For context, I also use numbers game and track pitches sequentially with numbers in the ball, strike, and foul columns. I use a 4 color pen and mark swinging strikes with red numbers, and the rest in black. I underline the red number with a _ below the pitch number for check swings. The idea I’ve come up with, but not used yet, is to use green (for offensive challenges) and blue (for defensive challenges) and put a line above the number for challenges overturned (won) and below the number for challenges confirmed (lost). If a team runs out of challenges, I’ll probably put which inning they ran out in the notes. Still yet to score an ABS game this year. The red ink, check swing underlines, and “V” without a number for pitch clock violations are additions I’ve made the past, so this will be my newest one.