Striker, Graham Mung'ong'o, scored the only goal that separated the two sides on the 36th minute with a header off a well taken corner kick by skipper, Hassan Mganga, from the left.The victory has helped Morogoro collect six points and leapfrog Mwanza to take the second spot in the group behind leaders, Zanzibar's Urban West, which has 10 points.
Morogoro, who had an edge over their opponents when it came to creating chances, could have garnered a much bigger win in the game had the team's striking force exploited a host of chances it had in either half.
Morogoro pounced as early as on the first minute when left winger, Shiza Kichuya, raced down the left and crossed in but team mate, Moses Kachonga, failed to tap in despite arriving in the box on time.
The team pressured again five minutes later, after Mung'ong'o was released on the left and cut in but his attempted right footed cross went straight into the waiting hands of Iringa keeper, Seif Ngingo.
Iringa also had chance to threaten a minute before when striker, Deus Lema, was set up a few metres from the box but his right footed attempt went inches wide.Morogoro went close on the 10th minute as Kachonga managed to chest down a long pass from team mate at the edge of the box but the former's fierce shot went narrowly wide.
Iringa replied three minutes later when left winger, Ramadhan Kihwelo, controlled a pass 20 metres out but his powerful drive went way over the crossbar.Morogoro resumed control of the game thereafter but they missed three good chances to widen the margin much to the relief of Iringa.
The best of the three chances came on the 21st minute in which Kichuya was released inside the box but his low shot was saved by Iringa keeper, Ngingo. There was another miss by Morogoro just before the breather when Mganga was released on the left, whipped in a good cross but midfielder, Nelson Peter, fluffed a shot inside the area.
Morogoro led by the lone goal at the breather and then started the second half on a sound note only to waste two close chances, which could have all but put the game beyond Iringa youngsters.
Both chances saw Mung'ong'o hit the underside of the crossbar on the 54th and 71st minutes, much to his and the team fans' disappointment. The first saw him collect the ball on the right flank and race into the box before unleashing a powerful drive that hit the underside of the crossbar and Iringa defenders quickly cleared the danger.
Mung'ong'o, who had then positioned himself well inside Iringa box on the 71st minute, controlled a cross from the left but his resulting fierce shot again kissed the underside of the crossbar before keeper Ngingo collected the ball.
Iringa, who were a rejuvenated side in the second half, took the game to their opponent from midway but their relentless pressure could not pay dividends as Morogoro defenders, led by towering centre back, Hamad Tajiri, stood firm.
Iringa, though, had the best chance to salvage a draw on the 74th minute, when Morogoro keeper, Cosmas Andrew, came out of his comfort zone in a bid to collect a high ball but his poor calculations saw him miss the ball as it bounced over him only to see Iringa striker, Musa Maginga, fail to tap into the yawning net.