gno.law

John W. Vineyard

Judge · Superior Court of Riverside County · 2013–2026

Presiding Justice, Superior Court of California, County of Riverside 2019–2020 · Judge, Superior Court of California, County of Riverside 2011–2019

F++
50% — 14 of 28 rulings upheld, per qwen3.8-27b; in the top 83% 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.

49cases reviewed on appeal
34%reversed, in whole or part, of 47 merits decisions

Outcomes on appeal

affirmed 30 reversed 12 reversed in part 4 writ granted 1 writ denied 1 modified 1

Areas

civil 41 family 5 criminal 2 delinquency 1

By year: 2014 11 · 2023 9 · 2016 9 · 2018 5 · 2017 3 · 2015 3 · 2026 2 · 2019 2 · 2025 1 · 2024 1 · 2022 1 · 2021 1 · 2013 1 ·

Analysis

31reviewed cases analysed
97rulings read
1rulings 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

  1. Marriage of Betancourt CA4/1 D085161 · 2025-10-23 · family · affirmed
  2. Marriage of Bergman CA4/1 D083079 · 2024-03-25 · family · affirmed
  3. Marriage of Cerny CA4/1 D082233 · 2023-08-21 · family · affirmed
  4. Chavez v. Golden Auto Group CA4/2 E078712 · 2023-08-01 · civil · affirmed
  5. Citrus El Dorado v. Stearns Bank CA4/2 E077496 · 2023-07-03 · civil · affirmed
  6. GRFCO, Inc. v. Super. Ct. E076823 · 2023-04-03 · delinquency · affirmed
  7. EZ Roofing v. JSAMJ CA4/2 E077877 · 2023-03-10 · civil · affirmed
  8. Davis v. Porsche Cars of North America CA4/2 E077395 · 2022-11-10 · civil · affirmed
  9. Carachure v. Scott E074226 · 2021-10-07 · civil · affirmed
  10. Citrus El Dorado v. Chicago Title Co. E067938 · 2019-03-05 · civil · affirmed
  11. Hayes v. Temecula Valley Unified Sch. Dist. D072998 · 2018-03-23 · civil · affirmed
  12. Grotheer v. Escape Adventures E063449 · 2017-08-31 · civil · affirmed
  13. Swigart v. Bruno D071072 · 2017-07-17 · civil · affirmed
  14. Bel Vino, LLC v. Stuart CA4/1 D069902 · 2016-09-26 · civil · affirmed
  15. Laborers International Union etc. v. County of Riverside CA4/2 E063886 · 2016-09-08 · civil · affirmed
  16. Zawtocki v. Black Angus Steakhouses CA4/2 E062969 · 2016-08-11 · civil · affirmed
  17. Silva v. Siciliano CA4/2 E063754 · 2016-06-22 · civil · affirmed
  18. Ronald W. Komers Trust v. County of Riverside CA4/2 E063550 · 2016-05-16 · civil · affirmed
  19. Bodnar v. County of Riverside CA4/2 E063288 · 2016-05-13 · civil · affirmed
  20. Ammari v. Union Pacific Railroad Co. CA4/3 G052290 · 2016-04-28 · civil · affirmed
  21. National City Mortgage v. Dorrin CA4/1 D066975 · 2015-09-28 · civil · affirmed
  22. Toprakjian v. County of Riverside CA4/2 E059952 · 2015-08-13 · civil · affirmed
  23. Sohmer v. JP Morgan Chase Bank CA4/2 E056316 · 2014-12-22 · civil · affirmed
  24. Prado v. County of Riverside CA4/2 E058796 · 2014-11-17 · civil · affirmed
  25. Shalikar v. Shalikar CA4/2 E056412 · 2014-11-13 · civil · affirmed