The COVID-19 pandemic has dramatically impacted anaesthetic services and the delivery of anaesthetic training across the UK and internationally [1, 2]. Trainee case-load is thought to have been reduced during the pandemic by factors including: redeployment to critical care; cancellation of elective surgery; staff self-isolation, quarantine and shielding; and absences due to sickness. We sought to quantify the effect of these changes on anaesthetic training by exploring logbook data recorded by trainees before and during the pandemic. We performed a retrospective analysis of data from Medberry Anaesthetic Logbook App (Medberry Ltd., London, UK), which we have used as a data source for previously published research [3]. After excluding data from non-UK users and non-trainee grade users, we included a total of 329,670 cases from 534 trainees (233 core trainees, 301 specialist trainees) logged in the UK from 11 March 2016 to 11 March 2021 for analysis.