This report is the third in a series of publications documenting the process of developing new indicators to better measure good migration governance. The first two publications on the elaboration of the AdMiGov indicators were dedicated to conceptualizing (Pasetti, 2019) and to developing the initial set of indicators (Pasetti and Lebon-McGregor, 2021). The present paper documents and explains the third stage of research, namely the piloting of the AdMiGov indicators in the Netherlands, Turkey, and Spain. The pilot of the AdMiGov indicators has reinforced their value as an indicator set addressing existing literature gaps and promoting better connections between evidence, norms and practices in the field of migration. In-case and comparative insights gathered during the pilot allowed the review and finetuning of the initial set of AdMiGov indicators and highlighted their main strengths and weakness. Despite some limitations related to the specific perspective of “good migration governance”, on the one hand, and the scope of analysis, on the other, the AdMiGov indicators have proven to be an innovative and flexible tool for diagnosing countries’ migration governance systems, identifying main gaps, including: 1) normative gaps of compliance with global standards (GCM, GCR and SDGs); 2) implementation gaps between formal regulatory frameworks (“on paper”) and practical implementation (“in practice”); and 3) thematic gaps related to specific aspects and dimensions in need of improvement. The AdMiGov indicators provide a strong evidence base that can be used for different purposes and by different actors to advocate for, and implement, policy change. ; This report is part of ADMIGOV work package 7, more information https://admigov.eu