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
| Plovdiv: Andres Santamarta vs Inaki Montes Set 1 Winner | 0% Santamarta | 100% Montes |
| Plovdiv: Andres Santamarta vs Inaki Montes | 0% Andres Santamarta | 100% Inaki Montes |
| Completed Match | 100% YES | 0% NO |
| Plovdiv: Andres Santamarta vs Inaki Montes Match O/U 21.5 | 0% Over | 100% Under |
| Plovdiv: Andres Santamarta vs Inaki Montes Set 1 O/U 8.5 | 100% Over | 0% Under |
| Plovdiv: Andres Santamarta vs Inaki Montes Match O/U 22.5 | 0% Over | 100% Under |
Market context
The upcoming ATP Challenger semifinal in Plovdiv pits Andres Santamarta Roig against Iñaki Montes-de la Torre, a match originally scheduled for 8:30 AM ET on 26 June 2026. Current market data shows a 0% implied probability for Santamarta advancing, suggesting the crowd heavily favours Montes, who recently defeated Michalski 7-5, 6-2 in the quarterfinals[3].
Historical head-to-head records between these two Spanish players are perfectly balanced, with each holding one win against the other, creating a 50-50 split in their prior encounters[2]. Comparable cases in ATP Challenger tournaments where evenly matched H2H records exist often result in volatile pricing shifts once live play begins, yet the current 0% figure implies an extreme, perhaps premature, consensus that overlooks Santamarta’s dominant 6-0, 6-2 victory over Milic in the previous round[8].
Traders should monitor the official ATP Tour scoreboard for any delays or cancellations, as a match not played or delayed beyond seven days triggers a 50-50 resolution[3]. Key catalysts include the players’ on-court stamina following their respective quarterfinal battles and any late-breaking news regarding weather conditions in Plovdiv, which could impact the USDC settlement timeline if the match is postponed[9]. While crypto macro trends like BTC volatility rarely dictate tennis outcomes, whale flows into prediction markets often surge when settlement windows near, so watching funding rates on major exchanges may signal increased liquidity for this contract[1].
Methodology
Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — are listed with their platform attributes, because they operate off-chain and a 1:1 comparison of contract mechanics isn't possible.
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.
- 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.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, BTC Prediction triggers a quick verification flow that finishes in 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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