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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MCDB courses
MCDB
MCDB 1A
2.53Average GPA
20.9%A-range grades
61,653 enrollmentsThrough Summer 2026
MCDB
MCDB 1B
2.58Average GPA
21.7%A-range grades
38,748 enrollmentsThrough Summer 2026
MCDB
MCDB 1LL
3.77Average GPA
83.9%A-range grades
18,215 enrollmentsThrough Summer 2026
MCDB
MCDB 1AL
2.85Average GPA
24.4%A-range grades
12,509 enrollmentsThrough Fall 2018
MCDB
MCDB 101A
2.87Average GPA
34.0%A-range grades
10,787 enrollmentsThrough Summer 2026
MCDB
MCDB 101B
2.95Average GPA
35.6%A-range grades
8,196 enrollmentsThrough Summer 2026
MCDB
MCDB 1BL
3.03Average GPA
29.4%A-range grades
6,242 enrollmentsThrough Winter 2019
MCDB
MCDB 111
2.77Average GPA
29.7%A-range grades
5,729 enrollmentsThrough Spring 2026
MCDB
MCDB 110
2.91Average GPA
35.0%A-range grades
4,682 enrollmentsThrough Summer 2026
MCDB
MCDB 108A
2.82Average GPA
25.0%A-range grades
4,673 enrollmentsThrough Summer 2026
MCDB
MCDB 263
0.00Average GPA
0.0%A-range grades
3,871 enrollmentsThrough Spring 2026
MCDB
MCDB 260
3.98Average GPA
99.2%A-range grades
3,792 enrollmentsThrough Spring 2026
MCDB
MCDB 108B
2.92Average GPA
29.4%A-range grades
3,782 enrollmentsThrough Summer 2026
MCDB
MCDB 151
3.05Average GPA
38.4%A-range grades
3,685 enrollmentsThrough Fall 2025
MCDB
MCDB 6
2.79Average GPA
24.7%A-range grades
3,208 enrollmentsThrough Summer 2026
MCDB
MCDB 103
2.82Average GPA
27.2%A-range grades
2,927 enrollmentsThrough Fall 2025
MCDB
MCDB 262
0.00Average GPA
0.0%A-range grades
2,874 enrollmentsThrough Spring 2026
MCDB
MCDB 135
3.45Average GPA
61.0%A-range grades
2,818 enrollmentsThrough Spring 2026
MCDB
MCDB 153
3.11Average GPA
40.0%A-range grades
2,723 enrollmentsThrough Spring 2026
MCDB
MCDB 131
2.78Average GPA
27.0%A-range grades
2,679 enrollmentsThrough Fall 2025
MCDB
MCDB 112
3.29Average GPA
47.9%A-range grades
2,641 enrollmentsThrough Winter 2026
MCDB
MCDB 108C
3.22Average GPA
44.7%A-range grades
2,524 enrollmentsThrough Spring 2026
MCDB
MCDB 187
—Average GPA
—A-range grades
2,076 enrollmentsThrough Spring 2026
MCDB
MCDB 11
—Average GPA
—A-range grades
2,058 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 ↗