In West Alabama, catfish producers routinely face the challenge of fish that exceed market size (aka “Big Fish”) in their commercial ponds. These fish are skilled at evading seine nets during harvest and can increase in size significantly before subsequent harvests occur. This is problematic for catfish producers because processing plants prefer catfish within the 0.45 – 1.81 kg range, and farmers are paid a premium price for catfish of this size. Depending on the market and processing plant, a catfish producer can receive little-to-no monetary value for an oversized catfish. Due to their larger size and growth potential, hybrid catfish (Ictalurus punctatus ♀ × I. furcatus ♂) can become a more significant issue than channel catfish if they evade harvest. In this study, 1,005 hybrid catfish were collected from twelve recently harvested commercial ponds from seven commercial catfish farms in West Alabama from December 2021 to August 2022 with an electroshocking boat. The objectives of this study were to describe and quantify the age structure and growth of hybrid catfish that evade capture and remain in commercial ponds following harvest and grow beyond acceptable market size as defined by catfish processing plants (i.e., Big Fish). Length (mm), weight (kg), and sex were recorded, and lapilli otoliths were removed to estimate the total length and weight at age, with the successful aging of 1,001 fish. Results of this study indicate that hybrid catfish exceeded the premium size threshold at age 2.72 years and should be harvested after one production cycle. Additionally, from age 2 to 3, the average hybrid catfish can gain 2.9 kg, growing from 0.4 kg to 3.3 kg. Growth was significant based on sex; males overall were predicted to weigh more than females based on the weight-at-age model. By age 4, there were significant differences in mean weight (p = 0.009), males were predicted to weigh 9.73 kg, and females were predicted to weigh 8.10 kg. Taking length into consideration, males had a higher L∞ at 1,301 mm compared to 1,131 mm for females.