The pandemic-shortened 2019-20 season marked Porter's first full year with Chicago. The small forward was a fixture in the Bulls' starting lineup for the first nine games of the season, during which the 26-year-old averaged 11.2 points, 3.4 boards and 1.0 steal per contest. Arguably his best game of the season occurred Nov. 1 at home against the Pistons. In 31 minutes during the win, Porter recorded 22 points (8-12 FG, 3-4 3Pt, 3-5 FT), six rebounds, four assists and one steal. But a foot injury then forced Porter to miss 51 straight games from Nov. 9 through Feb. 29. He returned on Mar. 2, scoring 17 points over 17 minutes in a road win over the Mavericks. The small forward was able to play in five March games before the Mar. 11 sports stoppage. Over 14 total games for the Bulls, Porter averaged 11.9 points, 3.4 rebounds, 1.8 assists and 1.1 steals across 23.6 minutes per contest. He shot 44.3 percent from the field and 38.7 percent from three, hitting 1.7 three-pointers per contest. Porter accumulated seven games with at least 10 points, three games with at least five rebounds and eight games with multiple assists.

Porter played in 56 games in 2018-19. The versatile forward set career highs in blocks (0.6) and assists (2.1) per game. A big change occurred for Porter when he was dealt from the Wizards to the Bulls on Feb. 6, which seemed to spark his play. While a member of the Wizards in 2018-19, Porter averaged 12.6 points with a true shooting percentage of 55.1 percent. After being traded to Chicago, Porter averaged 17.5 points on a 60.9 true shooting percentage. Arguably his best performance of the season occurred as a member of the Bulls on Feb. 13 against the Grizzlies. In that contest, Porter dropped 37 points on 20 field-goal attempts along with 10 rebounds, two assists and a block across 34 minutes. That performance was one of his six double-doubles of the season. Porter racked up 10 games with at least 20 points, eight games with 10 or more rebounds, four games with at least five assists, 12 games with three-plus steals, and four efforts with at least three blocks. In addition, he ranked 15th league-wide in 3-point percentage (40.6) and 20th in steal percentage (2.3). Porter missed 10 games in December due to a right knee strain and missed the final 11 games of the year due to shoulder and knee issues.

The 2017-18 season marked Porter's fifth season in the NBA. He delivered career bests in points (14.7) and rebounds (5.1) per game across 77 appearances, all of them starts. Porter scored a season-high 29 points on two occasions, both against the Warriors -- Oct. 27 and Feb. 28. He collected 10 rebounds in both games and matched a career best by making seven 3-point shots in the first meeting with the Warriors. Porter hit another seven threes against Houston on Dec. 29, adding a season-high seven assists to go with 26 points and six rebounds. He set a season high with 13 rebounds while also scoring 12 points against Miami on Nov. 15. Perhaps Porter's best game of the season came against the Clippers on Dec. 12, when he scored 27 points, grabbed 11 rebounds, dished out five assists and recorded three steals. The Georgetown product recorded 13 double-doubles on the year. A dangerous defender, he averaged 1.5 steals again and collected three-plus steals on 16 occasions. He started all five games of the Wizards' first-round series with Toronto, averaging 10.0 points on 48.8 percent shooting along with 5.0 rebounds and 1.2 steals per game.

Porter took another step forward in 2016-17, setting new career bests with 32.6 minutes, 13.4 points, 6.4 rebounds and 1.5 steals while playing 80 games (also a career high) for the Wizards. The fourth-year man continued his trend ever-improving efficiency, as his field-goal percentage ticked up to an impressive 51.6, his free-throw percentage rose to 83.2, and his three-point percentage grew to 43.4 -- all easily career highs as well. He did much of his damage from long rage, averaging 1.9 made three-pointers per game. Porter hit 30 points for the first time in his career Nov. 9, pouring in 34 along with a career-high-tying 14 rebounds, and he nearly replicated the feat Dec. 26, scoring 32 with 14 boards. Those were his most impressive double-doubles, but not the only ones -- he tallied 12 during the regular season, plus two more in the playoffs. An instrumental player for the Wizards in their two-round playoff run, Porter averaged 12.2 points, 6.9 rebounds and 1.6 steals over 13 postseason contests. He set a new personal playoff best with 20 points in Game 7 of the second round against the Celtics, adding 10 rebounds as well.

In Porter's third NBA season, he finally was able to establish himself as a full-time member of the Wizards' starting five. He started 73 of his career-high 75 games, playing north of 30 minutes per night and turning in averages of 11.6 points, 5.2 rebounds and 1.4 steals, all easily career bests. Porter also improved his shooting for the second straight year, making 47.3 percent of his attempts while growing into a legitimate 3-point threat. He averaged 1.3 made threes per game, a massive improvement over 0.5 the year before. The Georgetown product turned in five double-doubles, including one Dec. 7 in which he pulled down a career-high 14 rebounds to go with 13 points. After scoring 20-plus points just once in his first two seasons, Porter achieved the feat nine times in 2015-16, and he scored a career-high 28 on 11-of-18 shooting Dec. 12 at Dallas. Porter frequently made his presence felt on the defensive end, recording multiple steals on 30 separate occasions, highlighted by a five-steal effort Mar. 12 (accompanied by 23 points).

Porter saw his role grow in his sophomore season, as he became a key bench piece for Washington. His minutes more than doubled from 8.6 as a rookie to 19.4 per game in his second campaign, and he lifted his scoring average to 6.0 points while doubling his rebounding average to 3.0. Much of Porter's improvement can be attributed to better shooting, as he lifted his field-goal percentage by nearly nine points to a respectable 45 percent. Porter set his season high in scoring early on, racking up 21 points along with five rebounds Nov. 1 against the Bucks. He went on to score in double figures 18 times in 74 games. Though he never exceeded eight rebounds in regular-season play, Porter turned in strong work on the glass during the postseason, averaging 8.0 boards over 10 games -- including his first career double-double in Game 1 of the Eastern Conference Semifinals against Atlanta, when he scored 10 points with 11 rebounds. Porter also scored 17 points alongside nine boards in Game 3 of that series, marking perhaps his finest playoff performance.

The Wizards selected Porter third overall out of Georgetown in the 2013 NBA Draft, but a hip injury kept him out for training camp and the beginning of the season, limiting his ability to establish himself as a steady member of the rotation in 2013-14. Porter played 8.6 minutes per game over his 37 appearances, averaging 2.1 points and 1.5 rebounds. When given more extended run, he showed an ability to impact the game on the glass, collecting eight rebounds in just under 21 minutes on Dec. 28 and six boards in less than 19 minutes Jan. 24. Porter got the most leash on Apr. 11 against Orlando, when he approached a double-double with nine points and nine rebounds, both season highs. He scored his first career playoff bucket May 13 in Game 5 of the Eastern Conference Semifinals against the Pacers.