In UK Higher Education, examiners are placed in a privileged position, able to apply adjustments to grades and confer awards in line with institutional regulations. Most frequently, examiners utilise dense tabulations of marks that blend into one another. This paper proposes an objective visual approach and prototype system, which can be used to chart students’ journeys through their programme and visually reason about their performance. We also present the evaluation, made during a trial within the School of Computer Science at Bangor University. The results of the evaluation are favourable.