Passage: Woods grew up in Orange County, California. He was a child prodigy who was introduced to golf before the age of two by his athletic father, Earl Woods. Earl was a single-digit handicap amateur golfer who also was one of the earliest African-American college baseball players at Kansas State University. Tiger's father was a member of the military and had playing privileges at the Navy golf course beside the Joint Forces Training Base in Los Alamitos, which allowed Tiger to play there. Tiger also played at the par 3 Heartwell golf course in Long Beach, as well as some of the municipals in Long Beach.In 1978, Tiger putted against comedian Bob Hope in a television appearance on The Mike Douglas Show. At age three, he shot a 48 over nine holes at the Navy course. At age five, he appeared in Golf Digest and on ABC's That's Incredible! Before turning seven, Tiger won the Under Age 10 section of the Drive, Pitch, and Putt competition, held at the Navy Golf Course in Cypress, California. In 1984 at the age of eight, he won the 9–10 boys' event, the youngest age group available, at the Junior World Golf Championships. He first broke 80 at age eight. He went on to win the Junior World Championships six times, including four consecutive wins from 1988 to 1991.Woods' father Earl wrote that Tiger first defeated him at the age of 11 years, with Earl trying his best. Earl lost to Tiger every time from then on. Woods first broke 70 on a regulation golf course at age 12.When Woods was 13 years old, he played in the 1989 Big I, which was his first major national junior tournament. In the final round, he was paired with pro John Daly, who was then relatively unknown. The event's format placed a professional with each group of juniors who had qualified. Daly birdied three of the last four holes to beat Woods by only one stroke. As a young teenager, Woods first met Jack Nicklaus in Los Angeles at the Bel-Air Country Club, when Nicklaus was performing a clinic for the club's members. Woods was part of the show, and he impressed...

Question: At what age did Tiger Woods win the 9-10 boys' event?
the age of eight