Pinson's sophomore campaign saw him appear in 33 games off the bench for Brooklyn, averaging 3.6 points, 1.6 rebounds, 1.7 assists and 0.7 steals across 11.1 minutes per game. He also appeared in nine games for the G League's Long Island Nets, averaging 15.3 points with 2.2 threes, 6.8 boards, 5.0 assists and 1.1 steals. Back at the NBA level, Pinson cleared double-digit points on four occasions off the bench. On Dec. 6, he pulled down a season-high seven rebounds against the Hornets. Facing Charlotte again Dec. 11, he delivered a season-high 12 points with two threes, three boards, two assists and a block. Pinson took full advantage of just under 10 minutes of playing time Dec. 28 against Houston, scoring 11 points with an assist and a steal. He also set a career high with eight assists Nov. 27 against Boston.2018
Pinson signed with the Nets in the summer of 2018 after going undrafted out of North Carolina. The former Tar Heel split his rookie season between Brooklyn and the G League Long Island Nets. "Spark Plug" appeared in 18 games for Brooklyn and 34 games for Long Island. His NBA debut occurred Oct. 20 against the Pacers, when he supplied two points, two assists and one rebound in seven minutes of run. On Jan. 10, Pinson had arguably his best G League game, exploding for 43 points, seven three-pointers, five assists and four rebounds in a win at Maine. On Jan. 25, Pinson delivered his best NBA game during a win over the Knicks, posting a career-high 19 points with eight rebounds, two assists and two steals. In the G League, Pinson posted averages of 20.7 points, 3.1 made three-pointers, 6.1 assists and 5.9 rebounds. He also was named to the Midseason All-NBA G League East Team and earned All-NBA G League Second Team and G League All-Rookie Team honors. With Brooklyn, Pinson delivered averages of 4.5 points, 2.0 rebounds and 1.2 assists over 12 minutes per game.