Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi vs Polymarket) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| O/U 0.5 | 100% |
| Atalanta BC O/U 0.5 | 100% |
| 2nd Half O/U 0.5 | 100% |
| Atalanta BC 2nd Half O/U 0.5 | 100% |
| Atalanta BC (-1.5) | 0% |
| Athletic Bilbao (-1.5) | 0% |
| Atalanta BC (-2.5) | 0% |
| Athletic Bilbao (-2.5) | 0% |
| O/U 1.5 | 0% |
| O/U 2.5 | 0% |
| O/U 3.5 | 0% |
| O/U 4.5 | 0% |
| O/U 5.5 | 0% |
| Both Teams to Score | 0% |
| Both Teams to Score in First Half | 0% |
| 1st Half O/U 0.5 | 0% |
| 1st Half O/U 1.5 | 0% |
| 1st Half O/U 2.5 | 0% |
| Atalanta BC O/U 1.5 | 0% |
| Atalanta BC O/U 2.5 | 0% |
| Athletic Bilbao O/U 0.5 | 0% |
| Athletic Bilbao O/U 1.5 | 0% |
| Athletic Bilbao O/U 2.5 | 0% |
| Atalanta BC 1st Half O/U 0.5 | 0% |
| Atalanta BC 1st Half O/U 1.5 | 0% |
| Athletic Bilbao 1st Half O/U 0.5 | 0% |
| Athletic Bilbao 1st Half O/U 1.5 | 0% |
| Both Teams to Score in Second Half | 0% |
| 2nd Half O/U 1.5 | 0% |
| 2nd Half O/U 2.5 | 0% |
| Atalanta BC 2nd Half O/U 1.5 | 0% |
| Athletic Bilbao 2nd Half O/U 0.5 | 0% |
| Athletic Bilbao 2nd Half O/U 1.5 | 0% |
Market context
Atalanta BC will face Athletic Bilbao in a pre-season friendly on 14 August at 2:45 PM ET. The match forms part of both clubs' summer preparation ahead of the 2026–27 season. Atalanta, based in Bergamo, finished third in Serie A last season and regularly compete in European competitions, whilst Athletic Bilbao, the Basque club from Bilbao, secured Champions League qualification via La Liga's top four. Pre-season friendlies between established European sides typically draw modest but engaged crowds and serve primarily as fitness tests rather than competitive fixtures.
The 0% implied probability on this contract reflects the structural reality of prediction markets covering club friendlies: liquidity concentrates on major leagues and knockout tournaments, leaving secondary markets thin and prone to extreme valuations. Comparable friendlies between top-flight European clubs rarely attract substantive trading volume on prediction platforms, even when sportsbooks offer modest odds. Historical patterns show that prediction-market prices for friendlies often diverge sharply from sportsbook lines, which themselves carry wide spreads due to reduced betting interest.
Traders should monitor team news and squad rotation announcements in the week preceding the fixture. Both clubs may field experimental line-ups or rest key players, information typically released via official channels or Italian and Spanish sports media outlets. The settlement window closes at 18:45 UTC on match day, leaving minimal time for post-match confirmation. Fixture postponements remain unlikely given the clubs' pre-season schedules, though weather or administrative changes could alter timing.
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
FAQ
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- 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 Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- 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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