Jim Brewer used to play in the position of forward-center. He had a height of 6 feet 9 inches and weight of 210 lbs. While playing in the NBA (National Basketball Association), he was given jersey no. 52, 42, 40 and 8. From 1973 to 1979, he was a member of Cleveland Cavaliers. He played for Portland Trail Blazers in the 1979-80 season. He was drafted to Los Angeles Lakers for the 1980-81 and 1981-82 seasons.
Brewer attended Proviso East High School in Maywood, Illinois. After passing out, he took admission in the University of Minnesota. During the 1973 NBA draft, he was selected by Cleveland Cavaliers in the 1st round. He was the 2nd pick and overall 2nd pick. The maximum points gathered by Brewer in a single season are 940, which he gathered in the 1975-76 season. In this season, he also collected 891 rebounds, 209 assists and 214 personal fouls. His field goal percentage was 0.458 and free throw percentage was 0.654.
In the NBA, Brewer participated in 703 games and got 15936 playing minutes. He completed 3983 field goal attempts out of which there were 1785 field goals and the corresponding field goal percentage was 0.448. He made 13 3-point field goal attempts out of which there was 1 3-point field goal resulting in a 3-point field goal percentage of 0.077. The number of free throw attempts was 925 and the number of free throws was 528 resulting in a free throw percentage of 0.571. He accumulated 4099 points, 1536 personal fouls, 1038 assists and 4458 rebounds.