Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Scam?) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Place a position → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Place a position → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Place a position → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Place a position → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Place a position → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Grodzisk Mazowiecki: Mathys Erhard vs Olaf Pieczkowski | 100% |
| Completed Match | 100% |
| Grodzisk Mazowiecki: Mathys Erhard vs Olaf Pieczkowski Set 1 O/U 8.5 | 100% |
| Grodzisk Mazowiecki: Mathys Erhard vs Olaf Pieczkowski Set 2 Winner | 100% |
| Grodzisk Mazowiecki: Mathys Erhard vs Olaf Pieczkowski Total Sets: O/U 2.5 | 100% |
| Grodzisk Mazowiecki: Mathys Erhard vs Olaf Pieczkowski Set 2 O/U 8.5 | 100% |
| Grodzisk Mazowiecki: Mathys Erhard vs Olaf Pieczkowski Set 1 O/U 9.5 | 100% |
| Grodzisk Mazowiecki: Mathys Erhard vs Olaf Pieczkowski Match O/U 21.5 | 100% |
| Grodzisk Mazowiecki: Mathys Erhard vs Olaf Pieczkowski Set 2 O/U 9.5 | 100% |
| Grodzisk Mazowiecki: Mathys Erhard vs Olaf Pieczkowski Set 1 O/U 10.5 | 100% |
| Grodzisk Mazowiecki: Mathys Erhard vs Olaf Pieczkowski Match O/U 22.5 | 100% |
| Grodzisk Mazowiecki: Mathys Erhard vs Olaf Pieczkowski Set 2 O/U 10.5 | 100% |
| Grodzisk Mazowiecki: Mathys Erhard vs Olaf Pieczkowski Match O/U 23.5 | 100% |
| Grodzisk Mazowiecki: Mathys Erhard vs Olaf Pieczkowski Set 1 Winner | 0% |
| Grodzisk Mazowiecki: Mathys Erhard vs Olaf Pieczkowski Set Handicap +/-1.5 | 0% |
| Grodzisk Mazowiecki: Mathys Erhard vs Olaf Pieczkowski Set Handicap +/-1.5 | 0% |
Market context
Polymarket has this contract at 100% YES, which means the market is pricing the listed winner as fully settled in one direction on the exchange, even though the tennis match was originally scheduled for 3 August and is still within the resolution window. On Polymarket, the position is backed by USDC and clears through Polygon-based conditional tokens, so the key question is whether the match produces a winner before 10 August at 08:00 UTC; if not, the market can still resolve 50-50 under the stated rules.
For context, this is a Challenger-level hard-court meeting in Grodzisk Mazowiecki, with Erhard listed around ATP No. 383 and Pieczkowski around No. 643, and no recorded head-to-head between them. That kind of ranking gap usually pushes the favourite’s side close to certainty in shallow markets, but it also leaves room for on-court variance because Challenger draws can be uneven and late schedule movement is common. Comparable markets on tour often stay pinned once one player is strongly favoured and the event is expected to run on schedule, but that does not remove the settlement risk if the match is postponed or abandoned.
The main trader watchpoints are the order of play, any rain or court delays, and whether the tie is moved beyond the seven-day limit rather than simply finished later in the week. Tournament boards for 4 August showed multiple postponements and suspensions elsewhere in the Grodzisk Mazowiecki draw, which matters because a delay can affect whether this contract resolves to a winner or flips to 50-50. With no prior meeting to anchor price discovery, the market will tend to react most sharply to confirmed start times, retirements, walkovers, and any change in the official schedule.
Methodology
This page reviews Grodzisk Mazowiecki: Mathys Erhard vs Olaf Pieczkowski across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Polymarket Scam?, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
FAQ
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- 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.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Scam? trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
- 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 Grodzisk Mazowiecki: Mathys Erhard vs Olaf Pieczkowski on Polymarket Scam?
Live order book, 0% fees, USDC settlement in seconds.
Open live market →