Technical Abstract: The Texas A&M Goat Simulation Model, with modifications such as of maintenance energy requirements, is being used in a collaborative project involving institutions primarily in the southern US. However, the model was developed before Boer goats and their crossbreds became prevalent in the US. Therefore, this study was conducted to evaluate model predictions of body weight (BW) and cumulative feed intake (air-dry; FI) of growing crossbred Boer goats. Data for model evaluation were derived from Prairie View A&M University. There were four genotypes of wethers: Boer x Nubian (n=10, age=131.8 to 245.8d, and BW=32.14 to 48.27kg), Spanish x Boer (n=8, age=111.4 to 231.4d, and BW=13.73 to 38.27kg), Boer x Alpine (n=10, age=132.4 to 245.4kg, and BW=21.86 to 41.77kg), and Boer x Nubian x Myotonic (n=10, age=115.0 to 235.1d, and BW=24.00 to 43.05kg). Diet composition was 16% CP and 75% TDN (air-dry basis). Body weight and FI were determined at four times within the growing periods. Model evaluation with pooled data was conducted by regressing observed means of BW (BWO) and FI (FIO) against predicted values (BWP and FIP, respectively). The equation for BW was BWO=3.73 (SE=3.489) + (0.935 (SE=0.0970) x BWP) (R squared=0.86), and that for FI was FIO = -6.84 (SE =8.062) + (1.012 (SE=0.0665) x FIP) (R squared = 0.94). In conclusion, the model explained considerable variation in BW and FI of growing crossbred Boer goats and provided unbiased predictions. Increased prediction accuracy should result from improved inputs, such as mature BW. Key words: Goats, Simulation Model