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
Explore the archive
BIOL CS courses
BIOL CS
BIOL CS 10
—Average GPA
—A-range grades
1,021 enrollmentsThrough Fall 2025
BIOL CS
BIOL CS 101
—Average GPA
—A-range grades
819 enrollmentsThrough Winter 2025
BIOL CS
BIOL CS 30
—Average GPA
—A-range grades
640 enrollmentsThrough Spring 2026
BIOL CS
BIOL CS 20
—Average GPA
—A-range grades
632 enrollmentsThrough Winter 2026
BIOL CS
BIOL CS 12
—Average GPA
—A-range grades
278 enrollmentsThrough Fall 2025
BIOL CS
BIOL CS 25
—Average GPA
—A-range grades
100 enrollmentsThrough Spring 2020
BIOL CS
BIOL CS 5
—Average GPA
—A-range grades
93 enrollmentsThrough Spring 2026
BIOL CS
BIOL CS 105
—Average GPA
—A-range grades
50 enrollmentsThrough Spring 2026
BIOL CS
BIOL CS 199
4.00Average GPA
100.0%A-range grades
37 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 ↗