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 |
|---|---|
| AZ (-1.5) | 100% |
| O/U 0.5 | 100% |
| O/U 1.5 | 100% |
| AZ O/U 0.5 | 100% |
| AZ O/U 1.5 | 100% |
| 2nd Half O/U 1.5 | 100% |
| AZ 2nd Half O/U 0.5 | 100% |
| AZ 2nd Half O/U 1.5 | 100% |
| 2nd Half O/U 0.5 | 99% |
| Both Teams to Score in First Half | 1% |
| Both Teams to Score in Second Half | 1% |
| 2nd Half O/U 2.5 | 1% |
| ADO Den Haag (-1.5) | 0% |
| AZ (-2.5) | 0% |
| ADO Den Haag (-2.5) | 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% |
| 1st Half O/U 0.5 | 0% |
| 1st Half O/U 1.5 | 0% |
| 1st Half O/U 2.5 | 0% |
| AZ O/U 2.5 | 0% |
| ADO Den Haag O/U 0.5 | 0% |
| ADO Den Haag O/U 1.5 | 0% |
| ADO Den Haag O/U 2.5 | 0% |
| AZ 1st Half O/U 0.5 | 0% |
| AZ 1st Half O/U 1.5 | 0% |
| ADO Den Haag 1st Half O/U 0.5 | 0% |
| ADO Den Haag 1st Half O/U 1.5 | 0% |
| ADO Den Haag 2nd Half O/U 0.5 | 0% |
| ADO Den Haag 2nd Half O/U 1.5 | 0% |
Market context
AZ Alkmaar meet ADO Den Haag in the Eredivisie opening round at AFAS Stadion, with the match scheduled for 8 August and the live state already in play. The crowd-implied **100% YES** sits comfortably above the kind of pre-match probabilities seen in model-based previews, where AZ were still priced as favourites but not treated as a lock; one recent forecast put AZ’s win chance at 43.34%, with ADO at 31.9% and the draw at 24.75%.[1][19]
For historical context, AZ have a strong edge in this fixture: FotMob lists a head-to-head record of 16 AZ wins, four ADO wins and three draws, while recent previews note AZ have dominated the last ten meetings and that the previous league clash finished 1-1 in April 2026.[1][8][10][14] That matters for reading a 100% YES market on “more markets”, because similar one-sided club matchups often resolve before settlement once the underlying game state and available sub-markets are confirmed, especially when line-ups are out and the fixture is already underway.[3][7] The current listed starting XIs also show only a limited injury list, with AZ missing Jizz Hornkamp and ADO reporting no unavailable players on FotMob’s feed.[1]
Traders should watch for any late administrative or feed-side changes rather than match quality alone. AZ’s club site said the game would be shown live on ESPN 2, and ESPN/FOX Sports feeds confirm the fixture is active, which makes settlement dependent on the market’s exact contract wording and the oracle’s reading of the relevant sub-market data.[5][7][13] In on-chain terms, the main risk is not macro BTC or ETH direction, unless broader crypto volatility is affecting USDC liquidity or market-maker behaviour; absent unusual spot moves, funding spikes or whale flows, this looks primarily like a sports-settlement event rather than a crypto-driven one.
Methodology
This page reads AZ vs. ADO Den Haag - More Markets 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.
UK Frequently Asked Questions
- 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.
- What does a transaction cost on Polygon?
- Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.
- Is Polymarket legal in the UK?
- Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.
- Do I pay tax on prediction market profits in the UK?
- UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.
- How do I deposit on Polymarket from the UK?
- UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.
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