In the list provided by Boxrec, a netowrk which holds records for professional boxers all over the world, the boxers are listed as top boxers in the their respective weight divisions.
Mbelwa who holds a record of fighting his first professional boxing match in Afghanistan has been listed as the number one Lightweight boxer in the country.
Mgendera, the former Global Boxing Council (GBC) Super Featherweight champion, has been named as the top boxer in the division.
In the list, the number one boxer in the country at every weight (pound for pound), Hassan Mwakinyo, is also the standout performer in Super Welterweight.
The other best boxers in the country are Omari Shirika, who has been named the leading Heavyweight pugilist in the country.
Shirika has nudged Alphonce Joseph, popularly known as 'Mchumiatumbo', from the Heavyweight division's top spot, after the latter had enjoyed the spot for many years.
'Mchumiatumbo', who is currently in fine form according to Boxrec, appears to be 'not active' although he was recently beaten by Knock Out (KO) by Jongo Jongo, a fight that has not been included in the records.
Boxrec shows the last time 'Mchumiatumbo' suffered a Technical Knock Out (TKO) loss to Russian, Arslan Iallyev, in Russia on October 5, 2019.
Jongo has been named the leading Cruiserweight pugilist, whilst Twaha Kassim 'Kiduku' is the top boxer in Super Middleweight.
Other best boxers in the country in their respective weight divisions are Meshack Mwankemwa (Middleweight), Iddi Pialari (Welterweight), Adam Kipenga (Super Lightweight) and Salim Mtango has been a beacon in Lightweight.
In Featherweight division, Muksin Swalehe 'Mastiki the Don' is the leading pugilist while Tony Rashid is the top boxer in Super Bantamweight.
Charles Tondo (Bantamweight), Innocent Evarist (Super Flyweight), Mustafa K Mkupasi (Flyweight), Muhsin Kizota (Light Flyweight) and Selemani Bangaiza, who is the top Minimumweight pugilist, complete the list of 18 top boxers in the country.
Japhet Kaseba, Mfaume Ahmed and Mchumiatumbo are among those who have been at the helm of professional boxing in the country, although they have now collapsed.
Tanzania Professional Boxing Regulatory Commission (TPBRC)'s Acting president, Agapeter Basil, noted the standards were based on the type of fight each of the boxers fought.