judgment call

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun sports A ruling by an umpire, referee, or similar official during a sporting event, based on his or her perception of events and in the absence of any objective measurement.
• noun Any decision or other determination based on subjective criteria, especially one which takes into account the particular circumstances of a situation.
• noun Christianity The summons which will call the spirits of the deceased to their heavenly reward at the time of Final Judgment.