Since Aug. 1, the Yankees have 23 wins.

In all but two — a Masahiro Tanaka complete game Aug. 15 in Toronto and a 20-6 romp Aug. 30 in Atlanta — they have used Justin Wilson, Dellin Betances, Andrew Miller or some combination of the three in all the victories.

It has underscored a blessing for the Yankees, that manager Joe Girardi has three relievers he trusts so much. Now, the curse. Girardi is — at the least — skirting the line between reliance and over-reliance, use and overuse. Can you get to the finish line of the regular season as a playoff team beyond asking so much of three relievers and believing so little in all others?

Even with a five-run lead — in what would be a 5-0 triumph over the Mets on Saturday — Girardi showed a continuing edginess/itchy finger by using Wilson, Betances and, with two out and two on in the ninth, Miller. Thus, for the seventh time in the Yankees’ last 11 victories, all three were deployed.

Girardi said he thinks his deployment is similar to past seasons. But he also said the Yankees have been in playoff mode for a while, and this is a more bold use of his pen than past years. Girardi has operated this season as if four- and sometimes five-run leads are save situations. He just has not seemed to want to even risk blowing a big lead when every win is going to be so precious to this club. But will there be ramifications for being so aggressive of the big three?

Manipulating a bullpen had been one of Girardi’s strengths in his Yankees term and part of that had been maximizing a David Huff or Brian Bruney or Cory Wade.

But for a variety of reasons, Girardi is without a fourth bullpen piece he trusts. The biggest detriment was the injury to Nate Eovaldi, which not only knocked out a starter who could provide length but forced Adam Warren back to the rotation. Combine that with the collapse of Chasen Shreve, and the two relievers Girardi trusted the most after his big three are either not available or not pitching well.

The problem, though, is deeper. The Yankees believed they had amassed so many power arms that a few would emerge as dependable, especially with rosters expanded in September and all available. The Yankees have 14 relievers and they walked en masse across the field to the visiting pen at Citi Field after the top of the first. But these days it feels as if Girardi would summon Mariano Rivera out of retirement in a big spot besides his main trio.

Girardi, general manager Brian Cashman and pitching coach Larry Rothschild each said they believed someone would step up even at this late date and, in the words of Cashman, “we are still trying to find a comfort level.” But this not the time of year to be holding a tryout camp.

Wilson, Betances and Miller each insisted they are fine with the usage and ready to do whatever down the stretch. But the Yankees do not have another off-day until the finish line and do not play a lot of blowouts, so if Girardi cannot give the ball to someone outside his big three with a four- or five-run edge, when exactly do they rest until then?

The troubles begin with short starts. In the past 14 games, Yankees starters have managed just 10 outs after the seventh inning. Michael Pineda had a shutout with two on after he struck out Yoenis Cespedes for the first out in the sixth. But Girardi thought Daniel Murphy had good at-bats against the righty, so Wilson was summoned, walked Murphy to fill the bases, then struck out four straight to get two outs into the seventh.

That Caleb Cotham was used for one out there (whiffing Kevin Plawecki) might suggest he is the guy Girardi trusts among the chorus. But with the order turning over in the eighth, Girardi called on Betances, hoping if he could throw up a goose egg, Miller would not be used. However, Miller warmed up in the top of the ninth and kept on going as James Pazos got an out and Chris Martin put two on.

Girardi’s theory was he wanted Miller to have two batters before he would face the tying run, so Miller entered and got Travis d’Arnaud to ground out to end the game.

But it was another win with an asterisk. A big lead again was not safe enough in Girardi’s thinking to trust anyone outside the Big Three. How much can he keep pushing that trio?

With their victory Saturday, the Yankees reached 81 wins. The worst they could finish is .500, and one more triumph assures a 23rd straight winning season — a mark topped in major league history only by the 1926-64, Yankees, who had 39 consecutive campaigns.

But keep in mind that from 1926-60, there were only eight teams in the AL and just 10 from 1961-64. The draft did not begin until 1965, so pretty much whoever those Yankees teams wanted they got — there was not nearly as much spreading of talent.

Yes, the Yankees generally have had great financial advantages, but it is underappreciated how difficult it is to win year after year. The second-longest active winning-season streak is eight by the Cardinals (who already have 92 wins this year). The third-longest streak ever is 18 years by the 1968-85 Orioles (hat tip to the great Bob Waterman of the Elias Sports Bureau).

As the Red Sox have shown us a few times — in recent seasons (including this one) as have the 2015 Tigers — having a big payroll and expectations of success does not even guarantee a better-than-.500 mark. The Yankees have carried a weight to win every season, and through injury, poor performance and generally down campaigns they have figured out how to keep a winning product on the field.

It has been impressive.

On some levels of the organization, the Mets have toyed with the idea of Travis d’Arnaud playing some outfield in the future as a way of having Kevin Plawecki on the roster and not losing d’Arnaud’s bat.

However, the notion mainly has been shot down by most Mets officials because a) there is no proof d’Arnaud can handle the position, b) the Mets usually have a great offensive edge when d’Arnaud catches that would not be similar if he played the outfield and c) though the Mets believe Plawecki will be a good player, he has yet to hit enough to warrant playing d’Arnaud less.

D’Arnaud told me the last time he played the outfield was on a summer ball team when he was 18, but added, “If [the Mets] think it will he help us win, I would do it.”

So far, though, it is merely a fleeting thought.