Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open the market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open the market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open the market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open the market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Grodzisk Mazowiecki: Joel Schwaerzler vs Ilya Ivashka | 100% |
| Completed Match | 100% |
| Grodzisk Mazowiecki: Joel Schwaerzler vs Ilya Ivashka Set 1 Winner | 100% |
| Grodzisk Mazowiecki: Joel Schwaerzler vs Ilya Ivashka Set 2 Winner | 100% |
| Grodzisk Mazowiecki: Joel Schwaerzler vs Ilya Ivashka Set 2 O/U 8.5 | 100% |
| Grodzisk Mazowiecki: Joel Schwaerzler vs Ilya Ivashka Match O/U 21.5 | 100% |
| Grodzisk Mazowiecki: Joel Schwaerzler vs Ilya Ivashka Set 1 O/U 8.5 | 100% |
| Grodzisk Mazowiecki: Joel Schwaerzler vs Ilya Ivashka Set Handicap +/-1.5 | 100% |
| Grodzisk Mazowiecki: Joel Schwaerzler vs Ilya Ivashka Set 2 O/U 9.5 | 100% |
| Grodzisk Mazowiecki: Joel Schwaerzler vs Ilya Ivashka Match O/U 22.5 | 100% |
| Grodzisk Mazowiecki: Joel Schwaerzler vs Ilya Ivashka Set 1 O/U 9.5 | 100% |
| Grodzisk Mazowiecki: Joel Schwaerzler vs Ilya Ivashka Set 1 O/U 10.5 | 100% |
| Grodzisk Mazowiecki: Joel Schwaerzler vs Ilya Ivashka Total Sets: O/U 2.5 | 0% |
| Grodzisk Mazowiecki: Joel Schwaerzler vs Ilya Ivashka Set Handicap +/-1.5 | 0% |
| Grodzisk Mazowiecki: Joel Schwaerzler vs Ilya Ivashka Set 2 O/U 10.5 | 0% |
| Grodzisk Mazowiecki: Joel Schwaerzler vs Ilya Ivashka Match O/U 23.5 | 0% |
Market context
Polymarket is pricing this tennis contract at **100% YES**, so the market is effectively assuming Joel Schwaerzler will be the advancing player in Grodzisk Mazowiecki, with USDC already locked into Polygon-based conditional tokens rather than a simple opinion poll. For Polymarket users, the key point is that settlement depends on the match outcome as recorded in the event rules: if Schwaerzler advances, YES pays; if Ilya Ivashka advances, NO pays; and if the match is not completed under the stated conditions, the market can fall back to 50-50.
The live tennis context does not fully justify a 100% reading on competitive grounds alone. Public match pages show Schwaerzler and Ivashka both entered the quarter-final on hard court at Grodzisk Mazowiecki, with Schwaerzler around ATP No. 183 and Ivashka around No. 401, but several previews describe Ivashka as the stronger favourite on form and pricing, including a 58.4% to 41.6% split and betting odds that make Ivashka the shorter-priced player.[1][2][8][16] That mismatch between bracket ranking and crowd pricing is the central market detail: if the contract is truly at 100% YES, it is trading as if the result is already locked, not merely favoured.
The catalysts to watch are straightforward: official order-of-play changes, on-court retirement or walkover notices, and whether the quarter-final is actually completed before the market’s settlement window closes. Match listings give slightly different start times, ranging from 11:10 to 13:00 UTC, which is a useful reminder that tennis schedules can move and that conditional-token settlement follows the recorded advancement, not pre-match expectation.[1][3][17] In practical terms, traders should monitor whether the match starts on time, whether either player withdraws before first ball, and whether tournament reporting confirms a completed result rather than an abandoned or delayed fixture.[1][7]
Methodology
This page reviews Grodzisk Mazowiecki: Joel Schwaerzler vs Ilya Ivashka 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 PolyGram, 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
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is PolyGram. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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 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.
- 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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