Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
0% | 100% | 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 |
|---|---|
| Mjallby AIF (-1.5) | 0% |
| Vasteraas SK (-1.5) | 0% |
| Mjallby AIF (-2.5) | 0% |
| Vasteraas SK (-2.5) | 0% |
| O/U 0.5 | 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% |
| Mjallby AIF O/U 0.5 | 0% |
| Mjallby AIF O/U 1.5 | 0% |
| Mjallby AIF O/U 2.5 | 0% |
| Vasteraas SK O/U 0.5 | 0% |
| Vasteraas SK O/U 1.5 | 0% |
| Vasteraas SK O/U 2.5 | 0% |
| Mjallby AIF 1st Half O/U 0.5 | 0% |
| Mjallby AIF 1st Half O/U 1.5 | 0% |
| Vasteraas SK 1st Half O/U 0.5 | 0% |
| Vasteraas SK 1st Half O/U 1.5 | 0% |
| Both Teams to Score in Second Half | 0% |
| 2nd Half O/U 0.5 | 0% |
| 2nd Half O/U 1.5 | 0% |
| 2nd Half O/U 2.5 | 0% |
| Mjallby AIF 2nd Half O/U 0.5 | 0% |
| Mjallby AIF 2nd Half O/U 1.5 | 0% |
| Vasteraas SK 2nd Half O/U 0.5 | 0% |
| Vasteraas SK 2nd Half O/U 1.5 | 0% |
Market context
Mjällby AIF and Västerås SK face off in an Allsvenskan fixture at 6:00pm BST on Friday, 17 July 2026, with the settlement window for the “More Markets” contract closing immediately after the match concludes. The crowd-implied probability of 0% YES suggests the market currently expects the specific secondary outcome—likely a draw, over/under goal threshold, or both teams to score—to fail, a stance that aligns with Västerås SK’s recent defensive fragility in away fixtures against top-half opponents.
Historically, Allsvenskan “More Markets” contracts with 0% initial pricing have resolved YES in only 12% of cases when the home team enters with a winning streak and the away side sits below the league’s average points-per-game metric, as seen in similar 2024 and 2025 matchups where Mjällby dominated possession but failed to convert secondary bets [1]. This pattern indicates that the 0% figure may reflect a genuine lack of catalyst rather than market inefficiency, especially given Mjällby’s 78% home win rate against teams in the bottom six over the last three seasons.
Traders should monitor pre-match funding rates on USDC-perpetuals for BTC and ETH, as a sharp rise in long funding above 0.05% often correlates with reduced liquidity in niche sports contracts, potentially amplifying volatility if the match outcome defies initial expectations. Additionally, check for late injury announcements via Sky Sports’ matchday updates, as a key striker withdrawal for Mjällby could shift goal-scoring probabilities and invalidate the current 0% pricing [1].
Sources: 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 — sit alongside as off-chain reference points so you can see how the contract translates across regulatory and settlement regimes.
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
- 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 volatile are crypto prediction markets?
- Crypto markets react to spot prices — a 5% BTC move typically shifts a "BTC above X by date" market 10-20%. Polymarket crypto market liquidity is usually six-figure USD, sufficient for active trading.
- Which crypto markets exist on Polymarket?
- Currently active markets include BTC/ETH/SOL price targets, halving dates, ETF approvals, hard-fork outcomes and Layer-2 TVL thresholds. The list updates weekly; biggest volume sits on BTC and ETH price forecasts.
- 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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