Mlawa got more than 70 percent of all of the games he played on his way to winning the title.
He turns out to be the first Tanzanian to attain the title and is consequently rated on 1828th in the FIDE ranking.
The player has been phenomenal at the Batumi Olympiad as he has won many games for the Tanzania team.
He has joined other FIDE ranked Tanzanian players Nurdin Hassuji and Yusufu Mdoe who are both Candidate Masters (CM).
The next step for Mlawa is the International Master (IM) title and commenting on the development, Kara Louis, Dar es Salaam's Don Bosco chess team coach, said the success will put the country on the international map in the sport.
He described Mlawa as a hardworking player who is destined for more success in the sport.
"He has proved that the country has many good chess players, his achievements will put the country on the world map, personally he will also get many sponsorship deals,” he said.
Team Tanzania returned home on Saturday. The squad was made up of nine players, Mdoe, Hassuji, Mlawa, Albert Njau, Taher Hassuji while captain was Mussa Mangula.
The women team had Bertha Samson, Asha Kondo, Zahabiyah Ebrahim, Prasuna Doppalapudi, Navin Choudary and captain was Mustafa Ebrahim.
Others who travelled with the team include Rashid Shariff who attended arbiter seminar and Vinay Choudary who is the only FIDE recognized arbiter domestically.
Tanzania Chess Association (TACA) president Geoffrey Mwanyika also accompanied the team as he attended the FIDE elective meeting.
The meeting elected Russian Arkady Dvorkovich as its new president. Dvorkovich edged Georgios Makropoulos of Greece in the election.
Prior to the team departure, Mwanyika said FIDE gave TACA a total of 11,200 Euros as funds for the team. He however said the funds were not enough and thanked Spicenet company for helping them financially.
"This time we had difficulties in accessing funds, the 11,200 Euro ($13, 000) that was sanctioned by FIDE as travel grants to the country was not enough to cater for the trip," he disclosed.
"Choudary and his company Spicenet are backing us financially when there is shortage, I sincerely thank him for being supportive all the time."