Interim relief is critical in any form of dispute resolution. Parties must have the option to seek interim measures, like preliminary injunctions and attachments, where their adversaries threaten to take action which cannot be undone by after-the-fact damages. Parties in international arbitrations are no exception. Unlike prior studies, however, I test these procedures in action by comparing them in four hypothetical scenarios, consider expedited proceedings as an alternative to interim relief, and compare a much broader group of rules. I conclude that, while no single set of rules provides the full range of possible options that a party might want, those institutions that have sought to address the problem have come up with several viable procedures (particularly pre-tribunal referee procedures) that other arbitral institutions should consider adopting.