The online publication of employment tribunal (ET) decisions in England, Wales and Scotland marks a watershed moment, opening up new innovative avenues for legal research, and promoting transparency in labour law decision-making. Drawing on this ‘dataset’, and using age discrimination decisions as a lens to facilitate analysis, this paper reflects on the advantages and limitations of using online ET decisions as a data source to support labour law research. By considering matters of time in age discrimination decisions – both in relation to time limits for bringing a claim, and ET delays – this paper uses innovative empirical findings to map the limits of the individual enforcement model adopted by discrimination laws, and illustrates some of the barriers to successfully bringing a claim for discrimination.