CHEM · UC Santa BarbaraHistorical grades
CHEM 142B
A clearer picture of the classes ahead.
18 published recordsWinter 2010 — Winter 2026
Look a little closer
All available historyThe grade picture.
2.74Average GPA weighted · out of 4.00
28.5%A-range grades A+, A, and A−
12.1%D / F grades D+, D, D−, and F
961Letter grades 18 published records
Grade distribution
All instructors · All quartersPlus and minus grades are grouped together. Counts reflect grades before optional grading conversions in the original source.
Quarter by quarter
17 quarters
| Quarter | Average GPA | A range | D / F | Letter grades |
|---|---|---|---|---|
| Winter 2026 | 2.84 | 33.9% | 7.1% | 56 |
| Winter 2025 | 2.65 | 32.0% | 16.0% | 50 |
| Winter 2024 | 2.57 | 28.8% | 21.2% | 52 |
| Winter 2023 | 2.45 | 30.0% | 30.0% | 50 |
| Winter 2022 | 2.86 | 28.1% | 6.3% | 32 |
| Winter 2021 | 2.54 | 28.9% | 20.0% | 45 |
| Winter 2020 | 3.49 | 65.7% | 0.0% | 35 |
| Winter 2019 | 3.04 | 39.6% | 8.3% | 48 |
| Winter 2018 | 3.09 | 52.1% | 8.3% | 48 |
| Winter 2017 | 2.53 | 21.9% | 9.4% | 32 |
| Winter 2016 | 2.78 | 24.5% | 8.5% | 94 |
| Winter 2015 | 2.95 | 24.7% | 2.7% | 73 |
| Winter 2014 | 3.10 | 33.7% | 0.0% | 86 |
| Winter 2013 | 2.19 | 13.8% | 27.6% | 58 |
| Winter 2012 | 2.66 | 9.9% | 4.2% | 71 |
| Winter 2011 | 2.65 | 25.3% | 15.2% | 79 |
| Winter 2010 | 2.12 | 15.4% | 28.8% | 52 |
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About the numbers
Historical grade data from the Daily Nexus, obtained from UCSB’s Registrar through public records requests. Available records extend through Winter 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 ↗