Babe Ruth, Willie Mays and Eddie Mathews each have seven.
It was a welcomed start for Dunn, who became just the second player in MLB history to have more strikeouts (177) than batting average points (.159) with at least 35 plate appearances last season.
After signing a four-year, $56 million deal with the White Sox last season, Dunn struggled so badly he was regularly booed at home. He finished last season on an 0-for-22 slump.
Dunn re-dedicated himself during the offseason, working on his hitting for the first time. His old routine had worked well for him as he had five straight seasons of 40 or more home runs.