Firpo was inducted into the International Boxing Hall of Fame in the Old Timer category as part of the class of 2024.

[5] He returned to his home town Buenos Aires to fight Jim Tracey in front of 20,000 spectators.

[6] Firpo began 1923 at Madison Square Garden knocking out former title challenger Bill Brennan in the 12th round with a right.

[9] After a win against Charley Weinert, Luis Firpo was scheduled for a heavyweight title shot against Jack Dempsey.

[10] The match was at the Polo Grounds, normal capacity 55,000, but an additional 20,000 seats were constructed bringing the total to 75,000 for the fight,[11] later expanded to 83,000.

The police estimated that 150,000 people showed up, including a mass extending a quarter mile in every direction around the arena.

[12] Firpo was floored seven times in the first round of the bout, before he trapped Dempsey against the ropes and launched a combination that sent the champion out of the ring.

[16] Firpo and Jack Dempsey agreed to jointly manage Cestac, who went on to become the South American heavyweight champion.

[17][18] On his passing in 1960, Luis Firpo was buried in La Recoleta Cemetery in Buenos Aires.