"It wasn't one thing that got me going, just a little adjustment here and there -- make sure you keep your front side in, all those basic little things that sometimes you get away from," Blackmon said. "It all came together.
"When you're here, it's a litmus test. You see how things are going and prepare yourself against some really good competition. I went down, tried to make my adjustments."
The promotion earlier this year was the first time Blackmon hasn't impressed at the big league level. He had a strong early start as a rookie in 2011, but suffered a broken foot and missed the rest of the year. Last season, injuries kept him out of the big leagues until late in the season, but he hit .283 with eight doubles in 42 games.
This could represent a chance to prove he belongs. Two outfielders called up earlier, Corey Dickerson and Tyler Colvin, are hitting .179 and .162, respectively. Blackmon didn't start Monday's game against the Padres at Petco Park, however. Dickerson was in left field in place of Carlos Gonzalez, who was nursing a sprained right middle finger. Colvin played center.
Blackmon said he doesn't know what is planned for him, but he hopes being called up in San Diego is a good omen. It's where he made his Major League debut on June 7, 2011.
"I told my dad, I'm back where it all began," Blackmon said.
Thomas Harding is a reporter for MLB.com. Read his blog, Hardball in the Rockies, and follow him on Twitter @harding_at_mlb. This story was not subject to the approval of Major League Baseball or its clubs.