejcikova Set 2 Winner | 100% |
| National Bank Open: Liudmila Samsonova vs Barbora Krejcikova Set Handicap +/-1.5 | 100% |
| National Bank Open: Liudmila Samsonova vs Barbora Krejcikova Set 2 O/U 8.5 | 100% |
| National Bank Open: Liudmila Samsonova vs Barbora Krejcikova Set 2 O/U 9.5 | 100% |
| National Bank Open: Liudmila Samsonova vs Barbora Krejcikova Set 2 O/U 10.5 | 100% |
| National Bank Open: Liudmila Samsonova vs Barbora Krejcikova Set 1 O/U 8.5 | 0% |
| National Bank Open: Liudmila Samsonova vs Barbora Krejcikova Total Sets: O/U 2.5 | 0% |
| National Bank Open: Liudmila Samsonova vs Barbora Krejcikova Match O/U 21.5 | 0% |
| National Bank Open: Liudmila Samsonova vs Barbora Krejcikova Set 1 O/U 9.5 | 0% |
| National Bank Open: Liudmila Samsonova vs Barbora Krejcikova Match O/U 22.5 | 0% |
| National Bank Open: Liudmila Samsonova vs Barbora Krejcikova Set Handicap +/-1.5 | 0% |
| National Bank Open: Liudmila Samsonova vs Barbora Krejcikova Set 1 O/U 10.5 | 0% |
| National Bank Open: Liudmila Samsonova vs Barbora Krejcikova Match O/U 23.5 | 0% |
Market context
Liudmila Samsonova and Barbora Krejčíková are scheduled to meet in the National Bank Open second round on outdoor hard courts in Toronto, with the market currently pricing the match as a near-certainty in Krejčíková’s favour. That 100% crowd-implied reading is far more aggressive than the underlying tennis records suggest: Tennis.com lists Samsonova as the projected winner at 68%, while TennisTemple notes Krejčíková’s stronger ranking but also records that Samsonova has beaten her in their most recent hard-court meetings in Abu Dhabi, and that Samsonova reached the National Bank Open final in 2023.[1][2]
For market context, the better guide is how quickly tennis markets can swing on health, withdrawal risk, and start-time uncertainty rather than on headline rankings alone. Krejčíková has the higher current ranking in the live listings, but Samsonova’s historical edge in this pairing and her Toronto pedigree mean the spot is not a simple one-way price, especially if either player is managing fatigue or a late schedule change.[2][4][9] Comparable WTA 1000 second-round matches often reprice sharply once official start order, warm-up reports, and any on-day medical or withdrawal news become clear.[6][9]
The regulatory and access angle matters here: if the platform is operating in a German-facing environment, GlüStV restrictions can affect whether participation is treated as a regulated gambling activity, so availability may depend on local licensing and geofencing rather than the tennis itself. In the US, CFTC jurisdiction can matter if the contract is structured as a derivatives-style event market, which affects who can list it and who can trade it. “No-KYC up to $1,500” generally means a smaller user can open and use the market with light identity checks up to that threshold, but it does not remove broader eligibility, payout, AML, or residency checks that can still limit access to this specific event market.[1][2][4]
Methodology
This overview of National Bank Open: Liudmila Samsonova vs Barbora Krejcikova 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 Legal in California has a different geo footprint.
- How are winnings taxed?
- Tax treatment varies by jurisdiction. In most countries, prediction market gains are treated as ordinary income or capital gains. We cannot provide tax advice — consult a tax professional for your specific situation.
- Are prediction markets gambling?
- Legally unclear in most jurisdictions. Some interpretations classify them as wagering (gambling regulation applies), others as derivatives (financial regulation applies). There's no global precedent specifically for on-chain prediction markets.
- 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 Legal in California would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.
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