McIlroy shot 7-over 78 at Conway Farms just outside of Chicago, putting him almost dead last in the 70-player field and almost certainly out of the running to making the top 30 in FedEx Cup points and advancing to the Tour Championship next week in Atlanta.
The dagger hole for the former world No. 1 was the first, his 10th of the day. After a 224-yard drive into the fairway at the 360-yard par 4, McIlroy tugged his wedge from 120 yards into a greenside bunker. From there, McIlroy came unraveled. His bunker shot went long of the pin, still not on the green. Then after getting his ball inside 5 feet with his fourth shot, McIlroy incredibly three-putted for triple-bogey 7.
That hole capped off a three-hole stretch where McIlroy played 5-over-par golf.
Rory McIlroy entered the week at 41st in FedEx Cup points, but has dropped precipitously as he has tumbled down the leaderboard. He is already double-digits shots behind the lead, making a charge in the final 54 holes not only unlikely but nearly impossible.