Over the last month of the regular season, Xander Bogaerts hit.284/.393/.411. Prior to this, he’d hit .271/.333/.401 for the first five months of the season season. The most notable difference over the past month hasn’t been his slightly heightened batting average, nor extra power reminiscent of his 2016 form, but his ability to take a pitch and get a free pass to first base.
His line over the past month looks pretty similar to his career playoff line - .282/.370/.410, albeit in only played 15 postseason games. From an outside viewpoint, it looks like Xander is in postseason form just on time.