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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CMPSC courses
CMPSC
CMPSC 90DA
3.66Average GPA
84.6%A-range grades
149 enrollmentsThrough Summer 2021
CMPSC
CMPSC 181B
3.08Average GPA
41.5%A-range grades
147 enrollmentsThrough Winter 2017
CMPSC
CMPSC 235
3.76Average GPA
81.5%A-range grades
146 enrollmentsThrough Fall 2025
CMPSC
CMPSC 274
3.80Average GPA
82.6%A-range grades
144 enrollmentsThrough Spring 2026
CMPSC
CMPSC 292C
3.92Average GPA
94.4%A-range grades
144 enrollmentsThrough Spring 2026
CMPSC
CMPSC 276
3.76Average GPA
80.1%A-range grades
141 enrollmentsThrough Fall 2018
CMPSC
CMPSC 290N
3.83Average GPA
89.9%A-range grades
138 enrollmentsThrough Winter 2015
CMPSC
CMPSC 273
3.80Average GPA
82.8%A-range grades
134 enrollmentsThrough Spring 2019
CMPSC
CMPSC 293G
3.90Average GPA
93.8%A-range grades
130 enrollmentsThrough Winter 2026
CMPSC
CMPSC 225
3.76Average GPA
81.6%A-range grades
125 enrollmentsThrough Winter 2025
CMPSC
CMPSC 280
3.80Average GPA
85.0%A-range grades
120 enrollmentsThrough Fall 2024
CMPSC
CMPSC 260
3.88Average GPA
90.8%A-range grades
119 enrollmentsThrough Winter 2024
CMPSC
CMPSC 290A
3.74Average GPA
81.3%A-range grades
112 enrollmentsThrough Fall 2015
CMPSC
CMPSC 293N
3.95Average GPA
100.0%A-range grades
112 enrollmentsThrough Spring 2025
CMPSC
CMPSC 292A
3.65Average GPA
79.3%A-range grades
111 enrollmentsThrough Fall 2023
CMPSC
CMPSC 290C
3.91Average GPA
95.4%A-range grades
109 enrollmentsThrough Winter 2016
CMPSC
CMPSC 132
3.39Average GPA
82.5%A-range grades
103 enrollmentsThrough Fall 2025
CMPSC
CMPSC 290F
3.95Average GPA
100.0%A-range grades
96 enrollmentsThrough Winter 2016
CMPSC
CMPSC 594
4.00Average GPA
100.0%A-range grades
96 enrollmentsThrough Winter 2019
CMPSC
CMPSC 230
3.71Average GPA
78.9%A-range grades
90 enrollmentsThrough Spring 2025
CMPSC
CMPSC 267
3.66Average GPA
73.8%A-range grades
84 enrollmentsThrough Winter 2025
CMPSC
CMPSC 153A
3.28Average GPA
52.5%A-range grades
80 enrollmentsThrough Fall 2025
CMPSC
CMPSC 190DE
3.86Average GPA
85.0%A-range grades
80 enrollmentsThrough Winter 2022
CMPSC
CMPSC 209
3.63Average GPA
69.2%A-range grades
78 enrollmentsThrough Winter 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 ↗