Be close to/near the mark
Definition 1 of 1
Pro Tip 1/3Context Clues
Context helps you understand if it's about accuracy or appropriateness. Look for clues! 
Your prediction for the game's outcome was near the mark.
Pro Tip 2/3Unofficial Tone
Usually used in casual or informal discussions, not formal documents. 
He's close to the mark with his assessment of the situation.
Pro Tip 3/3Subjective Estimate
Implies a personal estimate or opinion, not a scientifically measured one. 
Her estimate of the crowd's size was close to the mark.