Leaders ZESCO United were held to a 0-0 draw by hosts FC MUZA in the MTN Super League on Wednesday, and have had their advantage at the top of the table cut to just a single point.
They now have 26 points from 13 games, but two clubs are now just behind them.
Power Dynamos have risen to second after an excellent 3-1 home win over NAPSA Stars.
Dominic Chanda, Brian Masanyinga and Austine Muwowo all netted for Dynamos, while Daniel Adoko scored what proved a consolation goal for Stars.
Kabwe Warriors are in third place after a 1-0 win over Mutondo Stars, handed to them by a goal 11 minutes from time by Francis Banda.
Champions Red Arrows had to come from behind to draw 1-1 with Mufulira Wanderers.
Clive Biyeta put the latter ahead but Miche Malonga equalised for Arrows with six minutes remaining.
Struggling Zanaco claimed a 1-0 home win over Nkana FC, with Araina Lambert scoring the only goal after 55 minutes.
Nkwazi FC secured an excellent 2-1 win over Green Buffaloes, with all the goals coming in the first half.
Wezzy Kumwenda and Innocent Kashita had Nkwazi 2-0 up after 19 minutes, before Lucky Bwalya reduced the deficit seven minutes before the break. But they could not force an equaliser.
Bottom side Indeni FC played to a goalless draw with Nchanga Rangers and are still seeking their first win of the campaign.