The Toronto Blue Jays selected Berti in the 18th round, with the 559th overall selection, of the 2011 Major League Baseball draft.
With the Vancouver Canadians of the Short Season-A Northwest League, he had 23 stolen bases, and hit .291 with 21 RBI.
In 2012, he played for the Lansing Lugnuts of the Class A Midwest League and the Dunedin Blue Jays of the Advanced-A Florida State League (FSL).
In 110 combined games, Berti hit .241 with 2 home runs, 40 RBI, and 34 stolen bases.
In 2013, Berti played for Dunedin and stole 56 bases, the most in the FSL.
That offseason, Berti played for the Canberra Cavalry of the Australian Baseball League (ABL) in the 2013–14 ABL season.
He stole 31 bases in 46 games, setting an ABL record, and hit .309 with 18 RBI.
He stole another four bases in the 2013 Asia Series.

In 2014, Berti played for the New Hampshire Fisher Cats of the Double-A Eastern League.
He stole 38 bases, was named an Eastern League All Star, and was assigned to the Arizona Fall League after the regular season.
He also set career-highs in games played (136), home runs (7), and RBI (50).
In the offseason, Berti played 20 games with the Mesa Solar Sox of the Arizona Fall League, and batted .292 with 3 home runs, 8 RBI, and 6 stolen bases.
He would split time in 2015 with New Hampshire and the Triple-A Buffalo Bisons.
In 103 total games, he hit .249 with 3 home runs, 34 RBI, and 23 stolen bases.

Berti was invited to Major League spring training on January 12, 2016, and reassigned to minor league camp on March 10.
He started the season with New Hampshire, and was assigned to Buffalo on April 27.
Berti played in 86 total games in 2016, and hit .256 with four home runs, 33 RBI, and 36 stolen bases.
He spent 2017 with Buffalo and Dunedin, hitting .204 with three home runs, 20 RBI, and 24 stolen bases in 65 games.
On April 21, 2018, Berti was traded to the Cleveland Indians organization for cash considerations.
He appeared in 25 games for the Triple-A Columbus Clippers before being traded back to the Blue Jays organization on June 8.

The Blue Jays promoted Berti to the major leagues on September 26, 2018, and inserted him in their starting lineup that day at second base.
He was designated for assignment on October 5, and outrighted to Triple-A Buffalo on October 9.
He elected free agency on November 2, 2018.
The Toronto Blue Jays selected Berti in the 18th round, with the 559th overall selection, of the 2011 Major League Baseball draft. With the Vancouver Canadians of the Short Season-A Northwest League, he had 23 stolen bases, and hit .291 with 21 RBI. In 2012, he played for the Lansing Lugnuts of the Class A Midwest League and the Dunedin Blue Jays of the Advanced-A Florida State League (FSL). In 110 combined games, Berti hit .241 with 2 home runs, 40 RBI, and 34 stolen bases. In 2013, Berti played for Dunedin and stole 56 bases, the most in the FSL. That offseason, Berti played for the Canberra Cavalry of the Australian Baseball League (ABL) in the 2013–14 ABL season. He stole 31 bases in 46 games, setting an ABL record, and hit .309 with 18 RBI. He stole another four bases in the 2013 Asia Series.
In 2014, Berti played for the New Hampshire Fisher Cats of the Double-A Eastern League. He stole 38 bases, was named an Eastern League All Star, and was assigned to the Arizona Fall League after the regular season. He also set career-highs in games played (136), home runs (7), and RBI (50). In the offseason, Berti played 20 games with the Mesa Solar Sox of the Arizona Fall League, and batted .292 with 3 home runs, 8 RBI, and 6 stolen bases. He would split time in 2015 with New Hampshire and the Triple-A Buffalo Bisons. In 103 total games, he hit .249 with 3 home runs, 34 RBI, and 23 stolen bases.
Berti was invited to Major League spring training on January 12, 2016, and reassigned to minor league camp on March 10. He started the season with New Hampshire, and was assigned to Buffalo on April 27. Berti played in 86 total games in 2016, and hit .256 with four home runs, 33 RBI, and 36 stolen bases. He spent 2017 with Buffalo and Dunedin, hitting .204 with three home runs, 20 RBI, and 24 stolen bases in 65 games. On April 21, 2018, Berti was traded to the Cleveland Indians organization for cash considerations. He appeared in 25 games for the Triple-A Columbus Clippers before being traded back to the Blue Jays organization on June 8.
The Blue Jays promoted Berti to the major leagues on September 26, 2018, and inserted him in their starting lineup that day at second base. He was designated for assignment on October 5, and outrighted to Triple-A Buffalo on October 9. He elected free agency on November 2, 2018.
Jon Berti