On a day when a number of players opened their weeks with low scores, it was none other than Rory McIlory who headlined a group of four men that put forth opening rounds of 64 on Thursday at the 2012 BMW Championship.

McIlroy is tied with Webb Simpson, Bo Van Pelt and Graham DeLaet for the 18-hole lead at 8-under, while Tiger Woods and Vijay Sing lurk just one stroke off the pace after firing 7-under rounds of 65 to open the tournament. After Woods and Singh sit a tight field of notable contenders that include Adam Scott (4-under) and Phil Mickelson (3-under).

Chicago native Mark Wilson was unable to finish in red numbers on Thursday despite the impressive scoring across the board, and currently sits in a tie for 57th place after an even par round of 72. Wilson bogeyed both the 17th and 18th holes to spoil a day where he recorded 12 pars, and now faces an uphill battle in Friday's round.

Stay with this StoryStream for more coverage of the BMW Championship, and be sure to head over to SB Nation's golf hub for more analysis on this year's FedEx Cup.