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Federal judge analytics

Compare federal district judges

Filter and sort public federal civil docket patterns across 1,201 matched judge profiles in 91 U.S. district courts.

No composite score. Every ranking uses the metric and filing window you select, with sample size and district context shown.

Federal case data current through June 30, 2026 · Sources vary by metric.

1,201Attached judge profiles
91U.S. district courts
495Publishable 1 year medians
4Filing windows

Federal civil dockets

Explore judge-level patterns

Every result links to the judge profile and its full analytics.

26 matching judge profiles · 5 maximum per page

Metrics describe public docket cohorts—not judicial quality, outcomes, or current workload.

JudgeA–ZAssigned civil casesFiling cohort statusMedian dispositionLeading case mix
Dominic William LanzaCurrent active · service 2018-09-10–present · Judge · U.S. District Court for the District of Arizona534Attributed assigned cases; not workload494 active40 terminated · 7%0.3 mo.N=40 · district median 0.4 mo. (13 profiles)
463 Prisoner: Alien Detainee - Habeas Corpus40%Civil Rights: Other2%
Douglas Leroy RayesCurrent senior · service 2014-05-28–present · Judge · U.S. District Court for the District of Arizona29Attributed assigned cases; not workload26 active3 terminated · 10%Not publishedSuppressed; N=3
140 Contract: Negotiable Instrument3%850 Other Statutes: Securities/Commodities3%
Frank R. ZapataCurrent senior · service 1996-08-01–present · Judge · U.S. District Court for the District of ArizonaNo attributed assigned civil cases in this period.This does not imply zero workload.
Frederick J. MartoneCurrent senior · service 2001-12-21–present · Judge · U.S. District Court for the District of ArizonaNo attributed assigned civil cases in this period.This does not imply zero workload.
G. Murray SnowCurrent senior · service 2008-07-23–present · Judge · U.S. District Court for the District of Arizona122Attributed assigned cases; not workload119 active3 terminated · 2%Not publishedSuppressed; N=3
463 Prisoner: Alien Detainee - Habeas Corpus6%710 Labor: Fair Standards2%

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Methodology and limits

Attribution. Profiles are matched by federal identifiers or a high-confidence exact name, court, and service overlap. Assigned and referred matters are separated; this explorer shows assigned cases.

Filing cohort. Active and terminated counts describe cases filed inside the selected window as of its end. They are not a clearance rate or a measure of current workload.

Disposition cohort. Median time uses terminated cases from the same attributed assigned filing cohort shown in the selected window. It is withheld below 10 qualifying cases and excludes land condemnation, prisoner petitions, deportation reviews, recovery of overpayments, and enforcement of judgments.

No outcome claims. These data do not measure wins, losses, merits, judicial quality, or attorney success. Use the linked judge profiles and source records to verify legally significant information.