Calhoun went 1-for-4 with a solo home run in Monday's 3-2 loss to the Rockies.
Calhoun went deep in the third inning to get the Diamondbacks on the board. The 32-year-old hasn't hit well overall, with a .228 batting average, but his .515 slugging percentage would be the highest of his nine-year career if he can sustain it all season. He's up to eight homers, 19 RBI and 17 runs scored in 28 games.