Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Alternative) Pick polygram.ink (preferred broker) |
97% | 3% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
97% | 3% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open the market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open the market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open the market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open the market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| O/U 0.5 | 97% |
| O/U 1.5 | 87% |
| BK Hacken O/U 0.5 | 87% |
| 2nd Half O/U 0.5 | 85% |
| 1st Half O/U 0.5 | 79% |
| AIK O/U 0.5 | 76% |
| BK Hacken 2nd Half O/U 0.5 | 68% |
| O/U 2.5 | 67% |
| Both Teams to Score | 67% |
| BK Hacken O/U 1.5 | 61% |
| BK Hacken 1st Half O/U 0.5 | 59% |
| 2nd Half O/U 1.5 | 58% |
| AIK 2nd Half O/U 0.5 | 56% |
| AIK 1st Half O/U 0.5 | 47% |
| 1st Half O/U 1.5 | 46% |
| O/U 3.5 | 45% |
| AIK O/U 1.5 | 42% |
| Both Teams to Score in Second Half | 39% |
| BK Hacken O/U 2.5 | 33% |
| 2nd Half O/U 2.5 | 31% |
| BK Hacken (-1.5) | 30% |
| Both Teams to Score in First Half | 28% |
| BK Hacken 2nd Half O/U 1.5 | 28% |
| O/U 4.5 | 26% |
| BK Hacken 1st Half O/U 1.5 | 23% |
| AIK 2nd Half O/U 1.5 | 21% |
| 1st Half O/U 2.5 | 20% |
| AIK O/U 2.5 | 17% |
| BK Hacken (-2.5) | 15% |
| O/U 5.5 | 14% |
| AIK 1st Half O/U 1.5 | 13% |
| AIK (-1.5) | 12% |
| AIK (-2.5) | 4% |
Market context
BK Hacken, a Gothenburg-based Allsvenskan side, will face AIK Fotboll on 27 July 2026 at 13:00 ET in Sweden's top division. The current crowd-implied probability of 30% YES suggests traders are pricing in either a Hacken victory or a draw at roughly three-to-one odds against. Across major platforms, this translates differently: Polymarket's binary YES/NO structure implies 0.30 decimal odds for the affirmative outcome, whilst Kalshi and Betfair express the same probability as 3.33 and 3.30 decimal odds respectively for a Hacken win or draw. Smarkets' fractional format (7/3 against) mirrors Betfair's pricing but charges lower commissions on matched bets, a structural advantage for high-frequency traders. Polymarket's flat 2% fee and Kalshi's tiered maker-taker model diverge most sharply when positions exceed $5,000 notional value.
Hacken's recent form and injury status will drive repricing before settlement. The club finished fifth in 2025, whilst AIK—a Stockholm heavyweight with three league titles since 2018—typically commands home-ground advantage in fixture psychology, though this match occurs in Gothenburg. Allsvenskan's mid-season scheduling often correlates with European competition fatigue; AIK's participation in UEFA competitions may affect squad rotation. Traders should monitor official team news releases and Allsvenskan fixture announcements through late July, as late withdrawals or tactical shifts can shift probability by 5–8 percentage points on liquid platforms.
Methodology
We read BK Hacken vs. AIK - More Markets from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live mid is the canonical probability; the side-by-side columns benchmark fees, KYC, settlement currency and deposit rails so you can choose the venue that fits your jurisdiction and trade size.
Resolution & payout
Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.
Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.
FAQ
- What does Polymarket cost vs Kalshi?
- Polymarket: 0% fees, only Polygon network costs (~$0.01/trade). Kalshi: up to 7% per trade plus spread. For high-frequency traders, Polymarket is dramatically cheaper.
- What about Smarkets as an alternative?
- Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.
- Which platform is accessible globally?
- Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Polymarket Alternative has a different geo footprint and routes to Polymarket's order book at 0% fees.
- Are all these platforms regulated?
- No. Kalshi is CFTC-regulated (US). Betfair and Smarkets are UK Gambling Commission licensed. Polymarket operates without explicit regulation — a different risk profile than a regulated sportsbook.
- Which platform supports Klarna/SOFORT?
- Directly: none. Polymarket accepts only USDC on Polygon. Polymarket Alternative offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.
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