split decision
US /ˌsplɪt dɪˈsɪʒ.ən/
UK /ˌsplɪt dɪˈsɪʒ.ən/
1.
a decision in a contest, especially boxing, in which the judges are divided in their opinions, with one or two judges favoring one contestant and the others favoring the opponent
:
•
The boxing match ended in a controversial split decision.
•
Despite the close fight, the judges rendered a split decision in favor of the challenger.