It was one of the best performances of the year for the left-handed hitting outfielder, who has batted around the Mendoza Line for parts of this season.
"With him, it's about pitch recognition and learning the strike zone a little better," said Cubs Minor League Field Coordinator Dave Bialas.
Plate discipline has been a problem for Colvin at times. Playing in his first full season of pro ball last year, he struck out 101 times and drew only 15 walks.
Although he had an overly success season between High A ball and Double-A (batting .299 and clubbing 16 home runs), Southern League pitchers have exposed his weaknesses at the plate this season. He came into Monday's game with 41 strikeouts in 142 at-bats, which placed in the top five in the league.
While Colvin has struggled at times this season, his showing on Monday could signal the start of a coming-out party. He connected on his first home run – a solo shot to right field – in the bottom of the first inning off Huntsville starter David Welch, and then hit a two-run shot to right-center in the third off Welch again.
He added two doubles – both to the opposite field in left – to cap a 4-for-4 night.
The Cubs say they haven't been alarmed by Colvin's early struggles this season.
"Tyler is ahead of schedule," said Cubs Assistant General Manager Randy Bush. "He's had two great years. We couldn't be more pleased with where he's at.
"He was off to a slow start, but ... we don't put anything into that. His performance the last couple of years is where we put stock. He's an outstanding outfielder that can really swing the bat. He's going to have a great future," Bush added.