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
CHEM CS courses
CHEM CS
CHEM CS 103
—Average GPA
—A-range grades
343 enrollmentsThrough Fall 2019
CHEM CS
CHEM CS 11B
—Average GPA
—A-range grades
120 enrollmentsThrough Winter 2026
CHEM CS
CHEM CS 11A
—Average GPA
—A-range grades
101 enrollmentsThrough Fall 2025
CHEM CS
CHEM CS 11C
—Average GPA
—A-range grades
98 enrollmentsThrough Spring 2026
CHEM CS
CHEM CS 10
—Average GPA
—A-range grades
62 enrollmentsThrough Fall 2018
CHEM CS
CHEM CS 110
—Average GPA
—A-range grades
26 enrollmentsThrough Winter 2019
CHEM CS
CHEM CS 199
—Average GPA
—A-range grades
7 enrollmentsThrough Fall 2019
CHEM CS
CHEM CS 5
—Average GPA
—A-range grades
3 enrollmentsThrough Spring 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 ↗