This exploratory cross-case study: (a) examined self-regulated learning (SRL) during 3 studying episodes, and (b) explored ways 8 students of varying proficiencies productively self-regulated their learning. Profiles of SRL were constructed by examining traces of studying activity, test performance, and student reflections. Profiles were used to: (a) identify individual strengths and weaknesses, (b) compare pairs of High, Low, Average, and Improving students, and (c) construct a model of SRL proficiency. SRL proficiency (skill, will, and adaptation) was not consistent with performance. This study illustrates the importance of collecting multiple measures of SRL as a series of events over time.