Sebastian Gravlund (born 21 December 2004) is a Danish racing driver set to compete for Ultimate in the LMP3 class of the European Le Mans Series.
Gravlund made his single-seater debut in late 2021, racing in the last three rounds of the F4 Danish Championship for Team Formula Sport, taking a lone podium at Jyllands-Ringen by finishing third in race one as he ended the season ninth in points.
Returning to Team Formula Sport and the F4 Danish Championship the following year, winning all three races in the season-opening round at Padborg Park, before taking further wins at Ring Djursland and Padborg Park to end the year runner-up in points.
In parallel to his campaign in Danish F4, Gravlund joined MP Motorsport to race in the F4 Spanish Championship, taking three points finishes with a best result of seventh at Barcelona as he ended the year 21st in points. Staying with MP Motorsport for his step up to Eurocup-3, Gravlund scored points six times with a best result of sixth at Aragón en route to a 13th-place points finish.
Switching to prototype competition the following year, Gravlund joined Inter Europol Competition to make his LMP3 debut in the second round of the Prototype Winter Series. Racing in two of the season's four rounds, Gravlund finished second on debut at Algarve, before ending the winter with a third-place finish at Barcelona. Gravlund then continued with the team as he competed in all but one rounds of the Le Mans Cup, scoring points at Barcelona and Algarve, and taking a best result of ninth in the latter. At the end of the season, Gravlund partook in the European Le Mans Series rookie tests at Algarve, testing LMP3 machinery for DKR Engineering.
Remaining in LMP3 competition for 2025, Gravlund began the year by racing for EuroInternational in the European Le Mans Series alongside Fabien Michal and Ian Aguilera. Following a retirement in the season-opening race at Barcelona, Gravlund left the team ahead of the following round in Le Castellet. Gravlund then joined Team Virage for a one-off appearance at the Le Mans round of the Le Mans Cup alonside Rik Koen. After finishing sixth in race one and nineteenth in race two, Gravlund remained with the team for the remaining three rounds, replacing Sacha Lehmann in the team's No. 16 car. Racing alongside Theo Micouris, Gravlund finished third on debut at Spa before rounding out the season with an eighth at Silverstone and a fifth at Algarve. Following this, Gravlund tested for LMP3 machinery for RLR MSport in the European Le Mans Series rookie tests in Algarve.
In 2026, Gravlund joined Ultimate for his return to the LMP3 class of the European Le Mans Series.
() (Races in bold indicate pole position) (Races in italics indicate fastest lap) (Races with * indicate most race laps led)
() (Races in bold indicate pole position) (Races in italics indicate fastest lap)
() (Races in bold indicate pole position) (Races in italics indicate fastest lap)
() (Races in bold indicate pole position; results in italics indicate fastest lap)
() (Races in bold indicate pole position; results in italics indicate fastest lap)
<sup>*</sup> Season still in progress.