The Lagoon course explorerUC Santa Barbara
A little clarity.
A better quarter.
Explore the grade history behind your next classes.
Real UCSB data. Free to explore.
10,653 courses with historical dataRecords through Summer 2026
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MARSC courses
MARSC
MARSC 595
0.00Average GPA
0.0%A-range grades
1,718 enrollmentsThrough Spring 2026
MARSC
MARSC 596
3.99Average GPA
99.4%A-range grades
158 enrollmentsThrough Winter 2021
MARSC
MARSC 599
—Average GPA
—A-range grades
10 enrollmentsThrough Fall 2019
MARSC
MARSC 598
—Average GPA
—A-range grades
3 enrollmentsThrough Fall 2019
About the numbers
Historical grade data from the Daily Nexus, obtained from UCSB’s Registrar through public records requests. Available records extend through Summer 2026. Course history is not a list of current offerings. Dataset retrieved .
GPA and grade percentages use letter grades only, weighted by the number of grades. A range includes A+, A, and A−. Repeated enrollments count separately. Past grades don’t predict your result or a course’s workload. How to read grade distributions ↗