Carlisle boosted their promotion hopes by thumping Leyton Orient, who had JJ Melligan sent off in the first half.

The Cumbrians took the lead when Danny Graham headed home Chris Lumsdon's cross from close range.

David Raven added a second, capitalising on some indecisive defending to fire home from 18 yards.

Melligan was shown a straight red card for his tackle on Evan Horwood before Marc Bridge-Wilkinson set up Grant Smith to score Carlisle's third goal.

Leyton Orient: Morris, Chambers, Thelwell (Daniels 62), Saah, Palmer, Melligan, Thornton (Purches 46), Terry, Demetriou, Gray, Boyd (Ibehre 46).
Subs Not Used: Nelson, Barcham.

Sent Off: Melligan (33).

Booked: Terry, Thelwell, Daniels.

Carlisle: Westwood, Raven, Bridge-Wilkinson (Madine 82), Livesey, Horwood, Taylor (Carlton 75), Lumsdon, Grant Smith, Murphy, Hackney, Graham (Dobie 64).
Subs Not Used: Howarth, Arnison.

Booked: Murphy.

Goals: Graham 17, Raven 32, Grant Smith 49.

Att: 6,134

Ref: Keith Hill (Hertfordshire).