In March 2013 he directed Duke diver Nick McCrory to his third NCAA title on the platform, matching titles he won in 2010 and 2011. McCrory also posted runner-up finishes on the 1-meter and 3-meter at the NCAA meet, making him a nine-time NCAA All-American. He was the 2013 Atlantic Coast Conference champion in all three disciplines and is the most decorated diver in ACC history with a total of eight conference titles. For his efforts McCrory was named the 2013 ACC Diver of the Year for the third time in as many years of competition. Also at Duke, Johansen coached Abby Johnston to six ACC titles, including a sweep of all springboard events in 2010 and 2011. In all, Duke divers won 15 ACC titles in Johansen's six seasons.
USA Diving named Johansen the head coach for the 2012 Olympic Games in London. Under Johansen's direction, the United States took home one gold, one silver. and two bronze medals from London. Johansen's divers from Duke, Johnston and McCrory, won silver and bronze, respectively. It was the most diving medals for the United States since the 1988 Olympic Games. Johansen has spent seven years as a U.S. National Team coach, including serving as head coach of the 2011 World Championship team as well.
Johansen is a former member of the USA Diving National Team and has coaching experience at the club, collegiate, national and international level. In addition to his work at the 2012 Olympic and 2011 World Championships, Johansen coached the U.S. Diving World Championship team in 2005 and U.S. Diving Junior World Team in 2002. He founded the U.S. Elite Diving Academy in Columbus, Ohio in 2001, developing it into one of the largest and most successful junior and senior programs in the nation. Under Johansen's direction, the U.S. Elite Diving Academy won the U.S. Diving Junior Team title in 2005 and in 2006 captured the Junior and Senior team titles.
Johansen and his wife Jenny, herself a two-time Olympic diver, have one daughter, Lina Mei.