In his first full season with the Magic, Fultz appeared in a career-high 72 games, averaging career-highs in scoring (12.1 PPG), assists (5.1 APG), steals (1.3 SPG) and minutes (27.7 MPG) per game. Fultz also shot career-bests from the field (46.5% FG) and from the free throw line (73.0% FT). On Dec. 20, Fultz scored a then-career-best 20 points to go with six assists and two steals during a win at Washington. On Jan. 6, the point guard generated a new career-high 25 points, plus five boards, four assists and two steals in a home win over the Nets. Fultz delivered his second career triple-double on Jan. 15 during a one-point road win over the Lakers. Fultz finished with 21 points, 11 rebounds and 10 assists. In a Feb. 3 win over Charlotte, Fultz handed out a career-high 14 assists to go with 12 points and two steals. Through the final 19 games before the All-Star break, Fultz averaged 13.5 points, 5.9 assists, 4.5 rebounds, 1.5 steals per contest while shooting 48.4 percent from the field. In the NBA bubble, Fultz appeared in all 13 of the Magic's games, including the playoffs. In Orlando's Game 1 victory over Milwaukee, Fultz had 15 points, six assists, two rebounds and one block. For the series, Fultz posted averages of 12.0 points, 5.2 assists, 2.2 rebounds and 1.0 steal in 29.2 minutes.

Fultz began his second NBA season as a starter in the 76ers' backcourt before an early-season acquisition of four-time All-Star Jimmy Butler moved Fultz to a supporting role. Fultz dealt with a shoulder injury for several months and was eventually shut down for the season after appearing in 19 games. He averaged 8.2 points, 3.7 rebounds and 3.1 assists in 22.5 minutes per game. Fultz scored a career-high 16 points against Atlanta on October 29 and also matched his season-high with seven assists in the game. He previously handed out seven assists against Orlando on Oct. 20. The-20 year-old recorded a career-best three steals on Nov. 7 against Indiana. He improved his field goal percentage to 41.9 percent and free-throw percentage to 56.8 percent. Fultz played a career-high 27 minutes against Milwaukee on Oct. 24. He scored in double-digits on back-to-back games on Oct. 27 and 29 against the Hornets and the Hawks, respectively. On Feb. 7, the 76ers traded Fultz to the Magic in exchange for Jonathon Simmons and two future draft picks. He did not appear in a game for the Magic in 2018-19.

Entering the league as the No. 1 overall selection in the 2017 NBA Draft, Fultz struggled with injuries in his first NBA season. He was limited to just 14 games, but Fultz put plenty of good moments on tape when he did suit up. Fultz's offensive production - relative to the minutes he received - was excellent. He averaged 7.1 points, 3.1 rebounds, and 3.8 assists in just 18.1 minutes. Fultz added 1.2 steals/blocks per game for good measure. Not only is Fultz the rare 19-year-old who can beat you in a variety of ways, but the Sixers played exceptionally well in the games Fultz did play. In the 14 games in which Fultz saw action, Philadelphia went 11-3. Fultz scored in double figures on 10 separate occasions and posted five or more rebounds and/or five or more assists four different times. Fultz ended the season in style. In Philadelphia's final regular season game against Milwaukee on April 11, Fultz posted a massive 13-point, 10-rebound, 10-assist triple-double. He also appeared in three playoff games for the Sixers, averaging just 1.7 points, 1.7 assists and 1.0 rebounds in 7.6 minutes per contest.