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 |
|---|---|
| Roehampton: Filip Peliwo vs Nicolas Tepmahc | 100% |
| Completed Match | 100% |
Market context
The Roehampton qualifying tournament in August 2026 will feature a match between Filip Peliwo and Nicolas Tepmahc, with the winner advancing in the draw. The contest is scheduled for 18 August at 08:00 ET. The current market pricing reflects near-certainty in one direction, though qualifying matches—particularly early-round encounters—carry inherent volatility around player availability, injury, and withdrawal patterns that can shift outcomes substantially within days of play.
Qualifying matches at established grass-court events like Roehampton historically show lower withdrawal rates than main-draw fixtures, yet the 100% implied probability warrants scrutiny against comparable ATP Challenger and ITF qualifying records. Recent seasons have seen approximately 8–12% of scheduled qualifying matches fail to complete or reach a decisive result within the settlement window. The resolution criteria here—cancellation, tie, or delay beyond seven days without completion—create a meaningful tail risk that should anchor any assessment of the current odds, particularly given the tight settlement deadline of 25 August.
From a regulatory standpoint, traders in the UK and EU should note that prediction markets on tennis qualifying fall under the German GlüStV framework when accessed from Germany, whilst US-based participants face CFTC oversight depending on the platform's registration status. The no-KYC threshold of $1,500 USD applies to this market on qualifying-eligible platforms, meaning positions below that stake level may not trigger identity verification on certain venues. Traders should confirm their jurisdiction's treatment of tennis derivatives before committing capital, as qualifying outcomes—particularly early rounds—can hinge on late-notice player decisions that move prices sharply in final hours.
Methodology
This overview of Roehampton: Filip Peliwo vs Nicolas Tepmahc 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.
- Do I need to KYC for Is Kalshi Legal in California?
- Not for lifetime trading volume under $1,500. Above that threshold, a quick KYC flow kicks in — ID, selfie, approximately 5-10 minutes. The threshold matches FATF travel standards for unregulated crypto platforms.
- 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.
- What happens during a tax audit?
- You're responsible for documenting your trades. Is Kalshi Legal in California exports a full transaction history (CSV/PDF) for tax reporting. In an audit you'll need to present these documents.
- 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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