Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi Fees) 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 |
|---|---|
| Completed Match | 100% |
| Grodzisk Mazowiecki: Damir Dzumhur vs Mathys Erhard Match O/U 21.5 | 100% |
| Grodzisk Mazowiecki: Damir Dzumhur vs Mathys Erhard Set 1 O/U 8.5 | 100% |
| Grodzisk Mazowiecki: Damir Dzumhur vs Mathys Erhard Set 2 O/U 8.5 | 100% |
| Grodzisk Mazowiecki: Damir Dzumhur vs Mathys Erhard Set 2 O/U 9.5 | 100% |
| Grodzisk Mazowiecki: Damir Dzumhur vs Mathys Erhard Set Handicap +/-1.5 | 100% |
| Grodzisk Mazowiecki: Damir Dzumhur vs Mathys Erhard Set 2 O/U 10.5 | 100% |
| Grodzisk Mazowiecki: Damir Dzumhur vs Mathys Erhard | 0% |
| Grodzisk Mazowiecki: Damir Dzumhur vs Mathys Erhard Set 2 Winner | 0% |
| Grodzisk Mazowiecki: Damir Dzumhur vs Mathys Erhard Set 1 Winner | 0% |
| Grodzisk Mazowiecki: Damir Dzumhur vs Mathys Erhard Total Sets: O/U 2.5 | 0% |
| Grodzisk Mazowiecki: Damir Dzumhur vs Mathys Erhard Set Handicap +/-1.5 | 0% |
| Grodzisk Mazowiecki: Damir Dzumhur vs Mathys Erhard Match O/U 22.5 | 0% |
| Grodzisk Mazowiecki: Damir Dzumhur vs Mathys Erhard Set 1 O/U 9.5 | 0% |
| Grodzisk Mazowiecki: Damir Dzumhur vs Mathys Erhard Match O/U 23.5 | 0% |
| Grodzisk Mazowiecki: Damir Dzumhur vs Mathys Erhard Set 1 O/U 10.5 | 0% |
Market context
Damir Dzumhur and Mathys Erhard are set to meet in the Grodzisk Mazowiecki Challenger on outdoor hard court, with live listings putting Dzumhur around ATP No. 102-104 and Erhard around No. 359-383. That ranking gap matters in programme-style market models because it usually gives the higher-ranked player the baseline edge, but the current **0% YES** price leaves very little room for a straightforward favourite read and suggests the market is either stale or waiting on confirmation of the match state.[1][2][17]
For historical framing, there is no clear head-to-head data in the live match feeds, so traders have to lean on comparable Challenger-level mismatches rather than direct matchup history. Recent tournament context shows both players already through earlier rounds in Grodzisk Mazowiecki, with Dzumhur having beaten Geoffrey Blancaneaux 2-0 and Erhard having come through a tighter three-setter against Olaf Pieczkowski, which is the sort of form split a rules-based bot would encode as a modest recent-performance adjustment rather than a decisive signal.[13][4]
The practical catalysts are simple: confirm that the match starts, whether it remains on the published schedule, and whether any retirement or walkover path is triggered, because the market can still settle 50-50 if the match is cancelled, tied, or delayed beyond the settlement window without a winner. Live schedules currently place the match on 6 August at Central Court in Grodzisk Mazowiecki, and the published tournament pages are the first place a power user would poll for time changes, court moves, or score-state updates before letting conditional orders fire.[1][3][18]
Methodology
This page reviews Grodzisk Mazowiecki: Damir Dzumhur vs Mathys Erhard 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 Kalshi Fees, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
FAQ
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- 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.
- 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?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi Fees 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.
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