As Rory McIlroy again tries to complete the career Grand Slam with a Masters victory, he is keeping his quest in perspective.
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In light of Keegan Bradley's course record at TPC Four Seasons Thursday, take a look at a recap of some of the lowest rounds in PGA Tour history.
Here is Phil Mickelson's victory at the Waste Management Phoenix Open by the numbers, courtesy of PGA Tour research.
Russell Henley's 24-under 256 was the second-lowest score for a 72-hole tournament in PGA Tour history, two shots behind Tommy Armour III in 2003 at the Texas Open.