Mavs Video: Cooper Flagg Works On Reverse Layups, Floaters and Escape Dribbles

DALLAS - Results Basketball posted a video of Cooper Flagg's offseason training to Instagram, and MFFL Nation shared it on X. Every finishing rep in the clip comes against a defender.

Flagg, the Dallas Mavs' young star, finishes a reverse layup over an outstretched arm. He drives into traffic on another rep, keeps the ball high through the crowd, and gets a floater off against a contest. Another starts with an escape dribble against contact. It ends with a pull-up from short range over a hand.

Results Basketball is the Veazie, Maine, gym owned by Matt MacKenzie, the Mavericks forward's longtime player development coach. MacKenzie also owns Eastern Maine Sports Academy in the same town. He has worked with Flagg and his twin brother, Ace Flagg, for years.

Earlier this week, MacKenzie appeared on the Jimmy C Hoops podcast and listed durability, three-point shooting off the catch and off the dribble, finishing through contact, and decision-making in live reads as the areas of emphasis this summer. Flagg missed eight games with a foot injury as a rookie. He sprained his ankle in the final game of the season.

Flagg played 70 games in 2025-26 and started all of them. He averaged 21.0 points, 6.7 rebounds, and 4.5 assists, along with 1.2 steals and 0.9 blocks, in 33.5 minutes per game. He shot 46.8% from the field and 82.7% from the free-throw line.

He led Dallas in points, rebounds, assists, and steals. Michael Jordan in 1984-85 was the last rookie to do that. Flagg was named Rookie of the Year in April and was later voted to the All-Rookie First Team.

On April 3, Flagg scored 51 points in a 138-127 home loss to Orlando. He shot 19-of-30 from the field, 6-of-9 from three, and 7-of-7 at the line. He had six rebounds, three assists, and three steals. Twenty-four of the points came in the fourth quarter, after former Mavericks coach Jason Kidd and forward Naji Marshall were ejected. At 19 years and 103 days, he became the first teenager in league history to score 50 in a game.

His previous high was 49 points on Jan. 29 in a home loss to Charlotte. On Dec. 15, he scored 42 in an overtime loss at Utah.

Dallas opened the season with Flagg starting at point guard. Kidd ended that arrangement after seven games. Flagg averaged 13.6 points, 6.3 rebounds, and 2.9 assists across those seven games. He shot 38.8% from the field.

The Mavericks finished 26-56 and missed the playoffs for the second straight year. Masai Ujiri took over basketball operations in the spring and hired Mike Schmitz as general manager and Dusty May as head coach. Dallas drafted Morez Johnson Jr. ninth overall in June and acquired Santi Aldama and Marcus Sasser along with the draft rights to Tarik Biberovic in a six-team trade. Kyrie Irving is back after missing most of last season with a torn ACL.

Flagg is due $14,517,480 in 2026-27, the second season of a four-year rookie contract worth $62,730,226. The deal carries a $15.2 million team option for 2027-28 and a $19.1 million team option for 2028-29. He turns 20 on Dec. 21.

Flagg and his brother are scheduled to run a two-day youth camp at the University of Maine's Memorial Gym in Orono on Aug. 15 and 16. It is the third consecutive summer they have held the event. Registration is $249 before fees, and the camp is open to children ages 6 to 13.

The NBA China Games are set for Oct. 9 and Oct. 11 at The Venetian Arena in Macao. Dallas plays Houston in both.