Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Who Will Win) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| GAIS (-1.5) | 100% |
| O/U 0.5 | 100% |
| O/U 1.5 | 100% |
| GAIS O/U 0.5 | 100% |
| GAIS O/U 1.5 | 100% |
| 2nd Half O/U 0.5 | 100% |
| 2nd Half O/U 1.5 | 100% |
| GAIS 2nd Half O/U 0.5 | 100% |
| GAIS 2nd Half O/U 1.5 | 100% |
| Halmstads BK (-1.5) | 0% |
| Halmstads BK (-2.5) | 0% |
| GAIS (-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% |
| 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% |
| Halmstads BK O/U 0.5 | 0% |
| Halmstads BK O/U 1.5 | 0% |
| Halmstads BK O/U 2.5 | 0% |
| GAIS O/U 2.5 | 0% |
| Halmstads BK 1st Half O/U 0.5 | 0% |
| Halmstads BK 1st Half O/U 1.5 | 0% |
| GAIS 1st Half O/U 0.5 | 0% |
| GAIS 1st Half O/U 1.5 | 0% |
| Both Teams to Score in Second Half | 0% |
| 2nd Half O/U 2.5 | 0% |
| Halmstads BK 2nd Half O/U 0.5 | 0% |
| Halmstads BK 2nd Half O/U 1.5 | 0% |
Market context
Halmstads BK meet GAIS in Allsvenskan, and the market’s **0% YES** implies the crowd sees no realistic path for any *other* listed result in the “more markets” set. On the form and head-to-head evidence available, that is a notably strong consensus rather than a coin-flip spot: GAIS have the better league position and have taken four points from the two most recent meetings, including a 1-1 draw in Gothenburg on 26 July[2][14]. Longer-run match-up data are more mixed, though, with FootyStats showing GAIS ahead 8-6 in 18 recent meetings and both sides close on goals scored across those games[1]. That combination usually points to a favourite/underdog split where the favourite is GAIS, but the historical draw rate is high enough that contrarian value is often found in draw-leaning or low-scoring derivatives rather than a blanket favourite call[1][17].
The main catalysts are team news and the exact market definition, because “more markets” can be sensitive to line-ups, cards, corners, and goal timing rather than just the match result. Halmstad have been in poor recent league form, losing 0-2 to IK Sirius on 3 August and scoring only once across their last several league matches shown by Sky Sports[2]. GAIS arrive with a stronger record overall, listed by ESPN at 4-3-4 and 15 points against Halmstad’s 1-3-6 and 6 points, which supports the favourite case if the market is broadly about match strength rather than a niche stat angle[14]. Traders should watch for late squad confirmations and any change in the market’s exact settlement rule; if the “more markets” pool is tied to match events, the value may sit away from the obvious favourite and into a contrarian underdog or draw-linked outcome, because the raw 0% YES leaves almost all pricing power on the no side[2][14].
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
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
UK Frequently Asked Questions
- 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.
- 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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