Having already had Adam Rippon collaborate as a choreographer the previous season, Bell added Rippon as part of her coaching team in addition to having him again choreograph her short program, this time to Britney Spears music on Rippon's recommendation.
 Starting her season on the Challenger series at the 2019 CS Nebelhorn Trophy, Bell placed first in both segments to win the event, her first international gold medal.

For her first Grand Prix assignment, Bell competed at the 2019 Internationaux de France, placing third in the short program with only an unclear edge warning on her triple flip.
 In the free skate, Bell underrotated a triple Lutz, but otherwise landed all jumps cleanly and placed second in the segment, edging out reigning World and Olympic champion Alina Zagitova.
She was third overall, behind Alena Kostornaia and Zagitova, taking her second Grand Prix medal.
 Bell said she was "proud of how this competition went."
 Competing next at the 2019 Rostelecom Cup, Bell placed third in the short program despite falling on her jump combination.
 She was third in the free skate as well, winning another bronze medal.

Bell placed third in the short program at the 2020 U.S. Championships when, after landing her jumps successfully, she fell in her step sequence.
 She remarked after "today, maybe I felt a little too good."
 Placing second in the free skate with no errors other than an underrotated triple Lutz, Bell won the silver medal, and was the highest-finishing medalist eligible for senior international competition, the gold medal going again to Alysa Liu.
 Her free skate received a standing ovation, which she called "a very special feeling.
 I hadn’t had that before in my career."
 Bell subsequently eschewed attending the Four Continents Championships in Seoul, looking ahead to the 2020 World Championships in Montreal, but these were cancelled as a result of the coronavirus pandemic.
Having already had Adam Rippon collaborate as a choreographer the previous season, Bell added Rippon as part of her coaching team in addition to having him again choreograph her short program, this time to Britney Spears music on Rippon's recommendation.  Starting her season on the Challenger series at the 2019 CS Nebelhorn Trophy, Bell placed first in both segments to win the event, her first international gold medal.
For her first Grand Prix assignment, Bell competed at the 2019 Internationaux de France, placing third in the short program with only an unclear edge warning on her triple flip.  In the free skate, Bell underrotated a triple Lutz, but otherwise landed all jumps cleanly and placed second in the segment, edging out reigning World and Olympic champion Alina Zagitova. She was third overall, behind Alena Kostornaia and Zagitova, taking her second Grand Prix medal.  Bell said she was "proud of how this competition went."  Competing next at the 2019 Rostelecom Cup, Bell placed third in the short program despite falling on her jump combination.  She was third in the free skate as well, winning another bronze medal.
Bell placed third in the short program at the 2020 U.S. Championships when, after landing her jumps successfully, she fell in her step sequence.  She remarked after "today, maybe I felt a little too good."  Placing second in the free skate with no errors other than an underrotated triple Lutz, Bell won the silver medal, and was the highest-finishing medalist eligible for senior international competition, the gold medal going again to Alysa Liu.  Her free skate received a standing ovation, which she called "a very special feeling.  I hadn’t had that before in my career."  Bell subsequently eschewed attending the Four Continents Championships in Seoul, looking ahead to the 2020 World Championships in Montreal, but these were cancelled as a result of the coronavirus pandemic.
Mariah Bell