Education
He attended college at the University of California, Berkeley where he swam for coach Nort Thornton"s California Golden Bears swimming and diving team
He attended college at the University of California, Berkeley where he swam for coach Nort Thornton"s California Golden Bears swimming and diving team
He competed at the 1996 Olympic Games in Atlanta, where he was the butterfly leg of the gold medal 4×100-meter medley relay, which set the world, Olympic, American, and United States. Open records. While in high school, Henderson swam for Curl-Burke Swim Club and was coached by Jeff King. At the United States. Olympic Trials in 1992, Mark entered the meet ranked 2nd in the world in the 100m butterfly, but concentrated too much on his competition and took out his race much too fast (under world record pace at the 50m mark).
He led the race to the final 5 meters where he "bonked" and dropped from first to seventh place.
Mark returned to competition after an 8-month retirement with a vengeance. In 1993, Mark put together wins at the United States. Open and Summer United States. Nationals and two gold medals at the Pan Pacific Championships.
He finished the year with a gold and two silvers at the inaugural Short Course World Championships in Palma, Majorca. In 1994, Mark joined the first United States of America Swimming resident team which was located at the Olympic Training Center in Colorado Springs, Colorado.
lieutenant was run and coached by former world record holder Jonty Skinner.
Mark has worked in the financial industry concentrating on Japan and United States. equities for the past 12 years for the likes of Justice of the Peace Morgan Securities, Citigroup, and now Janney Montgomery Scott. Mark was married in 2007. They currently have two children.
In 2008, Mark was the recipient of the United States of America Swimming Athlete Appreciation Award.