This is a downloadable PDF scorecard which I use in preparation for KATTA UK competitions – it is based on 7 rounds of throwing with 3 throws in each round in a single discipline.
you can get the scorecard here: scorecard – 7×3
This is another scorecard but this time it is specifically for knife throwing at all 3 KATTA UK competitive distances – 3, 5 & 7 m respectively. Again, each distance involves 21 throws (7 rounds with 3 knives thrown in each round)
you can get the scorecard here: Throwing scorecard 3-5-7m