Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Completed Match | 100% |
| Iasi: Cezar Cretu vs Gustavo Heide Set 1 Winner | 100% |
| Iasi: Cezar Cretu vs Gustavo Heide Total Sets: O/U 2.5 | 100% |
| Iasi: Cezar Cretu vs Gustavo Heide Match O/U 21.5 | 100% |
| Iasi: Cezar Cretu vs Gustavo Heide Set 2 O/U 8.5 | 100% |
| Iasi: Cezar Cretu vs Gustavo Heide Set 2 O/U 9.5 | 100% |
| Iasi: Cezar Cretu vs Gustavo Heide Match O/U 22.5 | 100% |
| Iasi: Cezar Cretu vs Gustavo Heide Set 2 O/U 10.5 | 100% |
| Iasi: Cezar Cretu vs Gustavo Heide Match O/U 23.5 | 100% |
| Iasi: Cezar Cretu vs Gustavo Heide | 0% |
| Iasi: Cezar Cretu vs Gustavo Heide Set 1 O/U 8.5 | 0% |
| Iasi: Cezar Cretu vs Gustavo Heide Set 2 Winner | 0% |
| Iasi: Cezar Cretu vs Gustavo Heide Set Handicap +/-1.5 | 0% |
| Iasi: Cezar Cretu vs Gustavo Heide Set 1 O/U 9.5 | 0% |
| Iasi: Cezar Cretu vs Gustavo Heide Set Handicap +/-1.5 | 0% |
| Iasi: Cezar Cretu vs Gustavo Heide Set 1 O/U 10.5 | 0% |
Market context
The tennis match between Cezar Cretu and Gustavo Heide in Iaşi, Romania, is set to begin today at 10:30 UTC on the Centre Court of the ATP Challenger event, with the market currently pricing Cezar Cretu’s advancement at 0% YES despite the match being live. On Polymarket, this contract trades on the Polygon network using USDC, where conditional tokens reflect the crowd’s near-total dismissal of Cretu winning, likely due to Heide’s superior recent form and head-to-head momentum. The on-chain mechanics ensure that if the match is postponed, the market remains open and resolves only after the rescheduled play concludes within two weeks, preserving liquidity for traders adjusting positions before settlement.
Historically, similar Challenger-level mismatches where one player has reached the second round with dominant scores—like Heide’s 6-4, 7-6(4) win over David Poljak—often see markets collapse to single-digit probabilities for the underdog, as seen in prior Iaşi events where clay-court specialists with higher serve efficiency dominated early rounds. Cretu, ranked 272, advanced 6-1, 6-4 against Alex Marti Pujolras, but his lower first-serve percentage (65%) and break-point conversion compared to Heide’s 72% first-serve accuracy and 4 saved break points frame the current 0% pricing as a rational reflection of statistical disparity rather than an anomaly.
Traders should monitor official tournament announcements for weather delays or player injuries, as the Iaşi event’s high humidity (91%) and 14°C temperature may affect serve performance, particularly for Cretu’s weaker first-serve consistency. Recent coverage from TennisTonic highlights Heide’s career-high ranking of 272 and his tactical adaptability on clay, suggesting that any delay beyond seven days without a winner would trigger the 50-50 resolution clause, a dependency that could shift conditional token values if uncertainty rises. No moralising is needed; the facts show Heide’s form and the market’s pricing align with observable performance metrics.
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
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
- 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 Kalshi UK. 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'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.
- 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 Iasi: Cezar Cretu vs Gustavo Heide on Kalshi UK
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