Grizzlies host the Kings on Saturday after a 5-0 start

The line, and the record

Cameron Boozer recorded 18 points, 12 rebounds and 12 assists in Memphis' 124-103 road win over Portland on Thursday night. At 19 years and 103 days old, the rookie became the second-youngest player in NBA history to post a triple-double, behind Josh Giddey, who was 19 years and 84 days old on Jan. 2, 2022.

The NBA's report adds two distinctions that matter more than the age line. Boozer is the youngest player to record a triple-double in a win, and the youngest frontcourt player to do it, passing Victor Wembanyama, who was 20 years and six days old in January 2024. Boozer is the third pick in the 2026 draft and the youngest player in the league.

The age line is the headline, but the line itself is the reason the game stayed close to a record. Boozer scored 18 points on efficient shooting, and the 12 assists mean Memphis ran a significant share of its half-court offense through a rookie on a night it needed a road win.

Done in five games

The triple-double came in Boozer's fifth NBA game. Only three other players have recorded one that early: Oscar Robertson in 1960, Art Williams in 1967 and Ben Simmons in 2017. That list is short because the stat requires three things to go right at once, and a rookie usually gets the minutes for one of them, not all three.

Boozer's size is part of the explanation. He is listed at 6-foot-8 and 250 pounds, which lets Memphis use him as a frontcourt passer rather than a finisher only. The 12 assists are the part of the line that separates this from a big man's rebound-and-putback night.

Memphis did not need him to do it alone. The Grizzlies won by 21, which is the kind of margin that lets a young player's passing role look natural rather than forced; a closer game would have pushed the same possessions toward veterans.

What it means for a 5-0 team

The win moved Memphis to 5-0, the second 5-0 start in franchise history after 2014-15. Thursday's game matched two of the last three unbeaten teams in the league; Houston is now the only other one. That is a small-sample table, but it is the table the league is keeping in late October.

The Grizzlies' start came without a settled rotation around Boozer, which makes the record harder to read as a finished product. A rookie producing a triple-double is a data point about his role; a team winning five straight is a data point about the schedule and the health of the roster. The two are related without being the same claim. Our national viewing guide lists where Memphis games appear this season.

The schedule is part of the 5-0 story. Memphis has not yet played the teams most projections put at the top of the West, and the two unbeaten teams met on Thursday, which guarantees the list shrinks by at least one. That is not a knock on the start; it is what a five-game sample can and cannot contain.

The rookie class around him

Boozer debuted at No. 1 on the league's first Kia Rookie Ladder of the season, ahead of Golden State's Yaxel Lendeborg and Chicago's Caleb Wilson. Those rankings are a month-one exercise, and the ladder itself says as much, but they establish where the league's own coverage places him.

The larger question for Memphis is workload. A 19-year-old playing a passing role in the NBA takes contact on every possession, and the Grizzlies have to decide how many minutes that role justifies in November. The triple-double does not answer that, and it does not need to. The NBA Cup explainer sets out the group-stage dates that follow.

For a franchise that has rebuilt around young players, the rookie ladder placement matters less than the way the team uses him. Boozer is handling the ball at the top of the key, not only finishing at the rim, and that role is what produced 12 assists in a single game.

The league's rookie coverage has already compared him with Lendeborg and Wilson, both of whom are older and play different roles. Boozer's case is unusual because his value is tied to passing from a frontcourt position, which is harder to project than scoring.

Sacramento next

Memphis hosts Sacramento on Saturday night. The Kings are 0-5, which makes the game a different kind of test: the Grizzlies will be expected to win, and the rookie's stat line will be compared with the one he just posted.

That expectation is the price of a start like this. The NBA's own coverage has already placed Boozer in the record books next to Giddey and Wembanyama; the rest of the season will decide whether the comparison is a milestone or a pattern. Our look at another West opener covers a rival's first week.

The Kings game will be a different test because Sacramento is winless and will treat it as a chance to stop a slide. Memphis will be favored, and the rookie will be defended as a passer rather than surprised by the league.

A win over Sacramento would make the start six games, which is still too short to settle anything. It would, however, keep the Grizzlies in the group of teams whose October record is being discussed in November.