Long before he had teed off on Friday, Brooks Koepka saw his lead in the US PGA Championship increase from one stroke to four.
Brooks Koepka and Danny Lee pulled clear of the rest of the field at the US PGA Championship.
After opening with a six-under 64 at the US PGA Championship, Danny Lee was satisfied.
After Brooks Koepka set the clubhouse lead at seven under, Rory McIlroy endured a tough start at the US PGA Championship.
Matt Kuchar continued his dominance at the Mayakoba Golf Classic, opening up a four-shot lead.
Hudson Swafford leads the CareerBuilder Challenge but Phil Mickelson produced another impressive round on Friday.