The Hundred: Birmingham Phoenix vs MI London

Platform comparison

Market context

The Hundred tournament will host a fixture between Birmingham Phoenix and MI London on 12 August 2026. The Hundred is England's domestic Twenty20 competition, structured around eight regional franchises competing in a condensed format. Each team plays one hundred balls per innings, creating a compressed match format typically lasting around two and a half hours. The settlement window closes on 19 August at 17:30 UTC, allowing five days post-match for official confirmation and any regulatory determinations.

The 0% implied probability reflects either incomplete market seeding or genuine uncertainty about fixture confirmation rather than a prediction about match outcome. Historical Hundred data shows both franchises have competitive rosters; Birmingham Phoenix reached the 2023 final whilst MI London (formerly London Spirit) has demonstrated variable form across seasons. For programmatic traders, the key consideration is fixture dependency—any cancellation, postponement, or venue change would trigger market resolution mechanics outlined in the conditions. The settlement clause specifying that DLS adjustments, over-rate penalties, and Super Over results all count as ordinary wins simplifies resolution logic compared to some cricket markets.

Traders should monitor the ECB's official fixture list and weather forecasts for the Birmingham area in mid-August, as August historically presents elevated rain risk in the Midlands. Squad announcements typically occur six to eight weeks before the tournament; any significant injury withdrawals or international call-ups affecting either franchise would shift match dynamics. Conditional order strategies could be structured around team-sheet confirmation, which usually arrives 24 hours pre-match, allowing traders to adjust positions based on actual playing XI composition rather than relying on pre-tournament roster data.

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

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's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

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%.