Why specify starters in book?

[Scrapper1]

Originally Posted by mbyron

The book records who is on the floor at all times.

Is this true? Does the official book make a note of every time a player comes into or out of the game?

[BillyMac]

Originally Posted by Scrapper1

Does the official book make a note of every time a player comes into or out of the game?

By rule, yes, when they enter the game. The rules do not seem to require a record of when they go out of the game. Most scorebooks I've seen have places to mark quarters played.

2-11-1: Keep a record of the names and numbers of players who are to start
the game and of all substitutes who enter the game.

[Scrapper1]

Originally Posted by BillyMac

By rule, yes, when they enter the game.

Right, but this is very different from keeping track of who is on the floor at all times.