Market statistics
- Total volume
- $155K
- 24h volume
- $155K
- Open interest
- $95K
Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
0% | 100% | 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 → |
Available prediction outcomes (10)
Sorted by descending live probability. Click any outcome to trade it on PolyGram.
Market context
The Birmingham tennis tournament will host a first-round match between German player Tatjana Maria and Spanish player Rebeka Masarova on 4 June 2026. Maria, aged 37, has competed sporadically on the WTA tour in recent seasons following her return from maternity leave; Masarova, 25, is an emerging player with limited top-tier match experience. The 0% implied probability reflects either minimal trading volume or strong consensus that the market lacks sufficient liquidity to attract positions at current odds. Historical precedent from grass-court tournaments shows that unseeded players in early rounds often see compressed odds when one competitor holds recent tour activity and the other remains relatively unproven at that level.
Traders monitoring this market should track official Birmingham tournament draw confirmations and any late withdrawals announced through the WTA website. Grass-court preparation tournaments frequently see schedule adjustments due to weather or player injury. Maria's recent match record and ranking points will signal her competitive fitness; any announcement of her withdrawal or Masarova's advancement through qualifying would trigger immediate resolution conditions. The settlement window closes 11 June 2026, allowing a seven-day buffer beyond the scheduled date for completion or tie-break resolution.
From a regulatory standpoint, this prediction market operates under differing frameworks depending on trader jurisdiction. German traders face GlüStV (gambling licensing) requirements for sports-outcome wagering. US traders encounter CFTC oversight if the platform qualifies as a derivatives exchange; most no-KYC markets accepting positions under $1,500 USD per user operate under exemptions for small-value contracts. Traders should verify their local regulatory status before participation.
Methodology
This overview of Birmingham: Tatjana Maria vs Rebeka Masarova 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
Resolution source: This market settles from the official publication at https://www.wtatennis.com/scores. A proposer submits the result to the UMA Optimistic Oracle on Polygon, the two-hour challenge window opens, and the smart contract pays out in USDC.
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
- 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.
- Can I trade anonymously?
- Pseudonymously, yes — up to the KYC threshold. PolyGram 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. PolyGram exports a full transaction history (CSV/PDF) for tax reporting. In an audit you'll need to present these documents.
- 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).
Trade Birmingham: Tatjana Maria vs Rebeka Masarova on PolyGram
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