Scintillating batting and bowling showing by the eventual winners made the difference, condemning Gymkhana to the first defeat in the tournament.
Estim Eleven were put in to bat after having lost the toss and made the most of the opportunity, cruising to 156 runs for three wickets in the allotted 20 overs.
The side's batsmen made no secret of their intention to set up a challenging target for their opponents, as Nitin Jeshani nailed 59 runs from 40 balls to anchor the innings.
Ashvin Pindoriya and Pravin Vadodariya were equally impressive, as they scored 49 runs from 53 balls and 21 runs from as many balls respectively.
Bhavik Bhodia closed out the innings with 14 runs not out from five balls, blasting two sixes along the way.
Bipin Vekariya, as well, did not face dismissal in the innings, despite having not registered a run.
In response, chasing 157 runs to win turned out to be a tall order for Gymkhana, as they scored 132 runs for eight wickets in 20 overs.
Pankaj's 34-ball 41, which included four boundaries and two sixes, and Vishal Patel's 24-ball 26 were so far significant contributions in the innings.
Kiran was the other batsman with double digit figure, chipping in with 12 runs from nine balls and nailing a boundary and a six in the process.
Estim Eleven bowlers tormented Gymkhana batsmen almost at will, with Pindoriya leading the bowling onslaught with a good bowling figure of 4-11 in four overs.
Sixteen clubs are participating in the competition, which has organized by Caravans Club under the supervision of the Dar es Salaam Regional Cricket Committee.
The outfits are Aces, Dik Diks, Telugu Royals, Telugu Stars, Annadil Burhani, Union, Boom Boom and Aga Khan.
General Petroleum, Gymkhana, Estim Eleven, Sandy’s Super Strikers, Veecom, Lions, Saint Gobain Strikers and hosts, Caravans, are as well in the list.
Participating teams lock horns in 20-over matches, in which the winning team secures two points and one point is awarded to either side, should a match end in a tie. Teams also take a point apiece should a game be declared no result.
In case of interrupted games, as revealed by the tournament regulations, the normal run rate method shall be used, in which runs are divided by overs to determine targets.