The lads continued with their bright start to the new campaign after settling for a barren draw with Nzoia United at the Sudi Stadium.
Both sides came into the match on the back of high scoring victories but the opening quarter betrayed this narrative with chances hard to come by.
George Owino should have put the visitors ahead in the 14th minute but his header missed the target with Mangala grounded on his goal line.
A series of attacks from Nzoia United characterised the latter stages of the first half but they were adequately smothered by Levis Opiyo who was making his Mathare United debut.
If that moment had soured Kimanzi's mood heading into the break, what transpired moments after the restart did little to improve it.
A well worked move saw Lawrence Juma release Masita Masuta on the left who sent an early low cross into the area. However Boniface Omondi fumbled with his connection tucking it inches beyond the left upright.
Cliff Nyakeya then conjured up the best chance for us when he flashed an inviting cross into the area but poor communication between Crispin Oduor and Daniel Mwaura blew the chance.
The tide swung Nzoia United's way thereafter as Mwaura was given his marching orders for a second yellow. However the introduction of Andrew Juma as well as fantastic goalkeeping from Opiyo saw the boys hold on for a point.
"I am satisfied with the result because it is very difficult to play against a side that keeps dumping the ball in the box. We played with ten men for more than 15 minutes and I think we did well defensively.
"The red card was unfortunate but when it comes as a second yellow card you just have to accept it," remarked Kimanzi.
The league takes a one week break to pave way for the FIFA international week.