Team Nigeria are now 64th on the medals table, as the Olympic Games in Tokyo, Japan enters Day 11.
Ese Brume won the country's first medal, clinching bronze in the long jump.
The 25-year-old recorded a jump of 6.97m in the final.
Brume finished behind America's Brittney Reese and Malaika Mihambo of Germany.
Blessing Obodururu then gave Nigeria a silver medal in the women's freestyle 68kg event on Tuesday.
She lost 1-4 in the final to Tamyra Mensah-Stock of the U.S, who had defeated her three times earlier.
The Federal Government had already announced a reward of $15,000, $10,000 and $7,500 for gold, silver, and bronze medalists respectively at the Tokyo Olympics.
China lead the medals table with 32 gold, followed by United States, 24; Japan, 19; and Australia 14.