If you are only using Incident and not Problem or Change, you could construct a new
Incident Workload query based primarily around the Incident Escalation Point Object
You would need to use the ‘ Expiry Date\Time’ attribute from the ‘ Escalation Point’ object within the query.
Also then add a condition to the query so that it only looks for records where the 'Is Breach' attribute = 1
This should then ensure that the query only returns one record per incident from the Escalation point
object (the only escalation point where you would normally set is breach to 1 is the one at 100%).