gno.law

Matthew C. Perantoni

Judge · Superior Court of Riverside County · 2013–2026

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.

Cases reviewed on appeal (every role)

  1. Samaduroff v. Bank of America CA4/3 G052135 · 2016-01-12 · civil · affirmed
  2. Wannamaker v. Fire Ins. Exchange CA4/2 E060652 · 2015-11-13 · civil · affirmed
  3. Reed v. Regal Medical Group CA4/2 E059895 · 2015-09-08 · civil · affirmed
  4. Chaudhry v. Cal. Dept. of Corrections CA4/2 E059366 · 2015-07-24 · civil · affirmed
  5. Z v. v. County of Riverside G050922 · 2015-07-16 · civil · affirmed
  6. Hupp v. Freedom Communications CA4/2 E059682M · 2015-07-16 · civil · affirmed
  7. Bridges v. City of Wildomar E059890 · 2015-07-15 · civil · affirmed
  8. McCoy v. Perris Union H.S. Dist. CA4/1 D067421 · 2015-06-08 · civil · affirmed
  9. Sumaya v. Cequent Performance Products CA4/1 D066880 · 2015-05-19 · civil · affirmed
  10. Mabee v. County of Riverside CA4/2 E059496 · 2015-05-14 · civil · affirmed
  11. Terbeek v. Panda Restaurant Group CA4/2 E059775 · 2015-04-22 · civil · affirmed
  12. Perez v. Navman USA CA4/1 D066857 · 2015-04-15 · civil · affirmed
  13. Wakefield v. Carone CA4/2 E059342 · 2015-02-04 · probate · affirmed
  14. Larson v. UHS of Rancho Springs G050081 · 2014-10-03 · civil · affirmed
  15. Hayden v. Wells Fargo Bank CA4/2 E058486 · 2014-09-30 · civil · dismissed
  16. In re K.P. CA4/2 E057591 · 2014-08-20 · dependency · affirmed
  17. In re M.P. CA4/2 E057504 · 2014-01-23 · dependency · affirmed
  18. In re J.O. CA4/2 E057541 · 2013-11-21 · dependency · modified
  19. In re Z.A. CA4/2 E057737 · 2013-10-30 · dependency · reversed in part
  20. Alexander v. Superior Court CA4/2 E059410 · 2013-10-29 · civil · writ granted
  21. In re H.K. CA4/2 E057805 · 2013-10-04 · dependency · dismissed
  22. In re J.P. CA4/2 E057918 · 2013-08-27 · dependency · affirmed
  23. In re K.P. CA4/2 E057921 · 2013-07-01 · dependency · affirmed
  24. In re L.M. CA4/2 E056563 · 2013-06-27 · dependency · affirmed
  25. In re R.M. CA4/2 E057322 · 2013-06-26 · dependency · affirmed