Dar es Salaam's Annadil Burhani Club has hosted the competition, bringing together 14 clubs from across the city, in cooperation with TCA in an effort to step up promotion of the game at the domestic level.
Union SC boasts of the best statistics in Group A of the competition, raking up victory in five outings and conceding one defeat in six matches to collect 10 points.
They have posted a net run rate of 2.7533, recording 590 runs and giving away 413 runs.
Despite being level with group leaders on points, number of matches won and lost, Shree Kutchi Leva Patel SC (SKLPSC) is placed second, given the oufit has an inferior net run rate.
The SKLPSC has notched a net run rate of 2.1431, given the squad has amassed 481 runs and leaking 369 runs.
Union SC's cricketers had, in their recent fixture, failed to hold their own against their closest challengers SKLPSC, conceding a four-wicket loss to the latter.
Union SC went in to bat first and amassed 51 runs for the loss of nine wickets in the allotted 10 overs.
The SKLPSC, in response, smoothly chased Union SC's total, notching 53 runs for the loss of six wickets in 8.2 overs.
Caravans Club, ALAF Aces Club and Malabar Cricket Club (MCC) are placed third, fourth and fifth respectively, with the former posting victory in four outings out of six matches played.
ALAF Aces Club has notched victory in two games out five outings, whereas MCC has emerged victorious in two games out of six outings.
One of the tournament hosts Annadil Seifee are placed sixth in Group A with two wins in five outings, followed by bottom-placed TCA Development team, rooted to the position without victory in six outings.
In Group B, General Petroleum (GP) Club leads the rest of the pack, having notched victory in five outings and losing one match.
The group leaders recorded a net run rate of 1.2708, amassing 473 runs and leaking 415 runs.
Second-placed K&P Constructions side is hot on the group leaders' heels with victory in four outings and one loss.