Trout hasn't noticed any recent trends, though.
"Every series, there's something different, but nothing off the top of my head that comes up," he said. "I'm always making adjustments. That's the key to hitting. One at-bat, they'll pound you in, and one at-bat they'll paint you away. Just recognizing your pitch and not trying to chase early in the count."
Despite this recent small skid, Trout still sports a .324/.382/.516 slash line, with six homers and 16 stolen bases, making him an ideal candidate for the All-Star team and perhaps the American League Rookie of the Year Award.
Trout has seen more fastballs this year -- 68.2 percent, compared to 58.2 percent in his first year in the Majors, according to FanGraphs.com. On Sunday, D-backs ace Ian Kennedy retired him in his first three plate appearances with a steady diet of cutters. But his fourth time up, Trout drove a first-pitch cutter for a key RBI double.
Trout, at 20, is already uncommonly good at adjusting on the fly. It's tough to hone in on one strategy to get a hitter out when that's the case.
"I don't think we've seen anything from pitchers that Mike wouldn't expect or wouldn't understand," Angels manager Mike Scioscia said. "What Mike's going through right now is very routine for any player. At times, you're going to hit the ball in, and at times you're going to be facing some pitchers that are executing well."