Offiong Edem lost to Brazil’s Bruna Takahashi 4-0 on Sunday to add to Team Nigeria’s losing run at the ongoing Olympic Games in Paris.
Earlier, Olajide Omotayo lost 1-4 to Iranian Noshad Alamiyan.
Ms Bello secured a maiden ticket to the Games after defeating Algeria’s Lynda Loughrabi 4-2 in the tournament women’s final.
At the Olympics Qualification Tournament, Aruna hopes to make his fourth Olympic Games appearance when the event kicks off on May 16 at the BK Arena in Kigali.
Aruna’s record of 15 erases Egypt’s Omar Assar’s record of world number 16, set in January 2018.