I was made aware of this app this morning, and I am all in favor of tools + resources to facilitate good judging (it’s a tough job to do well!) so I thought I’d give it mention:
Even if you’re solely a player and not a judge, you’ve got a vested interest in fair play, so maybe you could pass it along to your local event staff. And if you are someone who judges, check it out! You might find the app helpful.