Miss your guess
Definition 1 of 1
Pro Tip 1/3Prediction Error
It's often used when someone makes an incorrect prediction about an outcome or future event. 
He missed his guess thinking it would rain today; the weather is clear.
Pro Tip 2/3Not about Aim
'Miss your guess’ is not about physical aim, it's about being wrong in decision or opinion. 
You'd miss your guess if you assume all cats hate water; some actually enjoy it!
Pro Tip 3/3Casual Conversations
This phrase is more common in casual speech rather than formal writing or advanced discussions. 
If you miss your guess on the trivia question, we'll lose the game.