The self-proclaimed "itty bitty guy," Green was nicknamed the "Ageless Wonder" by his peers and the general media for his remarkable ability to maintain a high level of play well into the twilight of his career. Green was also known for his speed and was one of the fastest players in the history of the NFL.
In 1982, Green was selected by his teammates as captain, was named a first team All-American, and was the Most Valuable Player in the Lone Star Conference. During his senior year, Green had 56 tackles, four interceptions and two punt returns for touchdowns. He was selected to the Lone Star Conference Team of the Decade for the 1980s.
In track and field, Green set numerous national and conference records and earned ten All-America certificates. His first meet was in 1982 in San Angelo, Texas, where he ran a 10.08 in the 100 meters. The mark still stands as the all-time best in the Lone Star Conference. At the 1982 NCAA championships Green finished 6th in the 100 meter dash and 7th in the 200 meter dash.
Green's all-time collegiate best in the 100 was 10.08, 20.50 in the 200 meters and 45.90 in the 400 meters. He was named the most valuable track performer at the 1982 and 1983 Lone Star Conference Championships. He won gold medals at the LSC meet in the 100 meters in 1981 and in the 100 meters and 200 meters in 1982 and in 1983.
Green was named to the NCAA Division I All-America roster in 1981 and 1982, and was on the NCAA Division II All-America team in five events in 1981 and 1982. He was NAIA All-America in 1981 and 1982 in four events.
"Seeing Darrell come in to the NFL at his size
and background, and to last as long he did, he
was extraordinary. To stay healthy, not get hurt, and
perform at his level was an absolutely amazing
feat. He was a classic player and a classic person."
"Darrell signified perseverance and competitiveness,
and he was an all-around great guy at the same time.
We were able to watch him for 20 years, and as far
as I'm concerned he never failed us. He was always a
stalwart in the community and he always maintained a
In his last game on December 29, 2002, Green and the Redskins defeated the Dallas Cowboys 20-14 at FedExField. During the game, he returned a punt on a reverse from Champ Bailey for 35 yards which is the longest gain of any kind for a player his age (42 years, 327 days).
In his 20 NFL seasons, Green recorded 54 interceptions, which he returned for 621 yards and six touchdowns. He also added two additional touchdowns on interception returns in the post season. Three times he recorded a career-best of five interceptions in a season (1984, 1986, and 1991). Green also returned 51 punts for 611 yards and recovered 10 fumbles, returning them for 131 yards and two touchdowns. Also known for staying healthy, he missed just 25 games throughout his career.
"Darrell epitomizes what an NFL player should be. In my
rookie season, he took me in and showed me the ropes,
all the while we were competing for the same position.
I looked up to him as a great player and a great man."
Green was in the news on February 16, 2010, his 50th birthday, for reportedly running a 4.43 second 40-yard dash.
On April 26, 2013, Green announced that he had accepted a position as Special Assistant for Student–Athlete Development and Public Relations at the University of Mary Washington in Fredericksburg, Virginia. 
"This is incredible. It's so special. This
literally transcends football, everything I have
gone through to do what I was able to do. It
was more than the ability to run and cover. It
just goes so far beyond that."
In 2004, Green was inducted into the College Football Hall of Fame and was inducted into the Pro Football Hall of Fame on August 2, 2008. His fellow Hall of Fame classmates include former Redskins teammate Art Monk, and his former position coach Emmitt Thomas. Green has also been inducted into the NCAA Division II Hall of Fame, the Texas Sports Hall of Fame, the Lone Star Conference Hall of Honor and the Javelina Hall of Fame.
In December 2007, Green was voted the All-Time Redskins Legend in a WUSA-TV Channel 9 online poll.
Green has a professional services company that manages his appearances and autograph requests, www.DarrellGreen.com. He has also recently started an online fitness company promoting increased physical activity through simply walking called WalkFitHealth Nation.