"The hardest play to make is when you get there at the same time as the ball," Hamilton said. "You're moving pretty good when you get there and don't have time to really have a chance to time anything."
Yadier Molina, who raised his NL-leading average to .352 after going 3 for 4 with a walk, greeted Garrett Richards with an RBI single that delivered the seventh run.
The Angels got two runs back in the bottom half on Conger's fifth homer after a two-out walk to Alberto Callaspo. But David Freese scored an unearned run in the Cardinals' third when Richards mishandled a throw from first baseman Mark Trumbo on Carpenter's two-out grounder behind the bag.
St. Louis increased the margin to 10-2 in the fifth on a run-scoring, ground-rule double by Carpenter and an RBI single by Jay, who had driven in only one run in his previous 35 at-bats coming in. It was only his second game this season with three or more RBIs, the other on May 4 when he had four at Milwaukee.
Carpenter ended the scoring in the eighth with his eighth homer, a solo shot off Billy Buckner.
NOTES: Matheny caught Williams when they were teammates in San Francisco during the 2005 season. ... St. Louis LF Matt Holliday didn't play for the second straight night because of a pinched nerve in his neck. ... Cardinals ace Adam Wainwright was named the NL pitcher of the month for June after going 4-2 with a 1.77 ERA in six starts, including a pair of complete-game 7-1 victories over San Francisco and Oakland. He is the only one on the staff this season to average at least seven innings per outing. ... Molina was back in the fifth spot in the batting order, after hitting in the two hole the previous six games and going 7 for 25 with a homer and three RBIs. ... Cardinals LF Allen Craig drew three walks in the first four innings, matching the total he had in 116 plate appearances over his previous 28 games. He has 18 this season in 338 plate appearances. ... Wednesday was the fourth anniversary of Albert Pujols' 10th career grand slam with the Cardinals, which broke Stan Musial's franchise record. ... Jay's only other interleague home run came on June 30, 2011, at Baltimore against Brian Matusz. ... The Angels have committed 61 errors, the second-most in the AL. The Cardinals have made 34, the fewest in the NL. ... Howie Kendrick's 102 hits are the most by an Angels second baseman before the All-Star break.