Eight clubs, from Inverness CT in second spot to Dundee United in ninth, are separated by only four points ahead of a full card of midweek games in the Clydesdale Bank Premier League.
Aberdeen welcome in-form Ross County to Pittodrie in Tuesday's fixture, live on ESPN at 7.30pm, while new Dundee boss John Brown takes charge for the first time when bottom club Dundee meet St Johnstone in a Tayside derby in one of five matches on Wednesday night.
Leaders Celtic make the short trip to Fir Park to take on Motherwell, live on Sky Sports at 7.45pm, while second-placed Inverness CT have home advantage against Dundee United.
St Mirren will go above Hearts if they come out on top in Paisley and one point is also all that separates Hibernian and Kilmarnock ahead of their encounter at Easter Road.
Aberdeen (8) v Ross County (5) – Tuesday, 7.30pm
Referee: Crawford Allan
TV: Live on ESPN
Last SPL meeting: Ross County 2-1 Aberdeen, 03/11/12
Overall SPL record: Ross County 1 win, Aberdeen 0 wins, 1 draw
Last five SPL form: Aberdeen DLDWD Ross County WDWWW
William Hill match odds: Home 11/10, Away 13/5, Draw 11/5
Dundee (12) v St Johnstone (4) – Wednesday, 7.45pm
Referee: Willie Collum
Last SPL meeting: St Johnstone 1-0 Dundee, 02/01/13
Overall SPL record: St Johnstone 7 wins, Dundee 5 wins, 5 draws
Last five SPL form: Dundee DLLLL St Johnstone WWLDW
William Hill match odds: Home 3/1, Away 10/11, Draw 12/5
Hibernian (6) v Kilmarnock (7) – Wednesday, 7.45pm
Referee: John McKendrick
Last SPL meeting: Kilmarnock 1-1 Hibernian 23/12/12
Overall SPL record: Hibernian 18 wins, Kilmarnock 17 wins, 13 draws
Last five SPL form: Hibernian DLLWD Kilmarnock LWDWD
William Hill match odds: Home 7/5, Away 21/10, Draw 21/10
Inverness CT (2) v Dundee United (9) – Wednesday, 7.45pm
Referee: Brian Colvin
Last SPL meeting: Dundee United 4-4 Inverness CT, 15/12/12
Overall SPL record: Dundee United 11 wins, Inverness CT 6 wins, 9 draws
Last five SPL form: Inverness CT LLDLW Dundee United DWLWD
William Hill match odds: Home 7/5, Away 19/10, Draw 23/10
Motherwell (3) v Celtic (1) – Wednesday, 7.45pm
Referee: Iain Brines
TV: Live on Sky Sports
Last SPL meeting: Celtic 1-0 Motherwell, 02/01/13
Overall SPL record: Celtic 38 wins, Motherwell 6 wins, 8 draws
Last five SPL form: Motherwell WLWLL Celtic WWWDW
William Hill match odds: Home 5/1, Away 4/7, Draw 14/5
St Mirren (11) v Hearts (10) – Wednesday, 7.45pm
Referee: Kevin Clancy
TV: BBC ALBA delayed transmission
Last SPL meeting: Hearts 1-0 St Mirren, 17/11/12
Overall SPL record: Hearts 14 wins, St Mirren 4 wins, 6 draws
Last five SPL form: St Mirren LWDLL Hearts WDLLL
William Hill match odds: Home 9/5, Away 13/8, Draw 21/10
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William Hill odds subject to change - latest prices here
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