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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.

1,194 matching judge profiles · 25 maximum per page

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

JudgeA–ZAssigned civil casesFiling cohort statusMedian dispositionLeading case mix
Mark Christopher ScarsiCurrent active · service 2020-09-18–present · Judge · U.S. District Court for the Central District of California303Attributed assigned cases; not workload252 active51 terminated · 17%0.9 mo.N=51 · district median 1.5 mo. (49 profiles)
463 Habeas Corpus - Alien Detainee24%446 Civil Rights: Americans with Disabilities - Other7%
Mark Eaton WalkerCurrent active · service 2012-12-07–present · Judge · U.S. District Court for the Northern District of Florida410Attributed assigned cases; not workload340 active70 terminated · 17%0.8 mo.N=70 · district median 0.9 mo. (5 profiles)
442 Civil Rights: Jobs10%Prison Condition7%
Mark Gerald MastroianniCurrent active · service 2014-06-05–present · Judge · U.S. District Court for the District of Massachusetts86Attributed assigned cases; not workload79 active7 terminated · 8%Not publishedSuppressed; N=7
440 Civil Rights: Other13%190 Contract: Other6%
Mark Howard CohenCurrent active · service 2014-11-20–present · Judge · U.S. District Court for the Northern District of Georgia586Attributed assigned cases; not workload568 active18 terminated · 3%1.5 mo.N=18 · district median 1.3 mo. (8 profiles)
442 Civil Rights: Jobs6%190 Contract: Other5%
Mark Raymond HornakCurrent active · service 2011-10-19–present · Judge · U.S. District Court for the Western District of Pennsylvania94Attributed assigned cases; not workload76 active18 terminated · 19%0.8 mo.N=18 · district median 0.6 mo. (10 profiles)
463 Habeas Corpus - Alien Detainee41%820 Copyright14%
Mark Saalfield Norris Sr.Current active · service 2018-11-08–present · Judge · U.S. District Court for the Western District of Tennessee283Attributed assigned cases; not workload273 active10 terminated · 4%2.3 mo.N=10 · district median 1.1 mo. (4 profiles)
463 Habeas Corpus - Alien Detainee36%440 Civil Rights: Other5%
Mark Steven DavisCurrent active · service 2008-06-23–present · Judge · U.S. District Court for the Eastern District of Virginia172Attributed assigned cases; not workload146 active26 terminated · 15%0.4 mo.N=26 · district median 0.6 mo. (12 profiles)
463 Habeas Corpus - Alien Detainee24%190 Contract: Other2%
Mark Timothy PittmanCurrent active · service 2019-08-05–present · Judge · U.S. District Court for the Northern District of Texas619Attributed assigned cases; not workload570 active49 terminated · 8%0.1 mo.N=49 · district median 0.9 mo. (12 profiles)
463 Prisoner Pet/Habeas Corpus: Alien Detainee2%Civil Rights: Other Civil Rights2%
Marsha J. PechmanCurrent senior · service 1999-09-09–present · Judge · U.S. District Court for the Western District of Washington11Attributed assigned cases; not workload10 active1 terminated · 9%Not publishedSuppressed; N=1
463 Habeas Corpus - Alien Detainee18%465 Other Immigration Actions9%
Martha Alicia VázquezCurrent senior · service 1993-10-01–present · Judge · U.S. District Court for the District of New MexicoNo attributed assigned civil cases in this period.This does not imply zero workload.
Martha Maria PacoldCurrent active · service 2019-08-16–present · Judge · U.S. District Court for the Northern District of Illinois278Attributed assigned cases; not workload229 active49 terminated · 18%1.4 mo.N=49 · district median 1.4 mo. (29 profiles)
820 Copyright7%840 Trademark6%
Martin Karl ReidingerCurrent active · service 2007-09-12–present · Judge · U.S. District Court for the Western District of North Carolina242Attributed assigned cases; not workload236 active6 terminated · 2%Not publishedSuppressed; N=6
