IK Sirius vs. IF Brommapojkarna

Platform comparison

Market context

Polymarket is pricing this Allsvenskan fixture at **73% YES** on the conditional token contract, so the market is leaning heavily towards the event resolving in the affirmative rather than treating it as close to a coin flip. The event itself is IK Sirius against IF Brommapojkarna at Studenternas IP in Uppsala, with kick-off set for 17:00 UTC on Monday, and settlement will depend on the official match outcome by the window closing at 17:00 UTC.

That level sits broadly in line with the recent matchup pattern. Sirius have generally had the better of this pairing, with several head-to-head summaries showing a clear edge across the last 5 to 12 meetings, including multiple wins and only a small number of Brommapojkarna results.[2][18] Sports Mole also notes Sirius have won three of the last five meetings, while Brommapojkarna have managed one victory, which helps explain why the market is still anchored above 70% even though football probabilities remain sensitive to one lineup change or a single early goal.[2]

For traders, the key catalysts are the usual pre-kick-off items: confirmed starting XIs, late injury or rotation news, and any schedule or venue update that would affect whether the match is completed on time. Coverage close to matchday has pointed to Sirius arriving in stronger recent form, while Brommapojkarna’s results have been more mixed, so any late team-news reversal could move a USDC-settled Polygon position quickly as the conditional token contract updates around the market’s binary settlement logic.[3][6]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Kalshi UK, which mirrors the Polymarket order book directly.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

UK Frequently Asked Questions

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Kalshi UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

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%.