SEATTLE — Aaron Boone is well aware what resting people can do for performance but he doesn’t look at giving players days off as a sign the Yankees backed off the accelerator as they race toward the first AL East title since 2012.

The Yankees lead the second-place Rays by 9 ¹/₂ lengths after Monday night’s 5-4 win over the Mariners.

Boone planned on giving most of his regulars a day off during the three-game series ahead of Thursday’s scheduled day off.

“That doesn’t mean the urgency or the foot on the gas pedal changes,’’ Boone said. “That is something the guys take a lot of pride in and that never changes.’’

An example of that was Aug. 17 at home against the Indians in the third game of a four-game series when Boone rested Aaron Judge and Gary Sanchez. Instead, Boone started Cameron Maybin in right and Austin Romine behind the plate. They combined to go 1-for-5 and the Yankees won, 6-5.

The Yankees have won the last 11 games started by a lefty. And they will see lefties in Yusei Kikuchi on Tuesday night and former Yankees prospect Justus Sheffield on Wednesday.

Prior to beating Clayton Kershaw and the Dodgers on Sunday in Los Angeles, Boone offered a simple explanation for his club’s success against lefties.

“We can hit and beat a lot of people. For a while there I thought we were actually hitting better against right-handed pitching,’’ Boone said. “I think that is something that can be a little up and down.’’

The Yankees last loss in a game started by a lefty was July 22 against the Twins’ Martin Perez in Minneapolis. The Yankees are 26-14 in games started by lefties this season.

The Yankees are done with interleague play, having gone 12-8 against the NL teams. During the 23 years of interleague action the Yankees have had 19 winning seasons.

Boone’s explanation for why the Yankees set a major league record Sunday for home runs in a calendar month with 61 was direct.

“We hit homers. We got good hitters, good power hitters. We are going to have those kind of marks fall every now and then,’’ Boone said before the Yankees blasted three more homers to get to 64 for the month.

The Yankees trail the Twins by nine for the major league lead in homers. The Twins have 253 to the Yankees’ 244.

That 244 is the tied for the third highest total in franchise history. Last year’s team hit a major league record 267 homers.

Judge went homerless Monday night, but had hit three homers in the previous three games and four in the previous six. With a homer in any of the next five games he would be the third fastest player in major league history to reach 100 homers. Judge played his 369th career game Sunday and homered off Kershaw.

Ryan Howard (325 games) and Gary Sanchez (355) games are the two fastest to 100.

Judge is hitting .351 (13-for-37) with four homers and six RBIs in the last nine games. The hot streak followed a .097 (.3-for-31) in the previous eight games.