How many men had signed up to be a gladiator at the end of the republic?

By the end of the Roman Republic, estimates suggest that there were around 10,000 to 20,000 gladiators active at any given time. This number fluctuated due to the demand for entertainment in the arena, as well as the various conflicts and slave revolts that occurred. Gladiators were often slaves or prisoners of war, and their ranks could swell with new recruits during times of war or unrest. However, exact figures are difficult to ascertain due to the lack of comprehensive records from that period.