The two teams have yet to record a win this season's edition and are, consequently, placed fourth and fifth respectively in the table.
The group favourites, Caravans and Aga Khan SC, have been placed first and second respectively, followed by Annadil Burhani in the third spot.
Caravans and Aga Khan SC have yet to taste defeat, Annadil Burhani have conceded one loss.
Union SC got off to wobbly start, conceding 123-run loss to the tournament's defending champions, Caravans.
Union are set to bank on their veteran players including Athuman Kassim, Hasnain Moti, Danish Unia and Hasnain Damji to steer the squad to their first victory tomorrow.
Union are at the bottom of the Group A log with a net run rate of -6.15.
With a handful of experienced players in their fold, they will certainly not be ready to be contented with the place they are lately occupying in the group.
Gymkhana have suffered two losses in two outings, posting a net run rate of -3.63.
They lost to Aga Khan SC by 104 runs in the first match, they, thereafter, lost to Caravans by 41 runs.
Ashish Nagewadia, who skippers Gymkhana, has a challenging task of motivating the rest of the team to play their hearts out and come out victorious against Union SC.
Union SC are, prior to facing Gymkhana, set to confront Aga Khan SC at the Leaders Club ground early the same day.
Dar es Salaam cricket fanatics are set to be treated to more action, in which the DGC venue and Leaders Club venue will host several more duels.
Aces will lock horns with Estim in Group B match at the DGC oval, GP Club will entertain Saint Gobain at the venue.
Caravans Cricket Club has hosted the tournament, which is held annually, under the auspices of Dar es Salaam Regional Cricket Committee (DRCC), gearing towards raising the standard of the game at the domestic level.
Petrofuel, Alliance Insurance, Grand Restaurant, Colourflex, RAS Logistics companies, and SBC, through Pepsi brand, are this year’s competition’s sponsors.
This year’s tournament has brought together 10 that have been placed in two groups.
Group A has been made up of Union, Caravans, Gymkhana, Aga Khan SC and Team 10. Group B outfits include Aces, Shree Kutchi Leva, GP, Estim and Saint Gobain.