be anyone's / anybody's call

/biː ˈɛnɪwˌɒnz ˈɛnɪbˌɒdiz kˈɔːl/

/biː ˈɛnɪwˌʌnz ˈɛnɪbˌɑːdiz kˈɔːl/

to be anyone's / anybody's call

to be difficult or almost impossible to predict the outcome of a situation or event

Examples

1. The score is so close that the game really is anyone's call.

2. At this point it's anybody's call who will win the Science Fair.