Updated

NEW YORK (Reuters) - Tiger Woods has entered this month's Barclays Classic, the first of the PGA Tour's four lucrative FedExCup playoff events, where he needs to perform well to advance.

The American world number one lies 108th in the FedExCup standings and is likely to drop lower after this week's Wyndham Championship in North Carolina which he has opted to skip.

Only the top 100 players in the standings after the August 26-29 Barclays Classic in Paramus, New Jersey qualify for the second playoff event, the September 3-6 Deutsche Bank Championship in Norton, Massachusetts.

Woods, who officially entered the Barclays on Thursday. needs to remain in the top 125 to retain his place in the field for the Barclays.

By his own admission, the 34-year-old is struggling to regain consistent form after taking a self-imposed five-month break following revelations about his marital infidelities.

Woods made an encouraging return to the PGA Tour when he tied for fourth at the U.S. Masters in April and again at the U.S. Open in June but the rest of his year has been forgetful.

Among the low points were a missed cut at the Quail Hollow Championship, a withdrawal from the Players Championship due to a neck injury and a tie for 78th at this month's WGC-Bridgestone Invitational -- the worst four-round result of his career.

"I feel like my game is a lot better than it was last week," Woods told reporters after sharing 28th place at last week's U.S. PGA Championship, the year's final major.

Woods, a 14-times major champion, has not won anywhere in the world since the Australian Masters last November.

(Writing by Mark Lamport-Stokes in Irvine, California; Editing by Frank Pingue)