Through the first two years of her WNBA career, Seattle Storm star Breanna Stewart is a case study in the limits of both our perceptions as fans and advanced analytics.
Read almost any story about Stewart’s on-court performance and her defense is bound to earn a graf or two. Even when Stewart is mentioned in passing, her contributions on the defensive end are likely to receive a mention.
It’s not hard to see why. Stewart ranked third in blocks per game (1.9) as a rookie and then sixth (1.6) in her second season. She finished runner-up to Sylvia Fowles in the 2016 Defensive Player of the Year voting, collecting eight votes. To put Stewart’s 1.7 blocks per game in perspective, only six players in WNBA history have averaged more blocks on a nightly basis over their careers.
The quintessential Breanna Stewart block—we’ll call it a Brenial™—arguably came in what was her fourth game as a pro. Bria Hartley beat Jewell Loyd and appeared to have a clear path to the basket on the baseline. However, Stewart reacted quickly to rotate over and swat Hartley’s attempt away with two hands.



