Stima needed a win against the fellow promotion candidates, to ensure they extend their lead at the top of the table by six points, and that is exactly what they did against the bankers.
Morris Ojwang and Fredrick Nyarombo scored the determining goals for the home team, who responded later on through former Thika United star Shami Kibwana. However, the goal came a little too late for the visitors.
The race is expected to further hit up on Wednesday with eight matches on the card in different venue. At Moi Stadium, Kisumu All Stars will be aiming at causing an upset to visiting Ushuru, who are aiming at going third on the table if they register a win by a bigger margin.
Ushuru have been inconsistent of late, but the KCB loss might be the motivation they need to get a win.
Second placed Nairobi Stima will face the unpredictable St. Joseph Youth at Karuturi Grounds. The Nairobi power men are on 58 points, and will hit a sixty-point mark with victory against the saints.
Green Commandos have a daunting task against Bidco away at Thika Stadium, with relegation threatened GFE 105 and Administration Police facing Coast Stima and Kenya Police respectively.
Fixtures on Wednesday: Nakuru Allstars vs Nairobi City Stars (Afraha Stadium 3pm), Bidco United vs Green Commandos (Thika Stadium 3pm), Nairobi Stima vs St. Joseph Youth, (Karuturi grounds 3pm), GFE 105 vs Coast Stima (Sudi Stadium 3pm), Kisumu Allstars vs Ushuru FC (Moi Stadium 3pm), Modern Coast Stima vs Isibania (Mbaraki Stadioum 3pm), Administration Police vs Kenya Police (Camp Toyoyo) and Talanta vs Kibera Blackstars (Camp Toyoyo).