[3] She won gold in the 50 metre breaststroke at the 2015 World Aquatics Championships in Kazan, Russia.

[4] Jennie Johansson competed in 2016 Summer Olympics in Rio de Janeiro, where she participated in the 100 m breaststroke and 4 × 100 m medley relay events, but she did not reach the finals.

[5] In November 2016, it was revealed that Jennie Johansson and fellow Swedish swimmer Michelle Coleman had been barred from participating in international events representing Sweden, due to disciplinary reasons.

[6] In March 2017, Jennie Johansson competed in the Edinburgh International Swim Meet and won the 100 m breaststroke event with a time of 1:07.43.

[9] Jennie Johansson competed in the 2017 Stockholm Swim Cup in the 50 m breaststroke event which she won the prelims with a time of 30.39, setting a world lead.