Matthew Perantoni
Judge, Superior Court of California, County of Riverside 2012–
F
provisional — 44% — 4 of 9 rulings upheld, per qwen3.8-27b; would rank in the top 89% of 312 graded judges, but ten rulings are needed for a standing letter — 9 so far
On the assumption that the model is right — qwen3.8-27b reads the court's own disposition right 70% of the time, graded on a curve: A is the top fifth of the judges graded under this model, F the bottom fifth; ++ / + / − / −− within the band. How the grade is made.
10cases reviewed on appeal
60%reversed, in whole or part, of 10 merits decisions
Outcomes on appeal
reversed 4 affirmed 4 reversed in part 2
Areas
criminal 5 dependency 3 civil 2
By year: 2025 2 · 2021 2 · 2015 2 · 2026 1 · 2023 1 · 2022 1 · 2013 1 ·
Analysis
6 of this judge's reviewed cases have an analysis; counts are shown from 10.