Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Kalshi UK Pick polygram.ink |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Kalshi UK → |
Polymarket polymarket.com |
0% | 100% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Kalshi UK → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Kalshi UK → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Kalshi UK → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Kalshi 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 UK.
Active sub-markets
| Halle Open: Taylor Fritz vs Frances Tiafoe Set 1 Winner | 0% Fritz | 100% Tiafoe |
| Halle Open: Taylor Fritz vs Frances Tiafoe Match O/U 21.5 | 0% Over | 100% Under |
| Halle Open: Taylor Fritz vs Frances Tiafoe Match O/U 22.5 | 0% Over | 100% Under |
| Halle Open: Taylor Fritz vs Frances Tiafoe Match O/U 23.5 | 0% Over | 100% Under |
| Halle Open: Taylor Fritz vs Frances Tiafoe Set Handicap +/-1.5 | 0% Fritz | 100% Tiafoe |
| Halle Open: Taylor Fritz vs Frances Tiafoe Set 2 O/U 8.5 | 100% Over | 0% Under |
Market context
Polymarket is pricing this Halle match at **62% YES** on USDC-settled conditional tokens on Polygon, which means the market is leaning towards **Taylor Fritz** advancing over Frances Tiafoe rather than treating the contest as a coin flip. The contract resolves to Fritz if he advances, to Tiafoe if Tiafoe advances, and to 50-50 if the match is not played, ends in a tie, or is left without a winner beyond the seven-day delay rule.[3]
The live tennis context matters because the players have already reached the final at Halle: Fritz beat Alexander Zverev, while Tiafoe defeated Daniel Altmaier in Saturday’s semi-finals, according to the ATP’s official highlights and match reports.[1][7] That recent form is consistent with the market not pricing this as a generic name-vs-name matchup, but as a specific grass-court final where recent performance, serve quality and short-format variance can move the price quickly. Comparable high-level meetings between these two have tended to be close enough that small changes in perceived fatigue or return numbers can matter more than broad season-long rankings.
For traders, the main catalysts are straightforward: the official match start time, any order-of-play changes, and whether the final is actually completed within the settlement window. Polymarket’s payout mechanics mean the key question is not just who is stronger on grass, but whether the match is played normally and yields an advance decision inside the contract’s rules.[3] The ATP’s tournament updates have already confirmed both finalists, so the remaining price risk is mostly around late scheduling, retirements, or an unexpected walkover rather than participant availability.[1][7]
Methodology
This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to Kalshi UK, which mirrors the Polymarket order book directly.
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?
- On Kalshi UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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 UK?
- Zero. Kalshi 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.
Trade Halle Open: Taylor Fritz vs Frances Tiafoe on Kalshi UK
Live order book, 0% fees, USDC settlement in seconds.
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