Ross County stretched their lead at the top of Scottish Football League Division One to nine points with victory over Livingston.
Kenny Deuchar fired over for Livi in the first half but the hosts were dealt a blow 11 minutes into the second period when Rory Boulding was dismissed for foul and abusive language.
And County moved into the lead in the 65th minute when Michael Gardyne converted Marc Fitzpatrick's cross.
Colin McMenamin scored on 72 and 74 minutes to make sure of the win, his first from close range and his second a powerful strike.
Livingston: McNeil, Kyle Jacobs, Craig Barr, Watson, Talbot (Brown 46), Keaghan Jacobs, Fotheringham, Robert Barr, Deuchar (Fox 65), McNulty (Russell 75), Boulding. Subs Not Used: Jamieson, Cummings.
Sent Off: Boulding (56). Booked: Fotheringham.
Ross County: Fraser, Miller, Boyd, Munro, Fitzpatrick, Lawson, Kettlewell (Duncan 81), Brittain (Quinn 81), Vigurs, Gardyne, McMenamin (Craig 87). Subs Not Used: Malin, Byrne.
Goals: Gardyne 65, McMenamin 72, 74.
Ref: Mike Tumilty