[5] He was named Second Team All-American by Max Preps and was ranked 34 among the top 100 players in the nation in high school.

[8][9] Yelich played for the Gulf Coast League Marlins for six games, getting nine hits and seven strikeouts with a batting average of .375 before being advanced to Class-A.

[19] He struggled to start the season, and was placed on the disabled list in April with lower back strain before making his return on May 8.

[23] Yelich had improved from his earlier offensive struggles and was hitting .275/.343/.376 with six home runs, 29 RBIs and 14 stolen bases up to that point in the season.

[24][25] Despite aggravating the injury shortly after his return, Yelich remained an active player for the quality of his bat.

[26][27] Near the end of the season, Yelich shared the field with Marcell Ozuna, the outfielder who had replaced him during his second stint on the disabled list.

[31][32] On April 23, in a game against the San Francisco Giants, Yelich hit three doubles, which tied a franchise record.

[37] On January 25, 2018, the Marlins traded Yelich to the Milwaukee Brewers for Lewis Brinson, Isan Díaz, Monte Harrison, and Jordan Yamamoto.

[38] Yelich was named to the 2018 MLB All-Star Game after batting .285 with 11 home runs, 36 RBIs, and 11 stolen bases.

[42] Yelich finished the 2018 season with a .326/.402/.598 slash line, 36 homers, and 110 RBIs, winning the first NL batting title in Brewers history, while narrowly falling short of a triple crown.

[46] On November 16, Yelich was named Most Valuable Player of the National League, falling one vote shy of a unanimous selection.

[47] On March 31, 2019, Yelich became the sixth player in MLB history to hit a home run in each of his team's first four games.

At the start of the 2021 season, Yelich had a lingering back problem that caused him to spend over half of April and within the first few weeks of May on the injured list.

[69] He has two brothers: Collin, who played minor league baseball in the Braves organization, and Cameron, who is a member of the United States Marine Corps.

His scene was with the 2018 Honolulu Little League World Champions in which he homers off a pitch from series protagonist Orville "Rick" Wright (played by Zachary Knighton).

[76] Yelich once invited Cleveland Browns quarterback and 2017 Heisman Trophy winner Baker Mayfield to Brewers batting practice.

[80] In October 2021, he purchased a $6.5 million home in Paradise Valley, Arizona, from NHL player Oliver Ekman-Larsson.