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 246
3.67Average GPA
69.2%A-range grades
13 enrollmentsThrough Winter 2015
CHEM
CHEM 259AA
3.91Average GPA
100.0%A-range grades
13 enrollmentsThrough Spring 2025
CHEM
CHEM 254A
3.93Average GPA
100.0%A-range grades
12 enrollmentsThrough Spring 2014
CHEM
CHEM 259MM
4.00Average GPA
100.0%A-range grades
12 enrollmentsThrough Winter 2026
CHEM
CHEM 279SS
4.00Average GPA
100.0%A-range grades
12 enrollmentsThrough Fall 2024
CHEM
CHEM 239YY
3.71Average GPA
81.8%A-range grades
11 enrollmentsThrough Spring 2025
CHEM
CHEM 239RR
4.00Average GPA
100.0%A-range grades
10 enrollmentsThrough Spring 2024
CHEM
CHEM 115B
3.26Average GPA
22.2%A-range grades
9 enrollmentsThrough Winter 2019
CHEM
CHEM 99
4.00Average GPA
100.0%A-range grades
9 enrollmentsThrough Fall 2019
CHEM
CHEM 115C
3.66Average GPA
62.5%A-range grades
8 enrollmentsThrough Spring 2019
CHEM
CHEM 142AH
3.43Average GPA
85.7%A-range grades
7 enrollmentsThrough Fall 2015
CHEM
CHEM 245
4.00Average GPA
100.0%A-range grades
6 enrollmentsThrough Spring 2019
CHEM
CHEM 259EE
4.00Average GPA
100.0%A-range grades
6 enrollmentsThrough Winter 2025
CHEM
CHEM 282B
4.00Average GPA
100.0%A-range grades
6 enrollmentsThrough Winter 2011
CHEM
CHEM 281
3.72Average GPA
60.0%A-range grades
5 enrollmentsThrough Spring 2021
CHEM
CHEM 243
3.85Average GPA
100.0%A-range grades
4 enrollmentsThrough Fall 2019
CHEM
CHEM 264
3.50Average GPA
50.0%A-range grades
4 enrollmentsThrough Spring 2019
CHEM
CHEM 242A
3.50Average GPA
50.0%A-range grades
2 enrollmentsThrough Fall 2019
CHEM
CHEM 242C
2.70Average GPA
0.0%A-range grades
2 enrollmentsThrough Spring 2019
CHEM
CHEM 192
4.00Average GPA
100.0%A-range grades
1 enrollmentsThrough Winter 2019
CHEM
CHEM 242B
3.00Average GPA
0.0%A-range grades
1 enrollmentsThrough Winter 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 ↗