This is how far the gap between the Yankees and Twins has widened: The last time there was a situation as non-competitive as this year’s ALDS, Secretariat ran away with the Belmont and grabbed the Triple Crown.

The Yankees and Twins have played two ALDS games at Yankee Stadium and the visitors have been beaten badly in each. Saturday night the Yankees scored seven runs in the third inning to fuel a lopsided, 8-2 victory in Game 2 that was witnessed by a sold-out crowd of 49,277.

Didi Gregorius, who finished the season in a .154 (6-for-39) slump then went 0-for-3 in Game 1 on Friday night, supplied the big blow when a towering home run with the bases loaded landed in the second deck in right field to turn a 3-0 cushion into a 7-0 choke hold.

Gregorius faced Twins reliever Tyler Duffey on Friday in the fifth inning and took a nugget of information away from the at-bat, which ended in a strikeout.

“I was just thinking back to my at-bat that I had against him [Friday] and after I had two strikes he threw me a fastball,’’ said Gregorius, who hit a 1-2 fastball clocked at 94 mph just inside the right-field foul pole for the first postseason grand slam by a Yankee shortstop. “So, I was prepared for [the fastball] this time after he threw me the curveball in the dirt.’’

With six innings remaining the game was essentially over, as the Yankees took a 2-0 lead in the best-of-five affair, which resumes Monday night in Minneapolis.

Luis Severino is scheduled to start for the Yankees, and Jake Odorizzi will be tasked with keeping the sliding Twins season alive.

Masahiro Tanaka was his usual postseason self, providing five innings of one-run, three-hit pitching, and improved to 4-2 with a 1.54 ERA in six career postseason starts.

“I don’t get too caught up on being good in the postseason and all that,’’ said Tanaka, who is 6-0 in six career starts against the Twins (regular season included) with a 2.21 ERA. “Come to think about it I think it’s still a small sample. My thing is just go out there and be the best that you can be and compete.’’

That wasn’t difficult against Randy Dobnak, a right-hander who started the season in Single-A and is listed as a current Uber driver. The Minnesota starting pitcher lasted two-plus innings against the savage Yankees bats, giving up four runs, six hits and walking two.

With a chance to sweep the Twins on Monday and advance to the ALCS for the second time in three seasons, Aaron Boone promised his club wasn’t going to relax.

“Throttle down,’’ the manager said when asked what his message is to a team that has outscored the Twins 79-38 during a 12-game postseason winning streak over the AL Central champions — a team that won 101 games during the regular season yet has as much of a chance to turning the tables on the Yankees as second-place finisher Twice a Prince had of catching Secretariat in the 1973 Belmont, which the latter won by 31 lengths.

Though the Twins are nine innings away from the offseason, Boone expects Target Field to have juice flowing through the cool Midwestern air.

“Obviously the first home playoff game for them, I’m sure the crowd will be energized and we need to go match it,’’ said Boone, whose pitchers have held the muscular Twins line up to six runs in two games and two hits in 16 at-bats with runners in scoring position. “We need to go match it and I know we will. I know the guys, it will be throttle down and hopefully we can get one.’’

They have two chances at Target Field to close out the Twins, and if that doesn’t happen, a deciding Game 5 in The Bronx is this coming Thursday.

Yet, based on the first two games, the Twins are about as overmatched as the rest of the Belmont field 46 years ago.