Armstrong returned to Baltimore after serving four years as the assistant men's swimming coach at Stanford. He also had coaching stints at Johns Hopkins, the North Baltimore Aquatic Club (NBAC) and USA Swimming.
In his first season back in Baltimore, Armstrong guided Johns Hopkins to a ninth-place finish at the 2017 NCAA Championships. Ten Blue Jays combined for 21 All-America honors at the championships. Senior Abby Brown led the Blue Jays with a pair of First Team All-America honors in the 100 and 200 Fly.
Armstrong is a 2003 graduate of the University and was inducted into the Johns Hopkins Athletic Hall of Fame in 2015. He will be the fourth active member of the Blue Jay coaching staff that is a graduate of Johns Hopkins, joining Bob Babb `77 (baseball), Jim Margraff '82 (football) and Dave Pietramala `90 (men's lacrosse).
Armstrong joined the Stanford coaching staff in 2012 and worked daily with head coach Ted Knapp on all aspects of team operations. He was instrumental in compiling top-five recruiting classes in the nation in each of his years in Palo Alto. He worked primarily with the distance and IM groups and mentored standout student-athletes Maxwell Williamson (Pan American bronze medalist), Abrahm DeVine (400 IM school record holder) and David Nolan. Nolan won three individual NCAA titles and in 2015 set the NCAA, US Open and American record in the 200 IM. Armstrong's distance and IM group has impressed at the PAC-12 Championships, placing 18 swimmers in the championship finals of the 200 IM over the last four years and claiming three titles each in the 1650 Free and 200 IM. His swimmers have also competed at the World University and Pan American Games.
In the storied history of the Hopkins men's swimming program, Armstrong ranks among the all-time greats as he dominated the distance events. He led the Blue Jays to four top-five finishes at the NCAA Championships, including runner-up finishes in his junior and senior years. He earned All-America honors 18 times, which ranked 10th in school history when he graduated and is still tied for 13th more than 10 years after his career ended.
Armstrong accumulated 10 top-three finishes in individual events at the NCAA Championships, including six runner-up finishes. He was also a member of five relay teams that finished second at NCAAs. When he graduated, he held school records in the 500 Free, 1000 Free and 1650 Free. Armstrong's record in the 1000 and 1650 Free stood until 2014, while his record in the 500 Free stood until 2015.
Armstrong joined the Blue Jay coaching staff after his graduation and helped the Hopkins men to an ECAC Championship as well as a fifth-place finish at the 2004 NCAA Championship. The JHU women finished in sixth place at NCAAs, at the time it was the second highest finish in program history. Armstrong joined the staff at NBAC and spent eight years coaching with Olympic coaches Murray Stephens, Bob Bowman and Paul Yetter. He assisted and implemented daily and seasonal plans for the Elite training groups, which included Olympians Michael Phelps and Katie Hoff. Armstrong was also coach of the USA National Junior Team from 2007 to 2011, before moving to Stanford.
Armstrong and his wife, Toni, are the parents of a son, Owen, and daughter, Evelyn.
Updated August 2017