McIlroy, 21, Leads Masters by 4 Strokes: Fourteen years after another 21-year-old became the youngest Masters champion in history, Rory McIlroy has a four-stroke lead going into today's final round. "I'm not getting ahead of myself," said McIlroy. "I know how leads can dwindle away very quickly." He's 237 days older than Tiger Woods was in 1997 when he claimed his first green jacket. Woods trails by seven shots.