);
NBA

Ja Morant or Zion Williamson? Four stats to know about the Rookie of the Year race

There's still a lot of unknown in regards to how the rest of the season will play out, but there is one thing we can say with confidence.

The Rookie of the Year race will come down to Ja Morant and Zion Williamson.

Morant has been the runaway favourite all season long. As we'll get into, he's having one of the best rookie point guard seasons of recent memory, both in terms of the numbers he is posting on a nightly basis and the impact it has had on a Memphis Grizzlies team that wasn't expected to do much of anything this season.

Williamson, meanwhile, has been sidelined for most of the season after undergoing knee surgery, but it hasn't taken him long to show why he was the No. 1 pick in the 2019 NBA Draft. He's basically broken record after record after record since making his debut and he's helped keep the New Orleans Pelicans' postseason dreams alive.

There's still a chance that the regular season will return, in which case it would give both Morant and Williamson one more chance to strengthen their respective cases. But based on what we know today, who should be this season's Rookie of the Year?

Let's take a closer look at four stats to put the race into perspective.

19: How many games Williamson has played

It would be the least amount of games someone has played and won Rookie of the Year by a mile.

The fewest currently in a non-lockout-shortened season is 50, done by Patrick Ewing in 1985-86. Other than him, the only other players in NBA history who have been named Rookie of the Year while playing in less than 60 games in a non-lockout-shortened season are Terry Dischinger (57) and Brandon Roy (57).

Even if you include Vince Carter and Kyrie Irving, both of whom were named Rookie of the Year in lockout-shortened seasons, they still appeared in far more games than Williamson would have should he not miss another game this season (37).

Fewest games played to win Rookie of the Year
Player Season Games Lockout?
Patrick Ewing 1985-86 50 No
Vince Carter 1998-99 50 Yes
Kyrie Irving 2011-12 51 Yes
Terry Dischinger 1962-63 57 No
Brandon Roy 2006-2007 57 No

So historically, there is no precedent for Williamson winning Rookie of the Year. Even Joel Embiid, who was the last player to miss the majority of the season and still be in the Rookie of the Year race, finished third behind Malcolm Brogdon and Dario Saric - two players he was clearly better than - in voting in his rookie season.

If that's the case, why is this even a discussion?

10.4: The Pelicans' net rating with Williamson on the court

It's not just that Williamson is putting up numbers we've only ever seen from one rookie before. It's that he's already making a difference on a team that is in the playoff picture.

According to NBA.com, the Pelicans are being outscored by 3.5 points per 100 possessions with Williamson on the bench this season. That means there's a swing of 13.9 points per 100 possessions when he steps foot on the court.

That's, uh, not normal.

Not only does that give Williamson the best net rating on the Pelicans, it's superior to the likes of Giannis Antetokounmpo (12.0), LeBron James (11.7), Kawhi Leonard (10.8) and James Harden (5.6), nevermind Morant (1.8). By no means is that to say Williamson is more valuable than they are - the on/off data is far from perfect and there are several factors that contributed to Williamson's net rating being as high as it is, such as Derrick Favors' return to the lineup and the Pelicans' schedule easing up - but it provides some insight into the type of impact he has been able to make.

Whether you look at his raw stats or the advanced ones, Williamson has basically been performing at the level of an All-Star since making his debut with the Pelicans. The problem, of course, is that he's done it in only 19 games. This might not be much of a debate had Williamson played as well as he has in those 19 games for the entire season, but, as we've already gone over, history shows that games played matters.

It is the Rookie of the Year award after all. Also, Morant has been pretty damn good himself.

25.5: How many games the Grizzlies were projected to win this season

There's no other place to start with Morant.

Coming into this season, only the Cleveland Cavaliers and Charlotte Hornets were projected to win fewer games than the Grizzlies. Without Marc Gasol and Mike Conley, the Grizzlies were expected to be a lottery team again, not one that would be gunning for the No. 8 seed in the Western Conference with a 32-33 record at the time of the season being suspended.

Although the on/off numbers don't shine quite as big of a spotlight on him as they do Williamson, Morant has been the driving force in the Grizzlies' success.

On the season, Morant is leading the Grizzlies with 17.6 points and 6.9 assists per game. Those numbers put him in some impressive company. According to Basketball-Reference, Morant is one of only 14 guards in NBA history to average at least 17.0 points and 5.0 assists per game as a rookie, some of the others being Michael Jordan, Magic Johnson, Isiah Thomas, Stephen Curry and Damian Lillard.

Morant has been surprisingly efficient for a rookie point guard, too. Of the 13 other guards who have posted similar numbers in their rookie seasons, Jordan and Johnson are the only ones who did so with a higher true shooting percentage. He's already one of the league's most feared drivers and he's been a far more effective 3-point shooter than he was projected to be coming into the NBA.

What's most impressive about Morant is that he hasn't let up. He hit the ground running and isn't far removed from his most productive game of the season, exploding for 27 points and 14 assists in a much-needed win over the Los Angeles Lakers. Even if Williamson had the highest peak this season, there's no debate that Morant has been the best rookie from start to finish. And even though our NBA.com Staff thinks Williamson will be the better player in five years time, we had Morant only a couple of spots behind him.

In other words, both have proven to be absolute studs this season and this might not be the only time they're going head-to-head with each other for an end-of-season award.

70: How many first-place votes Morant received in ESPN's Rookie of the Year straw poll

And there were only 70 ballots, so nobody else received a first-place vote, which means this might not actually be much of a race.

It's not hard to see why, especially with the amount of unknown in regards to how the rest of the season will play out. Had the season not been suspended and the Grizzlies held on to the No. 8 seed, it's hard to imagine Williamson winning Rookie of the Year over Morant, no matter how well he played the rest of the way. On the other hand, had Williamson led the Pelicans to the No. 8 seed over the Grizzlies, that would've likely made this more of a debate, even if Williamson finished the season having played under 40 games.

For what it's worth, FiveThirtyEight gave the Pelicans a 60 percent chance of making the playoffs compared to a 15 percent chance for the Grizzlies even though Memphis currently has a 3.5 game lead on New Orleans in the standings.

Interestingly, Williamson wasn't included on everyone's ballot in ESPN's straw poll. He still ran away with the second-most points, but Kendrick Nunn, Brandon Clarke, Eric Paschall and RJ Barrett each received some second-place votes and third-place votes over him, likely because of the games played.

The views on this page do not necessarily reflect the views of the NBA or its clubs.

More from NBA.com

#80s
You can't tell the story of the 1980s without...
Carlan Gay
magic-bird-052720-ftr-getty.jpg
Scoring the rivalry: Magic vs. Bird
Scott Rafferty
changes-052720-ftr-getty.jpg
Four players who have become unrecognizable
Scott Rafferty
These five made the First Team? But what about the other 10 spots?
The 1980s All-Decade Team
Micah Adams
Vin Bhavnani
🎥 IG Live with OKC Thunder's Vin Bhavnani
Yash Matange
Klay Thompson vs. OKC Thunder in Game 6 of their 2016 Conference Finals series
OTD: Klay's heroic Game 6 vs. Thunder in 2016
Yash Matange
More News