I believe the entry requirement for the WNBA is way more strict than the NBA. I think a player has to be 4 years out of HS. Can you imagine if the NBA had that same rule? I would guess someday some young lady is going to test that.
Oregon junior Satou Sabally to enter WNBA draft after season
From the article:
Sabally is eligible for the draft, which will be held April 17, because she turns 22 during this calendar year.
Not many juniors have left early for the WNBA draft -- mostly because they haven't been eligible from an age standpoint.
Players who compete collegiately are eligible for the WNBA draft if they have graduated from a four-year college prior to draft day, or within a three-month period after, or if they turn at least 22 years old in the calendar year in which the draft is held. They also can be eligible if their original college class has graduated (for instance, if a player is a redshirt junior).
In the case of Sabally, she turns 22 in April. In recent years, players such as Notre Dame's Jewell Loyd (2015) and Jackie Young (2019) both were draft-eligible juniors because they turned 22 in the calendar year of the draft and opted to go early. Both were selected No. 1.
Tennessee's Candace Parker, the No. 1 pick in 2008, left after three seasons of college competition but had been in school for four years after having redshirted because of a knee injury.
Sabally was ready to do more work in the classroom, too, but says she will graduate this summer -- she always intended to get her degree in three years -- with a bachelor's degree in general social sciences, with a concentration in crime, law and society, as well as a minor in legal studies.
"If I wouldn't have graduated this summer, I wouldn't have left," said Sabally, who plans on going to law school in the future.