Leworthy made his Spurs debut in the North London derby, against arch rivals Arsenal, that ended in a 2–0 defeat at White Hart Lane in front of a crowd of 40,399 on 17 April 1985.
He played alongside the likes of Glenn Hoddle, Ossie Ardillies, Graham Roberts and Steve Perryman and went on to make a further ten appearances in total, scoring 4 goals.
He was loaned to Colchester Utd towards the end of the 1990/1991 season, scoring 4 goals in 9 appearances and helping the U's to a 2nd-place finish in the Vauxhall Conference as runners-up to Barnet.
He remained in the division following Farnborough's relegation and was sold to newly promoted Dover Athletic in a move that saw the non-league transfer record broken when the Kent club paid £50,000 for his services.
[citation needed] Leworthy's career began to draw to a close with a period at Conference South club Havant & Waterlooville that included a spell as manager.