The Lagoon course explorerUC Santa Barbara
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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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CHEM courses
CHEM
CHEM 257
3.90Average GPA
97.7%A-range grades
43 enrollmentsThrough Spring 2015
CHEM
CHEM 110
3.15Average GPA
47.6%A-range grades
42 enrollmentsThrough Winter 2022
CHEM
CHEM 133
3.29Average GPA
57.1%A-range grades
42 enrollmentsThrough Winter 2026
CHEM
CHEM 161
3.16Average GPA
43.9%A-range grades
41 enrollmentsThrough Spring 2026
CHEM
CHEM 271
3.68Average GPA
75.0%A-range grades
40 enrollmentsThrough Winter 2021
CHEM
CHEM 259
3.90Average GPA
97.4%A-range grades
39 enrollmentsThrough Winter 2024
CHEM
CHEM 282A
3.96Average GPA
100.0%A-range grades
33 enrollmentsThrough Spring 2025
CHEM
CHEM 218
3.49Average GPA
59.4%A-range grades
32 enrollmentsThrough Winter 2021
CHEM
CHEM 154A
3.44Average GPA
67.7%A-range grades
31 enrollmentsThrough Winter 2018
CHEM
CHEM 181
3.11Average GPA
32.1%A-range grades
28 enrollmentsThrough Spring 2025
CHEM
CHEM 276
3.83Average GPA
88.5%A-range grades
26 enrollmentsThrough Spring 2021
CHEM
CHEM 286
3.69Average GPA
76.0%A-range grades
25 enrollmentsThrough Winter 2025
CHEM
CHEM 239AA
3.77Average GPA
85.7%A-range grades
21 enrollmentsThrough Winter 2024
CHEM
CHEM 217A
3.83Average GPA
85.0%A-range grades
20 enrollmentsThrough Fall 2019
CHEM
CHEM 114A
3.58Average GPA
57.9%A-range grades
19 enrollmentsThrough Winter 2026
CHEM
CHEM 222C
3.70Average GPA
68.4%A-range grades
19 enrollmentsThrough Spring 2020
CHEM
CHEM 277
3.26Average GPA
57.9%A-range grades
19 enrollmentsThrough Winter 2022
CHEM
CHEM 285
3.86Average GPA
84.2%A-range grades
19 enrollmentsThrough Fall 2015
CHEM
CHEM 262A
3.48Average GPA
50.0%A-range grades
18 enrollmentsThrough Fall 2021
CHEM
CHEM 148
3.58Average GPA
58.8%A-range grades
17 enrollmentsThrough Spring 2022
CHEM
CHEM 234
3.85Average GPA
86.7%A-range grades
15 enrollmentsThrough Fall 2024
CHEM
CHEM 226
3.86Average GPA
85.7%A-range grades
14 enrollmentsThrough Fall 2019
CHEM
CHEM 274
3.79Average GPA
78.6%A-range grades
14 enrollmentsThrough Spring 2023
CHEM
CHEM 94
—Average GPA
—A-range grades
14 enrollmentsThrough Spring 2026
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 ↗