Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
BTC Prediction Pick polygram.ink |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on BTC Prediction → |
Polymarket polymarket.com |
0% | 100% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on BTC Prediction → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on BTC Prediction → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on BTC Prediction → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on BTC Prediction → |
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 BTC Prediction.
Active sub-markets
| Halle Open: Terence Atmane vs Martin Landaluce Set 2 Winner | 0% Atmane | 100% Landaluce |
| Halle Open: Terence Atmane vs Martin Landaluce Set 2 O/U 9.5 | 0% Over | 100% Under |
| Halle Open: Terence Atmane vs Martin Landaluce Match O/U 22.5 | 100% Over | 0% Under |
| Halle Open: Terence Atmane vs Martin Landaluce Set 2 O/U 10.5 | 0% Over | 100% Under |
| Halle Open: Terence Atmane vs Martin Landaluce Match O/U 23.5 | 100% Over | 0% Under |
| Halle Open: Terence Atmane vs Martin Landaluce Set 2 O/U 8.5 | 100% Over | 0% Under |
Market context
The Halle Open grass-court tournament will host a first-round match between French qualifier Terence Atmane and Spanish player Martin Landaluce on 15 June 2026. Atmane, ranked outside the top 200 for most of 2025, has competed primarily on the Challenger circuit and qualifying draws at ATP events. Landaluce similarly operates at the lower tiers of professional tennis, with limited main-draw exposure at established tournaments. Neither player has recorded significant wins against seeded opposition or demonstrated consistent performance at ATP 500 level, making this a genuine toss-up between two fringe competitors.
The 0% implied probability reflects the market's current illiquidity rather than certainty about the outcome. Comparable first-round matches between unranked or low-ranked players on grass courts typically settle near 50-50 when both participants lack recent form data or head-to-head history. The settlement window extends to 22 June, providing a seven-day buffer beyond the scheduled date—sufficient time for weather delays common on grass courts during the European summer season. Traders should monitor Halle's official draw confirmations and any late withdrawals, which occasionally occur when players prioritise preparation for Wimbledon qualifying or main-draw entry.
USDC settlement mechanics on btc-prediction.bet will execute upon confirmed match resolution through ATP official records. Current funding conditions across major exchanges show no material correlation to lower-tier tennis outcomes, though BTC spot volatility may influence broader market participation during the settlement window. Watch for injury announcements or late-stage draw changes in the 48 hours preceding the match, as these typically trigger liquidity shifts in peripheral sports markets.
Methodology
This page reads Halle Open: Terence Atmane vs Martin Landaluce 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 for comparison. 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
- Is this market available outside the US?
- BTC Prediction is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.
- 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 does it cost to trade on BTC Prediction?
- Zero. BTC Prediction 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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