BOSTON — Aaron Boone has said repeatedly the Yankees’ offense is getting better and the quality of at-bats is improving.

To an extent, it’s true — but their issues with runners in scoring position have not diminished.

They entered Saturday’s game still dead last in the American League in OPS with runners in scoring position (.630) — ahead of only the Pirates (.628) in the majors.

It hurt them again in Friday’s loss to the Red Sox, when they went 2-for-9 and hitless in their last six at-bats after Gio Urshela was thrown out at the plate with no one out in the second.

While Gary Sanchez, Aaron Judge and Giancarlo Stanton have all been solid in those situations, each with an OPS of over .800, everyone else on the team is under .700.

When taken together with the other issues facing the offense, it’s easy to see why they’ve made mistakes on the bases, pressing for more runs.

They’re hoping the return of a healthy Luke Voit, which they are confident will lengthen the lineup, can turn the tide.

In the meantime, Sanchez and Judge have been left to carry much of the offense, with DJ LeMahieu slowly emerging from a season-long slump.

And though their runs per game have improved of late, even Boone has lamented their inability to take advantage of the increased traffic they’ve been able to create of late.

Among the culprits is Gio Urshela, with just a .551 OPS in such situations. Voit has also been unproductive in limited action, but he was unproductive in all categories before his recent return from a strained oblique. He’s looked like a different hitter since coming back.

Voit’s turnaround won’t be enough to fix the entire roster’s issues in those spots, but the length and power he provides should have an impact throughout the batting order.

The problems — much like the baserunning mistakes that have haunted them this season — have seemingly come out of nowhere.

They led the American League in the category and topped the majors in 2019.

“Just continue to work,’’ hitting coach Marcus Thames said of the team’s approach in those situations. “These guys have done it before.”

Boone also believes the offense is “ready to break through,” but in order to do that, they can’t afford to be the second-worst team in the majors at driving runners in.

The recent uptick in home runs has made the problem less severe, but they failed to homer in Friday’s loss. That, combined with an inability to produce a hit with a runner on second or third after the second inning is what doomed the Yankees on Friday.

Third base coach Phil Nevin, rightfully hard on himself for sending Urshela on a Miguel Andujar single to right against Hunter Renfroe’s strong arm, said the play was “the turning point of the game.”

In some ways, he was correct, since the Yankees’ offense went silent after the play and the Red Sox came up with their fourth straight victory over the Yankees this season.

But in other years, they would have been expected to keep coming after the Andujar single and deliver more than just five hits — and no runs — the rest of the way.