Tusker failed to take advantage of KCB’s slip up in the early fixture, losing by a solitary goal to City Stars at their Ruaraka Complex home ground.
The bankers had earlier lost 2-0 to Posta Rangers in the early kick off, handing Tusker an opportunity to open a four-point gap.
However, the brewers could not take advantage as they were complacent and played poorly with the title at their mercy.