 He was permanently promoted to the first team in the summer of 2018 after the club had suffered relegation to the Danish second tier.Westergaard signed a one-and-a-half-year contract extension with Lyngby on 4 January 2019.Six months later, after Lyngby had reached promotion to the Superliga after one season, he signed another contract extension, keeping him at the club until the summer of 2022.