Two of the NBA’s best teams, the Oklahoma City Thunder and Cleveland Cavaliers, meet on Wednesday (7 p.m. on ESPN).

Cleveland has a league-best 31-4 record, while Oklahoma City is right behind the Cavs at 30-5. It’s the first time these two teams have played this late in a season where both are tied for first place in their respective conferences.

This is also only the second season in NBA history in which multiple teams started 30-5 or better. This also happened in 1971-72, when the Los Angeles Lakers started 32-3 and the Milwaukee Bucks started 30-5.

Here’s a look at the key numbers when the Thunder and Cavaliers face off.

Rare win percentage matchup

Both teams have a winning percentage of over .850 before Wednesday. Since the teams have played a total of 70 games, it is the third most combined game in a matchup between two teams with a winning percentage of .850 or better.

In 2016, the Golden State Warriors and San Antonio Spurs surpassed that mark twice, the first meeting after 88 games played and later at 136. Oklahoma City and Cleveland meet again on January 16th.

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Hot streaks

The two teams go into the duel with successful streaks – especially the Thunder. They are on a franchise-record 15-win streak – their loss in the NBA Cup Finals does not count toward the regular season.

The Cavaliers, on the other hand, are on a 10-game winning streak with each victory coming by double digits, making it the longest such winning streak in NBA history.

Wednesday marks the third time in NBA history that teams with double-digit winning streaks will meet. It’s the first time since the Lakers and Portland Trail Blazers met in 2000.

Oklahoma City will also become the third team in NBA history to take on the team with the best record in the NBA while riding a 15-game winning streak. The Phoenix Suns last achieved this in November 2021 when they defeated the Warriors and extended their winning streak.

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Point differences predict gold

It’s been a dominant season so far for the Thunder and Cavaliers.

Oklahoma City boasts a league-leading PPG differential of plus-12.1, which would be the fourth-highest all-time in a single season. Cleveland is close behind with an average point differential of plus 11.8.

If this margin holds, it will be a strong sign for both sides. Every team in NBA history with a PPG differential of plus-11.3 or better in a season won the NBA championship, including last season’s Boston Celtics (plus-11.4).

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It is done in different ways

Although victory was the common denominator for Oklahoma City and Cleveland, they did their best on opposite sides of the floor. The Thunder lead the NBA in defensive efficiency with 102.7, while the Cavaliers are first in offensive efficiency with 121.3.

Oklahoma City leads the league in opponents’ points per game, field goal percentage and 3-point field goal percentage, among other things. Cleveland is first in points per game, field goal percentage and 3-point field goal percentage.

The Thunder have also held their opponents to under 100 points 16 times this season, which is the most in the league. Guard Shai Gilgeous-Alexander has played a key role in their defensive dominance – he is the only player in the NBA to average two steals per game and one block per game.

The Cavaliers are no different on offense, led by guards Darius Garland and Donovan Mitchell. They are on pace to be the first team in NBA history to attempt more than 40 three-pointers per game and hit over 40% of them.

ESPN Research contributed to this story.