Nicolai Boilesen

Ajax

Boilesen started playing football in local amateur clubs Lille Hema IF and Skovlunde IF in Ballerup and Skovlunde, before joining top-flight club Brøndby IF in 2004. As a left-footed central defender, Boilesen saw Danish senior international and former Brøndby player Daniel Agger as his role-model. Boilesen made his debut for the Denmark U17 national team in July 2007, and played a total 38 games for various Danish youth teams in his time at Brøndby. Having had various trial periods with clubs such as Manchester United, Fiorentina and Chelsea, and with his Brøndby contract expiring in December 2009, Boilesen agreed a move to the Netherlands, with Ajax paying Brøndby 4 million DKK in compensation (roughly €500,000). Followed by a number of top European clubs, Boilesen chose Ajax on advice from fellow Danish youth international and Ajax player Christian Eriksen. Signing a four-year contract, binding him to the club until the Summer of 2013, he initially joined the youth ranks where his first season with Ajax was stalled by injuries. Once recovered he solidified a starting position for Ajax A1, the clubs' under-19 team, and even made appearances for the reserves team Jong Ajax.

Boilesen joined the Ajax first team ahead of the 2010–11 season, where he was given the number 32 shirt. He made his professional debut on 3 April 2011, as he played the second half of Ajax' 3–0 victory against Heracles Almelo being substituted on for Daley Blind. By the 2011–12 season, he…

In May 2018 he was named in the Denmark national team's preliminary 35-man squad for the 2018 World Cup in Russia but did not make the final 23. He was named in Denmark's 26-man squad for the UEFA Euro 2020 competition, that took place in 2021 because of the COVID-19 pandemic. Denmark played all three group matches in Parken Stadium, Copenhagen.

After retiring, it was confirmed in July 2025, that Boilesen had been appointed assistant coach of Denmark U16. He left the position in February 2026.

Club

As of 16 October 2022

International

As of match played 26 June 2021.

As of match played 26 June 2021. Scores and results list Denmark's goal tally first, score column indicates score after each Boilesen goal.