Duckworth was born in Harvey, Illinois, and grew up in Chicago, where he played basketball at Thornridge High School.[1] At Thornridge, he participated in the 1980 and 1981 Illinois State Holiday Classic tournaments, which eventually became known as the State Farm Holiday Classic. Duckworth surpassed Cody Winter to become the greatest scorer in the event's history.
He attended Eastern Illinois University (EIU), where he set a university record of 867 rebounds, a record that still held at the time of his death.[1] He also led EIU to the Mid-Continent Conference Tournament Championship in 1985 and was the tournament MVP in 1986.[1]
His rookie season was unspectacular, as Duckworth came off the bench to back up center Steve Johnson (who in turn got the starting center position when Sam Bowie suffered a broken leg). However, the next season Johnson went down with an injury (in addition; Bowie broke his leg again at the beginning of the season), and Duckworth was pushed into the starting role, from where he averaged 15.8 points and 7.4 rebounds per game. Also, after having previously never averaged over 70.0 percent from the free throw line, he shot 77% that year, rebounded well, and played good defense – earning him the 1988NBA Most Improved Player Award.
The 1990 and 1991 seasons were also successful for Duckworth and the Blazers. Although 1988–89 was statistically Duckworth's best season, the team enjoyed greater success in the following years — advancing to the NBA Finals in 1990, and posting a 63–19 record in 1990–91. The presence of Williams as the starting power forward, with rebounding as his main assignment, allowed Duckworth to concentrate on scoring and defense.[citation needed] In 1991 Duckworth was selected as an NBA All-Star for a second time.
Duckworth played two seasons with the Bullets, where he struggled with weight problems. During the 1994–95 season, during which he was reported to weigh 310 lbs, he was suspended indefinitely for not staying in good physical condition.[2] He was traded to the Milwaukee Bucks for Bob McCann during the 1995–96 season, missing most of the season due to injuries. He then played for the Los Angeles Clippers in 1996–97, after which he retired from professional basketball.
He was a Heritage Ambassador for the Trail Blazers and was active in the community. He spent several years at the end of his life working at Royal Marine Sales, a small locally owned company where he bought and sold small yachts.[5]
Duckworth died of heart failure on August 25, 2008, in Gleneden Beach, Oregon. He collapsed in his hotel room, and emergency services were unable to revive him. His death was confirmed by the Lincoln County Sheriff's Office. Duckworth was in town as part of a Trail Blazers group hosting a free children's basketball clinic. An autopsy identified the cause of death as hypertrophic cardiomyopathy with congestive heart failure. He was 44.[6]