Hearts missed out on the chance to go second in the SPL after being held to a 0-0 draw at Aberdeen, while Hamilton and Dundee United drew 1-1.
The hosts created the better chances but found Hearts goalkeeper Marian Kello in fine form, the Czech making two excellent saves to deny Sone Aluko and Rory McArdle in the first half.
The Tynecastle outfit enjoyed more of the play in the second half but rarely troubled Jamie Langfield in the Aberdeen goal.
Hamilton are still looking for their first home SPL win of the season after throwing away a lead to draw with Dundee United at New Douglas Park.
The visitors missed a series of first-half chances and paid for their profligacy in the 33rd minute when Mickael Antoine-Curier sent Dusan Pernis the wrong way from the spot after Prince Buaben had fouled Gavin Skelton.
United pressed for most of the second half and were rewarded in the 83rd minute when substitute Andis Shala headed in a Craig Conway cross.
The Accies are seven points adrift at the foot of the table, but have a game in hand over the teams immediately above them.
William Gros marked his first start for Kilmarnock with a goal as the Ayrshire side consolidated fourth place with a 2-0 victory over St Mirren at Rugby Park.
Gros finished well in the 13th minute after a through-ball from Alexei Eremenko, who doubled the lead with a speculative effort before the half-hour mark.
Substitute Kenny McLean lifted St Mirren after the break but his long-range strike against the post was the closest they came.
Callum Booth and Lewis Stevenson were on target as Hibernian claimed a fourth successive SPL win with a 2-0 victory over Inverness at Easter Road.
Victor Palsson had a header blocked on the line in the first half before Booth lofted a volley over Ryan Esson and into the visitors' net after 58 minutes and substitute Stevenson struck a deflected second after 89 minutes.
Adam Rooney twice came close for Inverness, but each time was denied by Hibs goalkeeper Graham Stack.
