The Knicks won the regular-season series over the Cavaliers with three victories in four games, and they did so in impressive fashion, taking the final game in Cleveland despite the absence of Julius Randle due to a sprained left ankle.

The playoffs, in which the Knicks and Cavaliers will face off in a best-of-seven, opening-round series beginning next weekend, are a different animal from the regular season.

There are trends, however, that could reveal what to expect.

The Post digs into the numbers:

Star watch

Neither team could hold the other’s star guard in check.

Both Donovan Mitchell and Jalen Brunson were unstoppable across the four contests, and in the last meeting, on March 31, they combined for 90 points on a ridiculous 34-for-55 shooting display.

Mitchell averaged 31.8 points versus the Knicks this season and shot a robust 50 percent from the field.

Brunson tallied 25.3 points and 6.0 assists on 47.5 percent shooting.

In the first encounter, Mitchell was dominant, producing 38 points and 12 assists in the Cavaliers’ lone win.

But in the next three games, Brunson was better in crunch time, making a statement in the final matchup with a 48-point outburst.

One other factor to note: The Knicks didn’t have Quentin Grimes, who was out with a foot injury, in the first game, and Josh Hart only played in the last contest.

Those are the two players expected to defend Mitchell the most in this series.

This was a mismatch.

The Knicks’ reserves were dominant, outscoring their Cleveland counterparts by nearly nine points per game.

The Knicks’ bench also had a plus-10.5 net rating, meaning they outscored Cleveland by 10.5 points per 100 possessions.

In fact, the Cavs’ best bench player during the season series was Kevin Love, who is no longer with the team.

Isaiah Hartenstein had a big role in the Knicks’ second win, on Jan. 24, when he was there to stop Mitchell on a drive in the final seconds with his team nursing a two-point lead.

In his one game against the Cavaliers, Hart made his presence felt, producing 11 points, seven rebounds and a plus-18 rating, while Sixth Man of the Year candidate Immanuel Quickley was productive in the four games, averaging 10.5 points and 3.8 assists along with a net rating of 17.6.

Neither team defended the 3-point shot well.

The Cavaliers shot 38.7 percent from distance, while the Knicks made 39.2 percent of their attempts.

Both figures were well above the teams’ regular-season averages.

The two teams attempted more 3-pointers than their normal allotment and made more, too.

Three Knicks in particular — Julius Randle, Obi Toppin and RJ Barrett — shot significantly higher percentages from deep against Cleveland than they did during the season otherwise.

Toppin shot the 3 at a through-the-roof 45.5 percent clip, Barrett was at 43.5 and Randle hit on 40.9.

Barrett, for instance, is shooting a career-worst 31.0 percent from deep in the regular season.

For the Cavaliers, Mitchell attempted a whopping 11.8 3s, up considerably from his 9.3 regular-season average, and made 46.8 percent of them.

A 34.1 percent 3-point shooter, forward Dean Wade went 7-for-11 on long-range tries against the Knicks.

The Knicks won the battle on the boards in each game, twice by significant margins.

In the four contests, the Knicks produced an offensive rebounding percentage of 32.8 and defensive rebounding percentage of 75.4, both up from their strong numbers throughout the season.

The Cavaliers’ marks in those categories: 24.6 and 67.2 percent, respectively.

The Knicks’ rebounding margin was an average of plus-8.2 in the series, and they notched 15.5 second-chance points compared to 6.5 for Cleveland, a wide divide.