WASHINGTON, March 25 (Xinhua) -- Tiger Woods won the PGA Tour's Arnold Palmer Invitational on Monday and reclaimed the world number one ranking for the first time since October 2010.

With his eighth Bay Hill course triumph, the 37-year-old Woods replaces Northern Ireland's Rory McIlroy atop the world rankings.

The 14-time major champion has previously spent a record 623 weeks on top of the world.

But he has not topped the rankings for nearly three years after injuries and an infamous sex scandal saw him tumble from the top 50.