With the women’s college basketball season approaching, I wanted to share a rules interpretation update that I anticipate will cause some confusion this season…
First, 2026–27 is NOT a rules-change year for NCAA women’s basketball. However, the NCAA has issued several clarifications and updated interpretations, including one involving the 10-second backcourt violation.
I’ll do my best to explain this based on my understanding…
What’s changing?
Previously, when a team gained possession in its backcourt with a fresh 30-second shot clock, officials would rule a 10-second violation when the shot clock displayed 20 seconds.
Beginning this season, officials will instead use 19 seconds as the threshold.
The NCAA’s new guidance is straightforward:
Shot clock at the start of a new 10-second count − 11 = the number at which a violation occurs.
Why the change?
Some shot clocks immediately change from 30 to 29 when started, even though only a fraction of a second has elapsed.
That means when the shot clock first displays 20, the team may have only possessed the ball for 9.1 seconds. Our mechanics dictate that we use the shot clock to rule on a 10-second violation, not a visible count (unless the shot clock is off).
Under the updated interpretation:
- 30 seconds: The possession begins.
- 29 seconds: The clock may have only been running for 0.1 seconds.
- 20 seconds: Only 9.1 seconds may have elapsed. No violation yet.
- 19 seconds: At least 10 seconds have elapsed. A violation should be called if the ball remains in the backcourt.
This interpretation applies regardless of the arena’s shot-clock configuration.
What about situations where the shot clock doesn’t reset to 30?
The same interpretation applies when a team is entitled to a new 10-second count.
For example, if the defense kicks the ball while the shot clock displays 27 seconds, the offense receives a new 10-second count. Assuming the shot clock remains at 27, the violation threshold becomes 16 seconds (27 − 11).
There are exceptions to when a new 10-second count is awarded. Certain stoppages, including timeouts, defensive out-of-bounds violations, and held balls where the offense retains possession, do not reset the count.
Additionally, when the shot clock is off, officials use the game clock and subtract exactly 10 seconds instead.
My thoughts
As an official, I anticipate this creating some confusion early in the season, particularly at the lower levels of collegiate basketball. Candidly, I haven’t completely wrapped my head around this yet. This is one of those fundamental rules that has been the same for my entire officiating career, so reworking my brain will be interesting. I'm glad I've got scrimmages ahead of me before games start to matter.
Coaches, players, broadcasters, and fans have become accustomed to watching for 20 on the shot clock. Now, you’ll see teams seemingly being allowed an additional second before a violation is called.
I also anticipate some growing pains among officiating crews as we adjust to the updated interpretation, particularly in situations involving interrupted counts or shot clocks that aren’t reset to 30.
The rule itself hasn’t changed. Teams still have 10 seconds to advance the ball into the frontcourt. The NCAA is simply clarifying how officials should determine when those 10 seconds have elapsed.
I wanted to share this before the season begins because I fully expect we’ll see clips circulating of what appear to be missed 10-second violations when officials are actually applying the updated interpretation correctly.
So, if you’re watching a game this season and wondering why the official didn’t blow the whistle when the shot clock hit 20, now you know!
