A box score published at the final buzzer is not final. Leagues review games afterward and issue statistical corrections, and the categories affected are predictable.
Review compares coding to video
A league statistics group reviews game footage against the entries made live, checking the categories where real-time coding is most error-prone.
The review is systematic rather than complaint-driven, though teams can also submit queries about specific plays.
Corrections are applied to the official record, and downstream systems update, which is why a player's totals can move without any explanation appearing.
Rebounds are the most corrected category
A rebound in traffic involves several players contesting a ball, and determining who established control is difficult in real time from a fixed vantage point.
Team rebounds add complexity, since a ball that goes out of bounds off the defense after a miss is credited to the team rather than to any player.
These are exactly the plays where video resolves what a live view could not, so they dominate the correction log.
Assists and turnovers follow
An assist requires a judgment about whether the pass directly led to the basket, and that judgment is easier to make with replay than at full speed.
Turnovers require attributing a loss of possession to a passer or a receiver, which is often ambiguous and is sometimes reassigned on review.
Blocked shots are corrected less often, since the event is more visually distinct, but altered shots miscoded as blocks do appear.
Why the corrections are small but matter
Individual corrections move a stat line by one, which is immaterial for most purposes and decisive when a player is near a threshold.
Triple-doubles are the visible case. A rebound added or removed the following day can create or erase one that was announced live.
Because the achievement is defined by the official record rather than by the broadcast, the corrected version is the one that counts.
What the correction log tells you about the data
The existence of a routine correction process is evidence that live statistics have a measurable error rate, which is not something leagues advertise.
It is also evidence that the error rate is bounded and understood, since a systematic review would otherwise be unmanageable.
Analysts working with historical data are usually working with corrected figures. Anyone quoting numbers during a game is not.

