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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MCDB courses
MCDB
MCDB 101BH
3.99Average GPA
99.6%A-range grades
244 enrollmentsThrough Winter 2026
MCDB
MCDB 229
3.35Average GPA
46.6%A-range grades
238 enrollmentsThrough Fall 2025
MCDB
MCDB 112H
3.98Average GPA
99.5%A-range grades
222 enrollmentsThrough Winter 2026
MCDB
MCDB 133H
3.97Average GPA
98.1%A-range grades
215 enrollmentsThrough Winter 2026
MCDB
MCDB 218A
3.69Average GPA
72.9%A-range grades
210 enrollmentsThrough Fall 2025
MCDB
MCDB 500
—Average GPA
—A-range grades
204 enrollmentsThrough Fall 2020
MCDB
MCDB 220A
3.73Average GPA
75.7%A-range grades
202 enrollmentsThrough Winter 2020
MCDB
MCDB 221
3.98Average GPA
100.0%A-range grades
201 enrollmentsThrough Fall 2024
MCDB
MCDB 138
3.59Average GPA
69.0%A-range grades
184 enrollmentsThrough Summer 2025
MCDB
MCDB 153H
4.00Average GPA
100.0%A-range grades
182 enrollmentsThrough Spring 2020
MCDB
MCDB 194ZM
3.99Average GPA
99.4%A-range grades
180 enrollmentsThrough Spring 2026
MCDB
MCDB 218B
3.75Average GPA
86.3%A-range grades
175 enrollmentsThrough Winter 2026
MCDB
MCDB 194KF
4.00Average GPA
100.0%A-range grades
172 enrollmentsThrough Winter 2025
MCDB
MCDB 172
3.67Average GPA
81.0%A-range grades
163 enrollmentsThrough Winter 2024
MCDB
MCDB 235
3.92Average GPA
94.4%A-range grades
162 enrollmentsThrough Fall 2019
MCDB
MCDB 1AZ
—Average GPA
—A-range grades
153 enrollmentsThrough Fall 2024
MCDB
MCDB 161L
3.91Average GPA
95.3%A-range grades
149 enrollmentsThrough Summer 2019
MCDB
MCDB 136H
3.73Average GPA
76.6%A-range grades
141 enrollmentsThrough Spring 2025
MCDB
MCDB 194DT
3.93Average GPA
95.7%A-range grades
141 enrollmentsThrough Spring 2021
MCDB
MCDB 99
0.00Average GPA
0.0%A-range grades
127 enrollmentsThrough Winter 2021
MCDB
MCDB 90A
3.95Average GPA
98.3%A-range grades
119 enrollmentsThrough Winter 2016
MCDB
MCDB 194MR
—Average GPA
—A-range grades
115 enrollmentsThrough Winter 2026
MCDB
MCDB 194X
3.96Average GPA
99.1%A-range grades
115 enrollmentsThrough Fall 2018
MCDB
MCDB 108AH
3.94Average GPA
96.1%A-range grades
102 enrollmentsThrough Fall 2024
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 ↗