Cup holders, Heartland, have become the latest club to go top of the Nigeria Professional Football League (NPFL) after defeating ABS 1-0 in Owerri on Sunday.
Amarachi Ukaegbu's goal in the 34th minute was enough for Heartland to secure a seventh win of the season.
Heartland and Kano Pillars are both on 22 points but the former have a superior goals difference.
Both clubs also have a game in hand apiece and coincidentally, the outstanding tie is their May 29 replay scheduled for Abuja after their clash in Kano was abandoned owing security issue.
Kano Pillars, who were table-toppers before the Week 13 matches, showed little fight at Warri Wolves by falling 0-2 in the first 13 minutes.
Oghenekaro Etebo scored his sixth goal of the season on six minutes and Joseph Osadiaye made it two in the 13th minute.
Kano Pillars could only muster a late goal through Kabiru Umar as they surrender top spot to Heartland.
In Aba, Bayelsa United who also had the chance of going top fell behind in the 12th minute in their game against Enyimba through Ayo Saka's strike.
Last season's leading scorer, Sibi Gwar got the second for Enyimba to kill off the game as a contest and ensure that the Aba side move into the top six of the standings on 19 points.
In spite of their 1-0 win over Sunshine Stars in Port Harcourt, Sharks still remain in the bottom four.
Chibuzor Osigwe converted Anthony Okemmiri's cross with a half volley in the 62th minute to give Sharks their third win.
Wikki Tourists stunned Nembe City when Ibrahim Babale scored on the half hour mark.
But Arinze Obioma cancelled the lead just before the break and Joshua Uge got the winner in the business end of the tie.
Ali Adamu continued his scoring form for Kaduna United as his solitary goal on 59 minutes proved decisive against Lobi Stars.
Kwara United and Dolphins shared the points in Ilorin. Yahaya Adamu scored in the 39th minute for the hosts before Fred Okwara finished off in a typical goal-poacher's attitude to ensure Dolphins without their key players got a 1-1 draw.
At the Pantami Stadium, Sani Gidado's 14th minute goal turned out to be the winner against El-Kanemi Warriors.
In Lafia, Nasarawa United and Akwa United played out a goalless draw.