Jakobsen began his car racing career in his homeland, competing for FSP in the 2018 F4 Danish Championship.[2] Having initially struggled in the first half of the year, the Dane scored three category podiums and a pole position in the final third of the campaign, thus finishing sixth in the standings.
Near the end of the year, Jakobsen also made two cameo appearances in the F4 South East Asia Championship, where he took his first win in single-seater motorsport at Sepang.
2019
The following season, Jakobsen remained with FSP in Danish F4.[3] After missing the season opener, a triple of podiums at Jyllandsringen, which included a win in Race 3, commenced Jakobsen's title campaign. A pair of victories at Djursland and Kinnekulle followed respectively, before the Dane took a hattrick of victories at Padborg Park. Three more wins followed, as Jakobsen locked out the championship in dominating fashion in the season finale, finishing 78 points ahead of his nearest challenger, Jonas Lindhard Nielsen.[4] At the end of the campaign, Jakobsen represented Denmark at the inaugural FIA Motorsport Games Formula 4 Cup.[5]
Endurance career
2020
For 2020, Jakobsen switched to prototype racing, competing in the LMP3 category of the European Le Mans Series for RLR MSport alongside James Dayson.[6] He finished his rookie campaign, during which he was described as having shown "maturity beyond his years", tenth in the standings, with a sole podium coming at the season opener in Le Castellet.[7]
2021
Jakobsen stayed with RLR for another year in the ELMS, this time partnering Mike Benham and Alex Kapadia.[8][9] His team once again started their campaign out with a podium, a second place in Barcelona, but failed to finish three of the remaining five races, thus dropping to ninth by season's end.
2022
Going into his third season of the European Le Mans Series, Jakobsen made the move to Cool Racing.[10] Commencing the season at Paul Ricard, Jakobsen started out in strong fashion, taking pole position and helping his team to win the four hour-long race.[11][12] Another pole position came at the next round in Imola, which would eventually result in a podium finish.[13][14] The following event, held in Monza, would bear less fruit however, as the team was forced to retire from the race. Following another third place in Barcelona, where Jakobsen scored his fourth pole in four races, a collision by the Dane's teammate Maurice Smith meant the end of the race in Spa-Francorchamps, which made the team's title aspirations seem unlikely going into the season finale at Portimão.[15][16] In spite of the uphill task, Jakobsen managed to take pole position once more, making him the season's only LMP3 polesitter, and ended up winning the race.[17] With title rivals Inter Europol Competition retiring late in the race following a car failure with a subsequent collision, Jakobsen, Smith and Mike Benham were crowned champions of the ELMS' LMP3 category.[18]
Progression to the LMP2 class was in order for the 2023 season, as Jakobsen remained with Cool Racing in the ELMS.[20] Before embarking on his European season however, the Dane teamed up with Nicolas Lapierre and amateur Alexandre Coigny in the Asian Le Mans Series.[21] Despite Jakobsen setting the fastest lap in the second race at Dubai, the team experienced a difficult opening event, as Coigny collided with a GT car in Race 1 and the outfit finished fifth on Sunday. For the event at the Yas Marina Circuit, Lapierre would step away from driving duties in order to give Jakobsen more seat time during the races, which ended up paying off immediately, the Dane taking a commanding victory on Saturday.[22] On Sunday, a pair of penalties due to an infringement regarding minimum pit stop time and a collision caused by Jakobsen would end the outfit's chances of obtaining victory, as Jakobsen and Coigny finished third, which earned them the runner-up spot in the championship.[23][24]
The team's European campaign started positively, as a third place in class at Barcelona was followed by a second place at Le Castellet.[25][26] During the third round in Aragón however, Jakobsen caused the #37 to retire for the only time that year, missing his braking point for turn one and colliding with the fellow Cool Racing car of José María López.[27][28] The next race at Spa-Francorchamps saw a return to form, with Jakobsen playing a starring role in the team's first Pro-Am victory and overall second place.[29][30] Another class win followed during the 4 Hours of Algarve, where a late 10-second-penalty for the leading Mathias Beche gifted the #37 another 25 points, placing them into championship contention for the season finale.[31] Despite an early spin by Coigny during the second race at Portimão, Jakobsen was able to make up ground during the final stints, getting within a second of the race-winning AF Corse of Ben Barnicoat.[32][33]
Jakobsen remained with Cool Racing's ELMS outfit in 2024, being partnered by silver-ranked Lorenzo Fluxá and Super Formula champion Ritomo Miyata in the LMP2 Pro class.[37] At the opening round in Barcelona, the Dane inherited the lead due to a fast pit stop and held on to win.[38] Jakobsen found himself leading once again at Le Castellet, though his race was ended by a gearbox failure with 43 minutes to go.[39][40]
