He represents IL Skjalg, and was the 200 metres Norwegian Athletics Championships winner in 2019 and 2020.

In September, he participated in the 2013 Norwegian Youth Athletics Championships [no], where he won bronze in the 200 metres in the U16 class.

In the outdoor season, he participated in the National Events at the 2016 Bislett Games, finishing 2nd in the 200 metres.

He won bronze in both the 100 and 200 metres at the 2016 Världsungdomsspelen, where he also qualified for the 2016 World U20 Championships in Athletics after running 21.31.

[5] At the World U20 Championships, held in Bydgoszcz, Poland, he posted a 0.3-second personal best in the 200 m of 21.00, despite a 1.2 m/s headwind.

During the 2017 Norwegian Indoor Athletics Championships [no], he won a bronze medal in the 60 metres, setting a personal record of 6.89 seconds in the final.

Norway competed in the First League (second-best division) at the 2017 European Athletics Team Championships, and Hove Johansen participated in the 4 × 100 metres relay, finishing third.

[10] Johansen was selected to participate in the 2017 Nordic U20 Athletics Championships [no], winning silver in the 100 and 200 metres behind Henrik Larsson.

Hove Johansen won two silver medals at the 2017 Norwegian Athletics Championships, in both the 100 and 200 metres, losing only to Jonathan Quarcoo in both events.

At the 2018 Norwegian Relay Championships [no], Johansen contributed to IL Skjalg's 4 × 100 m victory in the men's and mixed categories.

He won two silver medals at the 2018 Norwegian Athletics Championships, losing only to Jonathan Quarcoo in the 100 and 200 metres.

That result was repeated at the 2018 Norwegian U20 Championships [no], where Quarcoo won the 100 and 200 metres ahead of Johansen.

On 1 August, he set a personal record in the 100 metres at the Kuortane Games in Finland, with a time of 10.43 seconds.

Hove Johansen participated in the 2021 European Athletics Indoor Championships, but was eliminated in the preliminary heats of the 60 metres.

Outdoors, he broke the 21-second barrier for the first time in June 2021, running 20.98 at the Night of Highlights, and he improved his personal best to 20.86 the next day in Lillehammer.