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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ECON
ECON 10A
2.59Average GPA
22.4%A-range grades
20,264 enrollmentsThrough Spring 2026
MATH
MATH 4B
3.18Average GPA
53.7%A-range grades
19,727 enrollmentsThrough Summer 2026
PHYS
PHYS 6A
2.74Average GPA
31.7%A-range grades
19,445 enrollmentsThrough Summer 2026
PSTAT
PSTAT 5A
2.85Average GPA
32.7%A-range grades
18,690 enrollmentsThrough Summer 2026
CHEM
CHEM 1CL
3.08Average GPA
32.3%A-range grades
18,433 enrollmentsThrough Winter 2025
MATH
MATH 6A
3.12Average GPA
48.9%A-range grades
18,420 enrollmentsThrough Summer 2026
CHEM
CHEM 109A
2.49Average GPA
20.8%A-range grades
18,320 enrollmentsThrough Spring 2026
MCDB
MCDB 1LL
3.77Average GPA
83.9%A-range grades
18,215 enrollmentsThrough Summer 2026
ECON
ECON 2
2.63Average GPA
20.1%A-range grades
18,007 enrollmentsThrough Spring 2026
MATH
MATH 34B
3.18Average GPA
47.1%A-range grades
17,610 enrollmentsThrough Summer 2026
CHEM
CHEM 109B
2.50Average GPA
20.4%A-range grades
17,265 enrollmentsThrough Summer 2026
PHYS
PHYS 6B
2.89Average GPA
31.7%A-range grades
17,167 enrollmentsThrough Summer 2026
COMM
COMM 1
2.80Average GPA
28.0%A-range grades
17,098 enrollmentsThrough Summer 2026
EEMB
EEMB 2LL
3.87Average GPA
90.2%A-range grades
16,287 enrollmentsThrough Spring 2026
PSY
PSY 102
3.06Average GPA
39.7%A-range grades
15,130 enrollmentsThrough Summer 2026
PHYS
PHYS 6C
3.20Average GPA
45.5%A-range grades
15,026 enrollmentsThrough Summer 2026
ESS
ESS 3
3.00Average GPA
38.1%A-range grades
15,018 enrollmentsThrough Fall 2021
ENGL
ENGL 10
3.39Average GPA
54.2%A-range grades
14,260 enrollmentsThrough Summer 2026
ES
ES 1- 43D
0.00Average GPA
0.0%A-range grades
14,238 enrollmentsThrough Spring 2025
PSTAT
PSTAT 120A
2.76Average GPA
33.1%A-range grades
13,991 enrollmentsThrough Summer 2026
PSY
PSY 105
3.30Average GPA
52.7%A-range grades
13,759 enrollmentsThrough Summer 2026
PHIL
PHIL 4
3.05Average GPA
32.4%A-range grades
13,406 enrollmentsThrough Summer 2026
EARTH
EARTH 7
2.89Average GPA
29.9%A-range grades
13,402 enrollmentsThrough Spring 2026
INT
INT W 1
—Average GPA
—A-range grades
13,317 enrollmentsThrough Fall 2025
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 ↗