Video: Vladimir Guerrero Jr. Breaks Home Run Derby Single-Round Record with 29

By hitting 21 home runs, Los Angeles Dodgers outfielder Joc Pederson set a first-round record to open the 2019 MLB Home Run Derby. His mark lasted all of two batters.  

Vladimir Guerrero Jr. eliminated Matt Chapman after going yard 29 times at Progressive Field in Cleveland, which was the most ever in a single round.

Guerrero narrowly edged out Josh Hamilton, who had 28 home runs in the first round of the old Derby format in 2008.

The Toronto Blue Jays third baseman displayed prodigious power in the minors, slugging .636 and hitting 20 homers across four levels in 2018. That hasn't fully translated to MLB just yet as he entered the All-Star break with eight long balls through his first 61 games.

But the Home Run Derby provided a taste of what's to come as he grows more comfortable against major league pitching over the next few years.