Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Kalshi Alternative UK Pick polygram.ink |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Kalshi Alternative UK → |
Polymarket polymarket.com |
0% | 100% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Kalshi Alternative UK → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Kalshi Alternative UK → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Kalshi Alternative UK → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Kalshi Alternative UK → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on Kalshi Alternative UK.
Active sub-markets
| HSBC Championships: Adrian Mannarino vs Arthur Fery | 0% Adrian Mannarino | 100% Arthur Fery |
| Completed Match | 100% YES | 0% NO |
| HSBC Championships: Adrian Mannarino vs Arthur Fery Set 1 Winner | 0% Mannarino | 100% Fery |
| HSBC Championships: Adrian Mannarino vs Arthur Fery Set 2 O/U 9.5 | 100% Over | 0% Under |
| HSBC Championships: Adrian Mannarino vs Arthur Fery Set 2 O/U 10.5 | 0% Over | 100% Under |
| HSBC Championships: Adrian Mannarino vs Arthur Fery Set 2 Winner | 0% Mannarino | 100% Fery |
Market context
Adrian Mannarino and Arthur Fery are scheduled to meet in the HSBC Championships on 17 June 2026 at 4:00 AM ET. The market currently prices Mannarino's advancement at 30 per cent implied probability across most platforms, though decimal odds representations vary: Betfair and Smarkets display this as roughly 3.33, whilst Polymarket's fractional interface shows longer odds. The settlement window extends to 24 June, allowing a seven-day buffer for delays or rescheduling before resolution defaults to 50-50.
Mannarino, a left-handed baseliner ranked in the 40–60 range historically, has shown volatility in grass-court performance; his record at comparable ATP events reflects inconsistency against rising talent. Fery, a younger player with improving rankings, has gained ground on clay and hard courts but lacks extensive grass-court data at this level. Prior HSBC Championships matches between unseeded or lower-ranked players have often resolved with the higher-ranked player advancing, though upsets occur in roughly 25–35 per cent of such matchups depending on surface and draw positioning.
Traders monitoring this market should track official ATP and HSBC Championships announcements regarding draw confirmation and court assignments, as grass-court conditions and scheduling can shift player form significantly. Injury reports or withdrawal news from either player would trigger immediate repricing; Kalshi's stricter KYC requirements may delay position adjustments compared to Betfair's faster-moving liquidity pools. The 4:00 AM ET start time may suppress retail participation on UK-based platforms, potentially widening spreads between Smarkets and Polymarket during European trading hours.
Methodology
We read HSBC Championships: Adrian Mannarino vs Arthur Fery 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 quote comes directly from the Polygon order book; the other three are listed with their platform attributes — fees, KYC, settlement currency, payment options — because a 1:1 contract comparison without API access would be guesswork.
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
- 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'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 it cost to trade on Kalshi Alternative UK?
- Zero. Kalshi Alternative UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.
- 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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