Dallas Mavericks vs. Memphis Grizzlies Prediction: Cooper Flagg vs. Cameron Boozer in NBA Summer League

One of the most anticipated matchups of the entire 2026 NBA Summer League arrives Monday night in Las Vegas when the Dallas Mavericks face the Memphis Grizzlies at Thomas & Mack Center. Both teams are led by top-five picks from this year’s draft — Dallas’ Cooper Flagg and Memphis’ Cameron Boozer — giving this game a level of national attention that most Summer League matchups simply don’t get. As always, remember these are Summer League rosters built around rookies and developmental prospects, not the teams either franchise will field once the regular season starts.

Dallas has struggled through the group stage, sitting at 0-2 after an 87-85 opening loss to the Lakers and a lopsided 91-70 defeat on July 11. Memphis, by contrast, has looked sharp, opening 1-0 in Las Vegas after Cameron Boozer’s first professional game produced a signature moment — he outdueled Chicago’s Caleb Wilson in a 97-96 win despite Wilson’s record-breaking 35-point debut. That result came on the heels of a strong Salt Lake City Summer League showing for Memphis, where Boozer scored 15 points in his very first taste of professional competition.

Mavericks-Grizzlies Odds and What the Numbers Say

Prediction markets tracking Monday’s game have priced it close to even, citing the comparable depth of 2026 draft talent and young contributors on both sides. That’s a notable projection given the disparity in early results — Dallas winless through two games, Memphis unbeaten with a marquee win already on its résumé.

The gap in early form is worth weighing heavily here. Dallas has been outscored by a combined 23 points across its first two games, while Memphis has already knocked off a red-hot Chicago team that produced the best individual scoring debut of the entire event. Markets treating this as a coin flip may be underrating just how much sharper Memphis has looked through the opening stretch. Anyone tracking the full slate can check the live NBA odds page for updated numbers.

Cooper Flagg and Cameron Boozer Headline the Rosters

Flagg has had an up-and-down week by his own lofty standards. He’s shown flashes of the two-way ability that made him a No. 1-caliber prospect, but Dallas’ supporting cast around him — a mix of Ryan Nembhard, John Poulakidas, and rookie big man Tyler Smith — hasn’t provided enough scoring punch to complement him consistently. Morez Johnson Jr. gave Dallas a spark with a strong outing against Golden State, but the Mavericks have otherwise lacked the secondary shot creation to take pressure off Flagg. Bettors interested in this one can check a current FanDuel promo code before wagering.

Memphis’ roster runs deeper than most in the field. Boozer has been the headline name, but Cedric Coward has been every bit as impactful, recording a double-double with 10 points and 10 rebounds and dishing out assists in the win over Chicago. Taylor Hendricks matched Boozer’s 15 points in Memphis’ Salt Lake City opener, and Jahmai Mashack has provided steady playmaking and defense as a connective piece. Olivier-Maxence Prosper, now entering his fourth professional season, gives Memphis a veteran scoring option who led the Grizzlies with 17 points in one of their Salt Lake City tune-up wins. New users can also grab a BetMGM promo code ahead of tipoff.

Early-Week Trends Worth Weighing

One thing evaluators keep circling back to is shot selection. Memphis has been far more disciplined about attacking the rim and getting to the free-throw line, a trend that showed up clearly in the win over Chicago when the Grizzlies out-rebounded the Bulls by a wide margin and controlled the offensive glass throughout the fourth quarter. Dallas, by contrast, has settled for too many contested jumpers, particularly with Flagg drawing extra defensive attention and kicking the ball out to shooters who haven’t been consistent so far this week.

Both teams still have two more group games remaining after Monday, so neither the Mavericks nor the Grizzlies are eliminated from playoff seeding contention regardless of Monday’s result. But a loss here would put Dallas in a difficult spot needing to win out just to have a realistic shot at one of the four playoff berths, while a win keeps Memphis firmly in position for a top seed heading into the July 18 semifinals.

Prediction and Best Bet

Memphis simply looks like the more well-rounded team right now. Boozer has been efficient and unselfish in his debut, Coward has proven capable of filling up a box score, and the Grizzlies already have a signature win over one of the hottest individual scorers in the field. Dallas has the higher-ceiling talent in Flagg, but the surrounding cast hasn’t given him enough help, and a 0-2 start against lesser competition than Memphis has faced is a real red flag heading into this one.

• Prediction: Memphis Grizzlies 96, Dallas Mavericks 89
• Best Bet: Memphis Grizzlies on the moneyline

The Grizzlies get the nod because their supporting cast has been genuinely productive around Boozer, while Dallas is still searching for consistent secondary scoring around Flagg. Memphis’ win over a Chicago team that got a record-setting individual performance from Caleb Wilson speaks to a level of competitiveness Dallas hasn’t matched yet, and that gap should carry over into Monday’s marquee showdown. Bettors can also run their numbers through the betting calculator before placing a wager.