Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket Scam? Pick polygram.ink |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Polymarket Scam? → |
Polymarket polymarket.com |
0% | 100% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Polymarket Scam? → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Polymarket Scam? → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Polymarket Scam? → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Polymarket Scam? → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on Polymarket Scam?.
Active sub-markets
| Bad Homburg Open: Venus Williams vs Irina-Camelia Begu | 0% Venus Williams | 100% Irina-Camelia Begu |
| Completed Match | 100% YES | 0% NO |
| Bad Homburg Open: Venus Williams vs Irina-Camelia Begu Match O/U 22.5 | 100% Over | 0% Under |
| Bad Homburg Open: Venus Williams vs Irina-Camelia Begu Match O/U 23.5 | 100% Over | 0% Under |
| Bad Homburg Open: Venus Williams vs Irina-Camelia Begu Set 2 O/U 8.5 | 100% Over | 0% Under |
| Bad Homburg Open: Venus Williams vs Irina-Camelia Begu Set 1 Winner | 0% Williams | 100% Begu |
Market context
Polymarket is pricing the Venus Williams–Irina-Camelia Begu match at **0% YES** right now, so the contract is effectively treating Williams as a very low-probability winner on the current order book. The token settles through Polymarket’s usual on-chain plumbing: USDC on Polygon, with outcome exposure packaged into conditional tokens and resolved off official WTA match statistics. The market also has a strict fallback: if the first set is not completed, or if the match is not played or is pushed more than seven days without play beginning, it resolves 50-50 instead of to either player.[1]
The current price lines up with the usual way traders read a late-stage WTA matchup when one player is markedly favoured by tennis-market models and live projections. Tennis.com lists Begu as the projected winner at 83%, while ESPN’s scoreboard shows the pairing as an active women’s singles event in Bad Homburg.[2][7] That sort of spread matters on Polymarket because the contract is not a generic “who is better” bet: it pays on the official advancement result, so any edge depends on match completion, not reputation or rankings alone. Comparable cases in tennis markets often see the market collapse towards the shorter-priced player once the draw, start time and official lineups are locked in, but pricing can still move sharply if there is a withdrawal, walkover or in-play interruption before the first set is finished.[1][2]
For traders, the main catalysts are procedural rather than dramatic: whether the WTA confirms the match is played as scheduled, whether either player withdraws, and whether rain or scheduling congestion forces a delay. Bad Homburg’s own tournament information shows qualifying and court usage tied to tightly scheduled June sessions, which can create knock-on effects if earlier matches run long.[3] Once play starts, the settlement rule becomes binary: if the match produces an official winner, that player resolves the market; if it does not begin cleanly or is abandoned before the first set is completed, the 50-50 fallback takes over.[1]
Methodology
We track Bad Homburg Open: Venus Williams vs Irina-Camelia Begu on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.
Resolution & payout
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
FAQ
- Where can I trade this market with the lowest fees?
- On Polymarket Scam?, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- What's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- How fast are USDC deposits?
- Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket Scam? triggers a quick verification flow that finishes in minutes.
- How reliable are the quoted odds?
- The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.
Trade Bad Homburg Open: Venus Williams vs Irina-Camelia Begu on Polymarket Scam?
Live order book, 0% fees, USDC settlement in seconds.
Trade on Polymarket Scam? →