Orioles manager Buck Showalter contends momentum in baseball is only as good as the next game’s starting pitching, and that doesn’t necessarily spur winning streaks.

In their 18-7 victory over the Boston Red Sox on Sunday afternoon — the most runs the club has scored in a game since 2006 — the Orioles received a much-needed, quality performance from right-hander Bud Norris while Boston’s Wade Miley imploded in a six-run third inning.

Showalter acknowledged he was thinking about the momentum theory while watching his offense put up video-game-like numbers Sunday, hours after David Lough’s walk-off home run in the 10th inning on a tense Saturday night during which Camden Yards had to be locked down for more than an inning due to a volatile downtown protest against police.

“Certainly looked like it today,” Showalter said about a carry-over effect from Saturday evening. “But I think it had more to do with Bud being good and a good pitcher not having a good day in Miley. That's usually where it's traced back to.”

Time will tell whether Lough’s homer is the spark the Orioles (9-10) needed to get out of their early malaise — they had lost five straight heading into that game — and properly defend their American League East title. There are different opinions within the clubhouse.