Habeas Corpus (General)5%Prisoner Petitions: Prison Condition4%
Marvin E. AspenCurrent senior · service 1979-07-24–present · Judge · U.S. District Court for the Northern District of IllinoisNo attributed assigned civil cases in this period.This does not imply zero workload.
Mary Ann Vial LemmonCurrent senior · service 1996-07-25–present · Judge · U.S. District Court for the Eastern District of LouisianaNo attributed assigned civil cases in this period.This does not imply zero workload.
Mary Elizabeth PhillipsCurrent active · service 2012-03-22–present · Judge · U.S. District Court for the Western District of Missouri230Attributed assigned cases; not workload220 active10 terminated · 4%0.7 mo.N=10 · district median 0.4 mo. (3 profiles)
463 Habeas Corpus - Alien Detainee6%380 Personal Property: Other3%
Mary Geiger LewisCurrent active · service 2012-06-20–present · Judge · U.S. District Court for the District of South Carolina407Attributed assigned cases; not workload406 active1 terminated · 0%Not publishedSuppressed; N=1
350 Motor Vehicle9%442 Civil Rights: Jobs7%
Mary Katherine DimkeCurrent active · service 2021-12-21–present · Judge · U.S. District Court for the Eastern District of Washington106Attributed assigned cases; not workload104 active2 terminated · 2%Not publishedSuppressed; N=2
Civil Rights: Other12%Prisoner: Civil Rights8%
Mary Kathleen CostelloCurrent active · service 2024-09-19–present · Judge · U.S. District Court for the Eastern District of Pennsylvania186Attributed assigned cases; not workload179 active7 terminated · 4%Not publishedSuppressed; N=7
463 Habeas Corpus: Alien Detainee17%440 Civil Rights: Other5%
Mary Kay LanthierCurrent active · service 2024-09-12–present · Judge · U.S. District Court for the District of Vermont75Attributed assigned cases; not workload70 active5 terminated · 7%Not publishedSuppressed; N=5
463 Habeas Corpus - Alien Detainee13%440 Civil Rights: Other4%
Mary Kay VyskocilCurrent active · service 2019-12-20–present · Judge · U.S. District Court for the Southern District of New York162Attributed assigned cases; not workload143 active19 terminated · 12%1.1 mo.N=19 · district median 1.0 mo. (27 profiles)
446 Civil Rights: Americans with Disabilities - Other12%463 Habeas Corpus - Alien Detainee12%
Mary Little CooperCurrent senior · service 1992-03-02–present · Judge · U.S. District Court for the District of New JerseyNo attributed assigned civil cases in this period.This does not imply zero workload.
Mary M. LisiCurrent senior · service 1994-05-09–present · Judge · U.S. District Court for the District of Rhode IslandNo attributed assigned civil cases in this period.This does not imply zero workload.
Mary Margaret RowlandCurrent active · service 2019-08-20–present · Judge · U.S. District Court for the Northern District of Illinois3,232Attributed assigned cases; not workload3,162 active70 terminated · 2%4.3 mo.N=70 · district median 1.4 mo. (29 profiles)
365 Personal Inj. Prod. Liability52%367 Personal Injury: Health Care/Pharmaceutical Personal Injury Product Liability37%
Mary Stenson ScrivenCurrent active · service 2008-09-30–present · Judge · U.S. District Court for the Middle District of Florida398Attributed assigned cases; not workload389 active9 terminated · 2%Not publishedSuppressed; N=9
480 Consumer Credit7%440 Civil Rights: Other7%
Mary Susan McElroyCurrent active · service 2019-09-30–present · Judge · U.S. District Court for the District of Rhode Island224Attributed assigned cases; not workload184 active40 terminated · 18%0.9 mo.N=40 · district median 0.3 mo. (3 profiles)
463 Habeas Corpus - Alien Detainee28%440 Civil Rights: Other4%

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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.