The Lagoon course explorerUC Santa Barbara

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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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10,653 courses · Most enrollments first
ME

ME 189A

3.67Average GPA
73.6%A-range grades
910 enrollmentsThrough Fall 2020
ENGL

ENGL 187LL

3.09Average GPA
37.7%A-range grades
909 enrollmentsThrough Fall 2024
EARTH

EARTH 30

2.56Average GPA
13.1%A-range grades
908 enrollmentsThrough Winter 2025
EEMB

EEMB 159

2.87Average GPA
27.0%A-range grades
908 enrollmentsThrough Summer 2026
ESM

ESM 263

3.83Average GPA
87.9%A-range grades
908 enrollmentsThrough Winter 2026
CMPSC

CMPSC 291A

3.85Average GPA
89.3%A-range grades
906 enrollmentsThrough Spring 2026
ECE

ECE 137B

2.81Average GPA
26.8%A-range grades
906 enrollmentsThrough Spring 2026
PHYS

PHYS 102

3.02Average GPA
39.8%A-range grades
906 enrollmentsThrough Winter 2022
AS AMW

AS AMW 1

3.53Average GPA
71.3%A-range grades
905 enrollmentsThrough Summer 2026
HIST

HIST 171D

3.44Average GPA
53.4%A-range grades
904 enrollmentsThrough Spring 2026
SOC

SOC 155W

3.23Average GPA
48.1%A-range grades
904 enrollmentsThrough Winter 2025
PHYS

PHYS 129L

3.12Average GPA
49.1%A-range grades
902 enrollmentsThrough Summer 2026
ED

ED 109M

0.00Average GPA
0.0%A-range grades
901 enrollmentsThrough Summer 2023
ENV S

ENV S 130C

3.39Average GPA
56.9%A-range grades
900 enrollmentsThrough Summer 2026
ENGL

ENGL 133SO

3.25Average GPA
52.2%A-range grades
899 enrollmentsThrough Spring 2025
ENV S

ENV S 30

3.50Average GPA
71.3%A-range grades
899 enrollmentsThrough Fall 2025
AS AM

AS AM 137

3.14Average GPA
38.1%A-range grades
898 enrollmentsThrough Fall 2025
ESM

ESM 401B

3.96Average GPA
97.8%A-range grades
898 enrollmentsThrough Fall 2024
HIST

HIST 49A

3.26Average GPA
51.3%A-range grades
897 enrollmentsThrough Fall 2025
PHYS

PHYS 100A

2.90Average GPA
41.2%A-range grades
897 enrollmentsThrough Summer 2026
PSY

PSY 128

3.29Average GPA
47.0%A-range grades
894 enrollmentsThrough Spring 2017
PHIL

PHIL 145

3.07Average GPA
35.7%A-range grades
893 enrollmentsThrough Summer 2024
PSY

PSY 121

3.31Average GPA
52.6%A-range grades
890 enrollmentsThrough Fall 2022
CLASS

CLASS 55

3.63Average GPA
77.1%A-range grades
889 enrollmentsThrough Spring 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 ↗