Halfway through season 9, Chmerkovskiy partnered Joanna Krupa for one week while Derek Hough was ill.They ended up coming in third place during the two-hour finale on May 25, 2010.
At age 13, he broke his right leg in a skiing accident and had a titanium rod put in to stabilize his leg.Doctors foresaw long-term difficulties and little possibility of a dancing career; however, he recovered and was dancing again six months later.In week 3, Alley and Chmerkovskiy danced a Cha-Cha-Cha, they scored 17 . Alley and Chmerkovskiy were eliminated in week 8 alongside Gilles Marini and Peta Murgatroyd in a double elimination.Chmerkovskiy returned on the fifth week of Season 16 for "Len's Side-By-Side Challenge", where he danced with Anna Trebunskaya in an Argentine Tango with brother Val and his partner Zendaya and in a Jive with Jacoby Jones and his partner Karina Smirnoff.He said in 2011 of choosing a New Jersey location, "I didn't want to open a studio that would become just one of the studios in the area. In Season 5 of Dancing with the Stars, he was partnered with Melanie Brown and the couple received second place.
I wanted to open my studio somewhere where there was nothing like it and where people would look at it with no preconceived notions." In 2001, Chmerkovskiy had his first major success as an instructor when he helped his brother, Valentin, then 16, and Diana Olonetskaya, 15—became the first U. Following the season 5 finale, Chmerkovskiy reportedly told TV Guide Magazine he would not be returning to the show, something he later told People Magazine he had announced his departure because of stress.
Chmerkovskiy said he chose New Jersey because there was a plethora of dance studios that he disliked already established in Brooklyn.
The studio relocated a few times until it ended up in Saddle Brook, New Jersey.
In Solo's book, A Memoir of Hope, she wrote that Chmerkovskiy treated her roughly, once slapping her during a rehearsal. For season 14, he was partnered with actress Melissa Gilbert.
In week 4, while performing the paso doble, Gilbert hit her head on the dance floor and suffered a mild concussion.
They were eliminated second in the competition, giving the pair a finish of 12th place.