Lancaster played semi-professional football for Welwyn Garden City, Hertford Town, Berkhamsted and Wealdstone.

Lancaster assisted White at Shanghai Shenxin in China League One[10] and with the Chinese Taipei national football team.

[12] Lancaster was appointed the head coach of the Chinese Taipei national team on 18 January 2019, his first senior management position.

[13][14] Lancaster secured his first win charge on 11 June 2019, when Taiwan defeated Hong Kong 0–2,[15] with both goals scored by Chen Hao-wei.

[17] Lancaster's time in Utah came to an end in December 2020 when it was announced that the Royals would cease operations and their player-related assets transferred to the expansion Kansas City NWSL team.