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 |
|---|---|
| Ajax Amsterdam (-1.5) | 100% |
| O/U 0.5 | 100% |
| O/U 1.5 | 100% |
| O/U 2.5 | 100% |
| O/U 3.5 | 100% |
| Both Teams to Score | 100% |
| 1st Half O/U 0.5 | 100% |
| 1st Half O/U 1.5 | 100% |
| FC Volendam O/U 0.5 | 100% |
| Ajax Amsterdam O/U 0.5 | 100% |
| Ajax Amsterdam O/U 1.5 | 100% |
| Ajax Amsterdam O/U 2.5 | 100% |
| Ajax Amsterdam 1st Half O/U 0.5 | 100% |
| Ajax Amsterdam 1st Half O/U 1.5 | 100% |
| Both Teams to Score in Second Half | 100% |
| 2nd Half O/U 0.5 | 100% |
| 2nd Half O/U 1.5 | 100% |
| FC Volendam 2nd Half O/U 0.5 | 100% |
| Ajax Amsterdam 2nd Half O/U 0.5 | 100% |
| FC Volendam (-1.5) | 0% |
| FC Volendam (-2.5) | 0% |
| Ajax Amsterdam (-2.5) | 0% |
| O/U 4.5 | 0% |
| O/U 5.5 | 0% |
| Both Teams to Score in First Half | 0% |
| 1st Half O/U 2.5 | 0% |
| FC Volendam O/U 1.5 | 0% |
| FC Volendam O/U 2.5 | 0% |
| FC Volendam 1st Half O/U 0.5 | 0% |
| FC Volendam 1st Half O/U 1.5 | 0% |
| 2nd Half O/U 2.5 | 0% |
| FC Volendam 2nd Half O/U 1.5 | 0% |
| Ajax Amsterdam 2nd Half O/U 1.5 | 0% |
Market context
FC Volendam and Ajax meet in a pre-season club friendly at the Kras Stadion, with the market here covering *other* match outcomes rather than the basic win-draw-win line. Ajax have dominated this fixture across recent seasons: they beat Volendam 2-0 in January 2026, drew 2-2 in a friendly in March 2026, and also won 4-1 in May 2024, while head-to-head records across multiple databases show Ajax with a clear edge and Volendam without a win in the last several meetings.[2][9][10][13][18] That history helps explain why a 0% crowd-implied chance on a more specific “more markets” contract can still be consistent with the footballing baseline: friendly matches often have wider variance than league fixtures, but the underlying talent gap still tends to compress the probability of unusual outcomes.[7][11]
For traders, the key catalysts are line-up news, whether Ajax treat the game as a full-strength final warm-up, and any late schedule or venue changes ahead of the settlement window.[4][11][14] Volendam’s own club coverage and external previews frame Ajax as the stronger side and note this is preparation for the new domestic season, which usually means rotation and experimentation rather than a fixed competitive setup.[5][11][12] In practice, that makes official team sheets and any pre-match comments more important than headline form. Because the contract settles in USDC on-chain, price can also move with broader crypto liquidity conditions if the event attracts larger speculative flow, although no crypto-specific catalyst is directly visible in the supplied sources.[20]
Methodology
This page reads FC Volendam vs. Ajax Amsterdam - 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.
FAQ
- What are crypto prediction markets?
- Crypto prediction markets are on-chain smart contracts where you buy YES or NO shares on a future crypto event (e.g. "BTC above $100k by year-end"). The market price between 0¢ and 100¢ is the implied probability.
- 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.
- 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.
- 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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