Stefan Leeder Nielsen (born 31 October 1994) is a British speedway rider.
[1][2] Nielsen has a British mother and Danish father, and was born in Esbjerg, Denmark.
[5] Also that year he won the British Under-19 Championship, a title that he retained in 2013, only the second rider to achieve that feat.
In 2013 he stayed with the Fen Tigers and rode in the Premier League with Somerset Rebels, averaging close to five points but losing his place towards the end of the season.
[11] In 2023, he re-signed for Birmingham for the SGB Championship 2023, in doing so he also became a club asset after they purchased his contract from Swindon.