PGA Tour: FedEx St. Jude Championship First Round Leader

Platform comparison

Market context

The FedEx St. Jude Championship first-round leader market is a one-day sprint at TPC Southwind: the player with the lowest score to par after Round 1 wins, with tie-breaks that can extend to back nine scoring, then eagles and birdies. For programme-driven traders, that means the cleanest edge often comes from pre-opened first-round tee-time data, weather splits, and conditional rules that can auto-enter only when a player lands in a favourable wave.

The current 0% yes price looks detached from the pre-tournament board. Recent pricing has put Scottie Scheffler around +450 to +480 outright, with Rory McIlroy, Cameron Young, Xander Schauffele, Tommy Fleetwood, Sam Burns and others clustered behind him; first-round leader pricing from mainstream books has also kept Scheffler and other elite scorers inside the short list, while opinion pieces have highlighted names such as Michael Thorbjornsen, Keith Mitchell, Sam Burns and Russell Henley as FRL angles.[1][4][7][12][13] In practical terms, a 0% quote usually implies either an inactive or mispriced contract, so bot users should treat it as a data-quality check before sizing any order.

The main catalysts are tee-sheet release, groupings, and the Memphis weather forecast, because FRL markets at Southwind are highly sensitive to morning-versus-afternoon scoring conditions and any withdrawal news before first tee time. The PGA Tour’s own betting preview has already framed Scheffler and McIlroy as the headline names for the playoff opener, which matters because late lineup changes can shift first-round leader probabilities quickly once pairings and wave splits are confirmed.[4] Programmatically, the useful workflow is to poll odds after the official draw, compare book-implied FRL prices with the market, and use conditional orders only when both the tee-time edge and the weather edge align.

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

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

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 Polymarket Bot UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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%.