Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Robinhood Prediction Markets) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Go to the live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Go to the live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Go to the live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Go to the live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Samsun: Constantin Bittoun Kouzmine vs Manoj Dhamne Manas | 100% |
| Completed Match | 100% |
| Samsun: Constantin Bittoun Kouzmine vs Manoj Dhamne Manas Match O/U 21.5 | 100% |
| Samsun: Constantin Bittoun Kouzmine vs Manoj Dhamne Manas Set 2 O/U 8.5 | 100% |
| Samsun: Constantin Bittoun Kouzmine vs Manoj Dhamne Manas Set 2 Winner | 100% |
| Samsun: Constantin Bittoun Kouzmine vs Manoj Dhamne Manas Set 1 Winner | 100% |
| Samsun: Constantin Bittoun Kouzmine vs Manoj Dhamne Manas Set 1 O/U 8.5 | 100% |
| Samsun: Constantin Bittoun Kouzmine vs Manoj Dhamne Manas Set 2 O/U 9.5 | 100% |
| Samsun: Constantin Bittoun Kouzmine vs Manoj Dhamne Manas Set 1 O/U 9.5 | 100% |
| Samsun: Constantin Bittoun Kouzmine vs Manoj Dhamne Manas Set Handicap +/-1.5 | 100% |
| Samsun: Constantin Bittoun Kouzmine vs Manoj Dhamne Manas Set 2 O/U 10.5 | 100% |
| Samsun: Constantin Bittoun Kouzmine vs Manoj Dhamne Manas Total Sets: O/U 2.5 | 0% |
| Samsun: Constantin Bittoun Kouzmine vs Manoj Dhamne Manas Match O/U 22.5 | 0% |
| Samsun: Constantin Bittoun Kouzmine vs Manoj Dhamne Manas Match O/U 23.5 | 0% |
| Samsun: Constantin Bittoun Kouzmine vs Manoj Dhamne Manas Set 1 O/U 10.5 | 0% |
| Samsun: Constantin Bittoun Kouzmine vs Manoj Dhamne Manas Set Handicap +/-1.5 | 0% |
Market context
Constantin Bittoun Kouzmine’s quarter-final against Manas Dhamne in Samsun is the event behind this market, and the live result already points to a straight-sets win for Bittoun Kouzmine.[1][5][10] For a Polymarket-style book, that matters because a 100% YES quote leaves little room for price discovery; on Betfair, the same outcome would usually be expressed as very short decimal odds rather than a percentage, while Smarkets would present an implied probability closer to the exchange’s own pricing model. The practical difference is that a near-certain market can still trade differently once fees and liquidity are considered, especially for users comparing exchange commissions with Polymarket’s binary contract format and whatever KYC access applies on each venue.
The broader read is that market prices this one as a mismatch, and the ranking context supports that view: Bittoun Kouzmine was listed around ATP 560, while Dhamne was around ATP 372 in one live match page, with Bittoun Kouzmine also shown as having won his most recent four matches in the same feed.[3][4] Historical comparable cases in Challenger events are important because short-priced favourites can still create settlement risk when a match is postponed, abandoned or voided by rule, which is exactly the kind of edge case prediction markets must price. Tennis Temple’s pre-match view also showed Bittoun Kouzmine at about 28.8% against Dhamne at 71.2% on one odds conversion, underscoring that different books can display the same fixture very differently depending on whether they lead with decimal odds or implied probability.[14][15]
For traders, the key catalysts are not performance narratives but confirmation of completion: official scoring feeds, tournament order of play, and any last-minute delay, retirement or walkover announcement before the settlement window closes on 7 August. Sofascore and Tennis.com both carried the fixture for 31 July in Samsun, with start times around 09:00–10:30 UTC depending on feed and localisation, so venue scheduling and result validation are the immediate dependencies rather than future form.[5][6][10] If the match had not been played at all or had slipped beyond the seven-day window without a winner, the market rules would force a 50-50 outcome, which is the main settlement risk to watch on any platform, whether the user is looking at a percentage quote on Polymarket or a decimal price on Betfair or Smarkets.
Methodology
We read Samsun: Constantin Bittoun Kouzmine vs Manoj Dhamne Manas from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live mid is the canonical probability; the side-by-side columns benchmark fees, KYC, settlement currency and deposit rails so you can choose the venue that fits your jurisdiction and trade size.
Resolution & payout
Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.
Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.
FAQ
- Polymarket vs Kalshi — which is better?
- Depends on your location. Kalshi is CFTC-regulated, US-only with full KYC. Polymarket is global, on-chain, no KYC up to $1,500. Polymarket has ~10x higher liquidity but higher regulatory risk.
- Which platform has the deepest liquidity?
- Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.
- Is Betfair a Polymarket alternative?
- Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.
- Which platform is accessible globally?
- Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Robinhood Prediction Markets has a different geo footprint and routes to Polymarket's order book at 0% fees.
- Are all these platforms regulated?
- No. Kalshi is CFTC-regulated (US). Betfair and Smarkets are UK Gambling Commission licensed. Polymarket operates without explicit regulation — a different risk profile than a regulated sportsbook.
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