Toronto hit six against Minnesota on Sept. 30, 2010, and the Twins and the White Sox combined for six on Aug. 17, 2010. The Twins and the Tigers hit five on Sept. 2 of last year.
Friday's five homers traveled a combined estimated distance of 2,016 feet, including 440- and 431-foot shots from the Cubs' Alfonso Soriano.
Twins manager Ron Gardenhire said it was as small as he's seen the park play. Target Field averaged 1.89 home runs per game this season entering Saturday, the sixth fewest in the American League according to ESPN's Home Run Tracker.
"We saw that during BP yesterday. The ball was really jumping," Gardenhire said. "It's flying today again."