[3] Henderson was also named the Alabama Independent School Association Player of the Year in basketball after averaging 17 points and 11 rebounds per game.

[6] The Baltimore Orioles selected Henderson in the second round of the 2019 Major League Baseball draft with the 42nd overall pick.

[13] He began the season with the Low-A Delmarva Shorebirds and was promoted to the High-A Aberdeen IronBirds and the Double-A Bowie Baysox during the year.

The honor came after Henderson hit .297 with 19 home runs, 76 RBI, and 22 stolen bases in 112 games split between Bowie and Norfolk.

[27] He had a pair of four-hit games in his rookie season, beginning with a 14–1 away win over the New York Yankees on July 6 when he also had two homers and five RBI within the first four innings.

[28] The other was a 12–1 victory over the Athletics at the Coliseum on August 20 when he was a single away from becoming the first rookie in Orioles history to hit for the cycle, but got his second double of the game instead.

[29] He went 6-for-12 as the Orioles' best hitter during the ballclub's American League Division Series (ALDS) loss to the Texas Rangers.

[31] Henderson was named the 2023 Major League Baseball Players Association Outstanding Rookie of the Year.