Westlake came off the bench seconds before scoring with an explosive volley after Sebastien Carole's cross was not properly cleared by the Latics.

The visitors had earlier seen good chances for Mark De Vries and Wayne Andrews go astray as Oldham clung on.

Oldham keeper Mark Crossley also tipped a David Prutton header over the bar, while the home side never seriously tested Leeds keeper Casper Ankergren.

Oldham: Crossley, Eardley, Hazell, Gregan, Bertrand, Liddell, Kalala, Kilkenny, Taylor, Ricketts (Wolfenden 88), Davies.
Subs Not Used: Allott, McDonald, Thompson, Trotman.

Booked: Gregan, Davies.

Leeds: Ankergren, Richardson, Marques, Heath, Prutton, Douglas, Hughes, Thompson (Westlake 90), Carole, De Vries, Andrews.
Subs Not Used: Huntington, Weston, Clapham, Ameobi.

Booked: De Vries, Marques.

Goals: Westlake 90.

Att: 10,054

Ref: Phil Joslin (Nottinghamshire).