This was an awesome tool for scouting opposing players on the teams I saw more than once. I filled the Player Scouting Sheet out for each game for each player for the entire season. At the end of the year I had a binder which had all the teams in it so that when we played them I could just pull out the team and organize them according to their line up and away I would go.
Of course there are numerous computer and phone apps that you can use but I found this to be the simplest and most visual tool. Easy to do and not complicated at all.
I used a different color ink for each of my pitchers so I knew what the batter would do in front of them. There are awesome pens for that with 4 colors on them.
I loved it and when we used it at the end of the season we surprised a lot of teams.
The numbers are the number of at bats against that specific team.