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 |
|---|---|
| Hamburg: Jan Kumstat vs Max Houkes | 100% |
| Completed Match | 100% |
| Hamburg: Jan Kumstat vs Max Houkes Match O/U 21.5 | 100% |
| Hamburg: Jan Kumstat vs Max Houkes Set 2 O/U 8.5 | 100% |
| Hamburg: Jan Kumstat vs Max Houkes Set 1 Winner | 100% |
| Hamburg: Jan Kumstat vs Max Houkes Set 1 O/U 8.5 | 100% |
| Hamburg: Jan Kumstat vs Max Houkes Set 2 Winner | 100% |
| Hamburg: Jan Kumstat vs Max Houkes Set Handicap +/-1.5 | 100% |
| Hamburg: Jan Kumstat vs Max Houkes Match O/U 22.5 | 100% |
| Hamburg: Jan Kumstat vs Max Houkes Set 1 O/U 9.5 | 100% |
| Hamburg: Jan Kumstat vs Max Houkes Set 2 O/U 9.5 | 100% |
| Hamburg: Jan Kumstat vs Max Houkes Set 2 O/U 10.5 | 100% |
| Hamburg: Jan Kumstat vs Max Houkes Total Sets: O/U 2.5 | 0% |
| Hamburg: Jan Kumstat vs Max Houkes Set Handicap +/-1.5 | 0% |
| Hamburg: Jan Kumstat vs Max Houkes Set 1 O/U 10.5 | 0% |
| Hamburg: Jan Kumstat vs Max Houkes Match O/U 23.5 | 0% |
Market context
Jan Kumstat and Max Houkes are scheduled to meet in the Hamburg tournament on 13 August 2026, with the match originally set for 4:30 AM ET. The conditional token on Polymarket currently prices Kumstat's advancement at 100%, reflecting either extremely confident market sentiment or minimal liquidity depth at current levels. Settlement hinges on a completed match result by 20 August; any cancellation, tie, or delay beyond seven days without a winner triggers a 50-50 resolution, whilst retirement by either player after play begins counts as advancement for the opponent.
Historical precedent from ATP Challenger and lower-tier professional circuits shows that matches between unseeded or lower-ranked players often trade at extreme probabilities when one competitor holds a significant ranking advantage or head-to-head record. The 100% pricing here suggests traders view one player as substantially favoured, though the absence of recent public ranking data or direct matchup history makes this difficult to verify independently. Early-round Hamburg qualifiers and main draw encounters frequently feature such disparities, particularly when one entrant carries momentum from prior tournaments.
Traders should monitor Hamburg tournament draw confirmations and any player withdrawal announcements through the ATP official site or tournament updates in the week preceding 13 August. Weather disruptions in Hamburg during August occasionally compress schedules or force rescheduling; the seven-day grace period in the resolution criteria creates a meaningful edge case. Injury reports or late coaching changes can shift match dynamics significantly, though such information typically emerges only days before play. The extremely tight probability leaves little room for market repricing unless new information surfaces about either player's fitness or participation status.
Methodology
We track Hamburg: Jan Kumstat vs Max Houkes across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.
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?
- 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'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.
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