After blistering the course at Aronimink Golf Club in Newtown Square, Pa.in the first round for 8-under, Woods was even par in the second round - leaving him tied for 12 place five shots behind the leader.
Woods moved to seven-under par with a birdie at his 10th hole. I got a couple rounds in front of me, 36 holes to try and win this tournament.
"We all benefit from Tiger Woods playing well, " McIlroy said after the round.
"So, it was just one of those days you had to stay aggressive".
Australia's Dimitrios Papadatos leads by four shots on 16-under par thanks to a second successive, eight-under 63 with Sharvin tied 29th on five-under after a 66 and Galbraith three-under after a 70. And as of right now", he said, pausing to smile, "I'm one back. I get good support around here. "I've been failing a lot, so it would be nice to turn the switch and kind of clutch up".
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Tiger Woods walks to the 11th hole tee box during the second round of the BMW Championship golf tournament at Aronimink GC. "I should have been a few better".
American Xander Schauffele surged into the outright lead at 13 under courtesy of a 64, which has him in the driver's seat at the elite 70-man BMW - the penultimate playoffs event. "I said to my caddie, 'How about tomorrow?' Just got to get through today". Matsuyama suddenly is in position to be among the 30 players who advance to East Lake in Atlanta in two weeks for the Tour Championship.
Woods and McIlroy still had to hit the shots and make the putts.
McIlroy had been a shot clear of Woods at nine-under par after 15 holes when Woods headed for the clubhouse.