[3] Haven Denney and Brandon Frazier first teamed up in 2002 as roller skaters before switching to the ice.

[9] In the 2012–13 season, Denney/Frazier finished 4th at the 2012–13 ISU Junior Grand Prix event held in Lake Placid, New York.

For the 2013–14 season, the team placed fifth at both their Grand Prix events, the 2013 Skate Canada International and 2013 NHK Trophy.

Turning to the Grand Prix series, they won their first GP medal, silver, at the 2014 Skate America and then finished fourth at the 2014 Rostelecom Cup.

[11] Denney put no weight on her right leg for six weeks and then began physical therapy before returning to the ice in October 2015.

Initially limited to basic stroking and crossovers, Denney began cautiously practicing jumps in late November.

By April 2016, they were training with Rockne Brubaker and Stefania Berton at the Fox Valley Ice Center in Geneva, Illinois.

[17] Denney/Frazier won the bronze medal at their Challenger event to start the season, the 2018 CS Autumn Classic International.

[17] At the 2019 U.S. Championships, Denney/Frazier won the silver medal, placing third in the short program and second in the free skate, making some errors on their jumps in the latter.

[20] At their second Grand Prix event, the 2019 Internationaux de France, they placed third in the short program, with Denney landing an underrotated triple Salchow jump.

[21] She landed a clean triple Salchow in the free skate, though botched their intended three-jump combination and Denney/Frazier again placed second in that segment, winning their second bronze medal of the season.

[22] Denney/Frazier struggled at the 2020 U.S. Championships, beginning in the short program where Denney fell on their throw and then popped their planned triple jump as well, resulting in them finishing sixth in that segment.