May 20, 2021 CE
First Round: Conners Leads
Corey Conners shot a 5-under-par 67 to take the first-round lead, while Phil Mickelson opened with a 2-under 70.
Chronological Storyline (5 Milestones)
May 21, 2021 CE
Second Round: Mickelson Takes Lead
Phil Mickelson shot a 3-under 69 to take a one-shot lead over Louis Oosthuizen at 5-under par heading into the weekend.
May 22, 2021 CE
Third Round: Mickelson Maintains Lead
Phil Mickelson maintained his one-shot lead after a third-round 70, sitting at 7-under par, ahead of Brooks Koepka who was at 6-under.
May 23, 2021 CE
Historic Milestone: Oldest Major Champion
At 50 years, 11 months, and 7 days old, Phil Mickelson became the oldest major champion in golf history, surpassing Julius Boros who won the 1968 PGA Championship at 48.
By Peetlesnumber1 - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=146439676
May 23, 2021 CE
Final Round: Mickelson Wins
Phil Mickelson won the 2021 PGA Championship by two strokes over Brooks Koepka and Louis Oosthuizen, finishing at 6-under par for the tournament.