Matthew C. Perantoni
Judge, Superior Court of California, County of Riverside 2012–
A--
79% — 19 of 24 rulings upheld, per qwen3.8-27b; in the top 18% of 312 graded judges
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.
85cases reviewed on appeal
21%reversed, in whole or part, of 75 merits decisions
Outcomes on appeal
affirmed 56 reversed in part 8 reversed 8 writ denied 5 dismissed 4 modified 3 writ granted 1
Areas
criminal 39 dependency 28 civil 17 probate 1
By year: 2013 18 · 2015 12 · 2023 11 · 2026 9 · 2025 9 · 2024 7 · 2021 5 · 2016 5 · 2014 4 · 2020 3 · 2022 2 ·
Analysis
27reviewed cases analysed
82rulings read
0rulings where the model disagrees with the court
4cases with a verified missed authority
0appellate opinions called questionable
Counts of a model's readings across this judge's reviewed cases, each shown on its case page beside the court's disposition. Not a finding about the judge.