Mark Andrew Henderson in Washington DC is a retired American

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 swimmer

Swimming (sport)

Swimming is a sport governed by the Fédération Internationale de Natation .-History: Competitive swimming in Europe began around 1800 BCE, mostly in the form of the freestyle. In 1873 Steve Bowyer introduced the trudgen to Western swimming competitions, after copying the front crawl used by Native...

. He is an Olympic Champion, 3-time World Champion, 2-time Pan American Games

Pan American Games

The Pan-American or Pan American Games are a major event in the Americas featuring summer and formerly winter sports, in which thousands of athletes participate in a variety of competitions. The Pan American Games are the second largest multi-sport event after the Summer Olympics...

 Champion, 4-time Pan Pacific

Pan Pacific Swimming Championships

The Pan Pacific Swimming Championships is a long course swimming event first held in 1985. The meet was initially staged biennially , to allow for an international championship-level meet in the non-Olympic and non-World Championships years...

 Champion and 5-time U.S. National

United States Swimming Championships

The United States Swimming Championships are held annually in the summer. The event is governed by USA Swimming.-Venues:*1962 - Cuyahoga Falls, Ohio , Chicago, Illinois *1963 - Oak Park, IL , High Point, North Carolina...

 Champion. He competed at the 1996 Olympic Games in Atlanta, where he was the butterfly

Butterfly stroke

The butterfly is a swimming stroke swum on the breast, with both arms moving simultaneously. The butterfly kick was developed separately, and is also known as the "dolphin kick"...

 leg of the gold medal 4 x 100 medley

Medley swimming

Medley is a combination of four different swimming styles into one race. This race is either swum by one swimmer as individual medley or by four swimmers as a medley relay...

 relay, which set the World, Olympic, American, and US Open record.

While in high school, Henderson swam for Curl-Burke Swim Club and was coached by Jeff King

Jeff King

Jeff King may refer to:* Jeff King , American multiple winner of the Iditarod Trail Sled Dog Race* Jeff King , American major league baseball player* Jeff F...

.' He attended college at the University of California, Berkeley

University of California, Berkeley

The University of California, Berkeley , is a teaching and research university established in 1868 and located in Berkeley, California, USA...

 where he swam for Nort Thorton and alongside Matt Biondi

Matt Biondi

Matthew Nicholas Biondi is a three-time U.S. Olympic swimmer in the 1984, 1988, and 1992 Summer Olympics, winning a total of 11 medals...

, Sean Killion

Sean Killion

Sean Thomas Killion is a retired freestyle swimmer from the United States. He competed in at the 1992 Summer Olympics for his native country...

, Roque Santos, and Scott Jaffe

Scott Jaffe

Scott Erik Jaffe is a retired freestyle swimmer from the United States. He swam for his native country in the preliminary heats of the men's 4x200m freestyle event, which ended up in third place in the final. Jaffe studied at the University of California, Berkeley.-References:*...

.

At the US 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 US Open and Summer US 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 Mar Del Plata

Mar del Plata

Mar del Plata is an Argentine city located on the coast of the Atlantic Ocean, south of Buenos Aires. Mar del Plata is the second largest city of Buenos Aires Province. The name "Mar del Plata" had apparently the sense of "sea of the Río de la Plata region" or "adjoining sea to the Río de la Plata"...

.

In 1994, Mark joined the first USA Swimming resident team which was located at the Olympic Training Center in Colorado Springs. It was run and coached by former world record holder Jonty Skinner

Jonty Skinner

John Alexander Skinner and matriculated from Selborne College in East London, is a former South African swimmer turned national American swim coach.- Swimming career :...

.

Mark has worked in the financial industry concentrating on Japan and U.S. equities for the past 12 years for the likes of JP Morgan Securities, Citigroup

Citigroup

Citigroup Inc. or Citi is an American multinational financial services corporation headquartered in Manhattan, New York City, New York, United States. Citigroup was formed from one of the world's largest mergers in history by combining the banking giant Citicorp and financial conglomerate...

, and now Janney Montgomery Scott. Mark was married to Tamara "Blanchard" in 2007. They currently have two children - Brooke Katherine and Brady Andrew.

Charitable Endeavors

Since his retirement, Mark has been a member of USA Swimming's Athlete Executive Council (AEC) (2000–2008), USA Swimming Board member (2000–2008), United States Olympic Committee Athlete Advisory Council (AAC) member (2000–2008), Chair of the AAC (2004–2008), current Board member of the Leo Brien Foundation, Olympic solidarity representative to Zimbabwe (2000–Present), Co-founder of S.W.I.M (Swim With Inspiration and Motivation) learn-to-swim program for inner-city youth in San Francisco, and he is also a participant/ member in the Big Brother Program (1988–Present). In 2008, Mark was the recipient of the USA Swimming Athlete Appreciation Award.