Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Swiss Open: Jerome Kym vs Dylan Dietrich | 100% |
| Completed Match | 100% |
| Swiss Open: Jerome Kym vs Dylan Dietrich Set 1 Winner | 100% |
| Swiss Open: Jerome Kym vs Dylan Dietrich Total Sets: O/U 2.5 | 100% |
| Swiss Open: Jerome Kym vs Dylan Dietrich Match O/U 21.5 | 100% |
| Swiss Open: Jerome Kym vs Dylan Dietrich Set 1 O/U 8.5 | 100% |
| Swiss Open: Jerome Kym vs Dylan Dietrich Set 1 O/U 9.5 | 100% |
| Swiss Open: Jerome Kym vs Dylan Dietrich Match O/U 22.5 | 100% |
| Swiss Open: Jerome Kym vs Dylan Dietrich Match O/U 23.5 | 100% |
| Swiss Open: Jerome Kym vs Dylan Dietrich Set 1 O/U 10.5 | 100% |
| Swiss Open: Jerome Kym vs Dylan Dietrich Set 2 Winner | 0% |
| Swiss Open: Jerome Kym vs Dylan Dietrich Set 2 O/U 8.5 | 0% |
| Swiss Open: Jerome Kym vs Dylan Dietrich Set Handicap +/-1.5 | 0% |
| Swiss Open: Jerome Kym vs Dylan Dietrich Set 2 O/U 9.5 | 0% |
| Swiss Open: Jerome Kym vs Dylan Dietrich Set 2 O/U 10.5 | 0% |
Market context
The Swiss Open tennis tournament will host a first-round match between Jerome Kym and Dylan Dietrich on 14 July 2026. Kym, a Swiss player competing on home soil, faces Dietrich in what represents an early-round encounter at one of Europe's mid-tier ATP events. The 45% implied probability for Kym's advancement reflects genuine uncertainty about the matchup, suggesting traders view this as a competitive fixture rather than a heavily favoured outcome.
Comparable ATP first-round matches at Swiss venues show home-court advantage typically shifts odds by 5–8 percentage points, though this effect weakens considerably when both players carry similar ranking profiles. Historical data from ATP 250 events indicates that unseeded or lower-ranked players advance in roughly 40–45% of opening-round contests, which aligns with current market pricing. Dietrich's recent form and ranking trajectory will be material; if either player has climbed or fallen significantly in the weeks preceding the event, the probability should adjust accordingly.
Traders should monitor the official ATP draw announcement and any injury reports from both camps, particularly given the compressed schedule typical of summer European tournaments. Weather conditions at the Swiss venue may favour particular playing styles—clay courts, if used, typically advantage baseline players with strong defensive records. Settlement hinges on match completion by 21 July; any cancellation, retirement after play begins without a clear winner, or delay beyond seven days triggers the 50-50 resolution clause. USDC settlement will execute once the ATP officially records the result.
Methodology
This page reads Swiss Open: Jerome Kym vs Dylan Dietrich on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed alongside for venue context. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.
Resolution & payout
Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.
Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.
FAQ
- Why USDC and not ETH or USDT?
- USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.
- Can I use Bitcoin directly?
- No, Polymarket operates exclusively in USDC on Polygon. You can bridge BTC to USDC via an exchange or bridge service and deposit on Polygon — typically 10-30 minutes processing time.
- How does UMA secure the resolution?
- The UMA Optimistic Oracle uses a bond system: a proposer posts a bond, a two-hour challenge window opens. On dispute the losing side forfeits the bond — financial incentive for honest resolution.
- How volatile are crypto prediction markets?
- Crypto markets react to spot prices — a 5% BTC move typically shifts a "BTC above X by date" market 10-20%. Polymarket crypto market liquidity is usually six-figure USD, sufficient for active trading.
- Are crypto prediction markets taxable in the US?
- In the US, prediction market gains are typically treated as ordinary income or short-term capital gains depending on holding period. Consult a tax professional for your specific situation — we cannot provide tax advice.
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