IF Brommapojkarna vs. IK Sirius - More Markets

Platform comparison

Market context

The underlying event is the Allsvenskan fixture between IF Brommapojkarna and IK Sirius at Grimsta IP, scheduled for 14:30 local time on 12 July 2026. With the crowd-implied probability at 0% YES, the market currently signals near-certainty that the specific secondary condition will not trigger, a stance that aligns with the historical dominance of Sirius in this pairing.

Historical data frames this zero probability as a rational baseline rather than an anomaly. Across 23 meetings since 2007, IK Sirius has secured 12 wins compared to Brommapojkarna’s five, with Sirius winning 63% of the last eight matches while Brommapojkarna managed only 25% [4][5]. Sirius also holds four recent away victories in the Allsvenskan, suggesting they control the match tempo required to suppress the market’s target outcome [1]. For a programmatic trader, this head-to-head skew justifies a short position or a conditional order that cancels if pre-match lineups deviate from the expected defensive setup.

Traders must monitor the official lineup release at 13:30 ET and any late injury news affecting Sirius’s attacking depth, as these are the primary catalysts for probability shifts [2]. The settlement window closes at 14:30 UTC, meaning any bot executing copy-trading strategies must finalise entries before the kickoff to avoid slippage. While Sky Sports lists the match as a 0–0 preview prior to play, the live odds and in-game events will determine the final settlement, making real-time data feeds essential for automated execution [2].

Sources: 1 · 2 · 3 · 4 · 5

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.

FAQ

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 Fees. 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.

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.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi Fees trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.