Born in Ottawa, Chiarelli trained from 1999-2006 at the Nepean-Corona School of Gymnastics. When her father accepted the position of GM for the Boston Bruins, she moved to Boston and began training with Brestyan's Gymnastics.
2008 - 2010
Because Chiarelli is Canadian but lives in Boston and trains at an American club, she has been able to compete at both the US and Canadian national championships. She competed level 10 in 2008 then became a junior international elite and competed at the US Junior National Championships in 2009 and 2010. Chiarelli's club in Canada is listed as Bluewater Gymnastics of Sarnia, Ontario.
Senior career
2011
In May, Chiarelli competed at the Canadian Championships in Charlottetown, Canada. She placed sixth in the all around final with a score of 52.375. In event finals, she placed eighth on balance beam scoring 12.175 and third on floor scoring 13.525. Later that year, she was chosen to represent Canada at the Japan Cup and later was chosen as an alternate to the Canadian Team at the 2011 World Championships. In October, Chiarelli competed at the 2011 Pan American Games in Guadalajara, Mexico. She helped the Canadian team win the silver medal in the team event with an individual all around score of 52.625. This score gave her 13th place in the all around competition. In event finals, she placed fifth on balance beam with a score of 13.075.
2012
In January, Chiarelli participated in the London Prepares series where Canada qualified a full team to the 2012 Summer Olympics. She competed on vault scoring 14.500, balance beam scoring 13.400, and floor scoring 13.433. In April, Chiarelli competed at the 2nd Artistic Gymnastics Meeting in San Bernardo, Brazil, with gymnasts from Brazil, Canada, and South Korea. She won the floor final with a score of 14.225. In June, Chiarelli was one of the twelve gymnasts chosen to compete at the Final Olympic Selection meet to decide who would represent Canada at the 2012 Summer Olympics, but she had to withdraw due to back problems.
2013
In her first major competition since discovering that she had stress fractures in her lower back, at the 2013 Elite Canada held in Edmonton, Alberta, Chiarelli was 5th on vault and 1st on beam Chiarelli accepted a full scholarship to the University of Michigan. In her sophomore year, Chiarelli was named a two-time All-American for her Balance Beam and Floor Exercise. She was also named to the Big-Ten First Team as she guided the Wolverines to an NCAA Championship. In her senior year at the University of Michigan, Chiarelli was named team captain alongside Nicole Artz and helped the team win a Big Ten Championship title for the fourth year in a row.