FRCP Rule 50: Judgment as a Matter of Law in Jury Trials

Federal Rule of Civil Procedure 50 allows a federal court in a jury trial to enter judgment as a matter of law for one side when the evidence is so one-sided that no reasonable jury could find for the other. It works in two stages: a motion during trial under Rule 50(a), before the case reaches the jury, and a renewed motion under Rule 50(b) after the verdict. The two stages are linked. If you skip the first, you lose the second, and you lose your ability to challenge the sufficiency of the evidence on appeal.¹

The Standard the Court Applies

Every Rule 50 motion turns on one question: has the opposing side put forward enough evidence that a reasonable jury could find in its favor? The court views all the evidence in the light most favorable to the non-moving party and draws every reasonable inference in that party’s direction. It does not weigh conflicting testimony, judge credibility, or substitute its own reading of the facts for the jury’s. Those jobs belong to the jury alone.¹

Judgment as a matter of law is granted only when the evidence so overwhelmingly favors the moving party that no reasonable person could reach a different conclusion. The bar is high by design. The rule is a safety valve for cases where one side has no legally sufficient basis for its position under the controlling law, not a mechanism for second-guessing juries.

Moving During Trial Under Rule 50(a)

A party can move for judgment as a matter of law at any point during a jury trial, but only after the opposing party has been fully heard on the issue in question. Defendants most commonly move at the close of the plaintiff’s case, arguing that even taking the plaintiff’s evidence at face value, no reasonable jury could find for the plaintiff. A plaintiff can also move under Rule 50(a), and either side can renew the motion at the close of all the evidence.¹

The motion must specify the judgment sought and identify the law and facts that entitle the moving party to that judgment. This is not a formality. A vague or conclusory motion that fails to identify the precise grounds can forfeit the right to raise those arguments in a renewed post-verdict motion or on appeal.¹

When the court denies a Rule 50(a) motion, the case goes to the jury. But the denial is not a final ruling. The rule treats it as a submission of the case to the jury subject to the court’s later deciding the legal questions raised by the motion. The court has reserved the right to revisit its decision after the verdict.¹

Why the Rule 50(a) Motion Is a Prerequisite

This is where litigants most often lose on Rule 50. Filing a Rule 50(a) motion before the case goes to the jury is a prerequisite for filing a Rule 50(b) motion after an adverse verdict, and for challenging the sufficiency of the evidence on appeal. Skip this step and the forfeiture is nearly absolute. Appellate courts recognize only the narrowest exception, for plain error apparent on the face of the record that would produce a manifest miscarriage of justice.²

The preservation requirement reaches beyond a bare “the evidence was insufficient” argument. Courts have applied it to any claim of error that turns on alleged evidentiary shortcomings, including challenges to jury instructions related to affirmative defenses and to the failure to establish elements of a claim. The line between a “sufficiency” issue that needs a Rule 50 motion and a “pure legal” issue that does not is often hard to draw in advance. The safe course is to include in the Rule 50(a) motion every factual and legal argument you might want to raise later.

Renewing the Motion After the Verdict Under Rule 50(b)

After the jury returns a verdict, a party that previously moved under Rule 50(a) can file a renewed motion for judgment as a matter of law under Rule 50(b). The renewed motion must be filed no later than 28 days after the entry of judgment. If the jury was discharged without returning a verdict on a particular issue, the 28-day clock runs from the date of discharge.¹

The renewed motion can also include a request for a new trial under Rule 59, either as an alternative or as a joint request. The two remedies serve different purposes. Rule 50(b) asks the court to enter judgment for the movant outright. A new trial motion asks the court to wipe the slate clean and try the case again.

The court’s authority on a renewed motion is limited to the grounds raised in the original Rule 50(a) motion. You cannot use Rule 50(b) to introduce new theories or challenge evidence on grounds you did not flag before the jury deliberated. That limitation is the direct consequence of the specificity requirement, and it is the reason experienced trial lawyers treat the Rule 50(a) motion as the most important procedural step in the entire trial.

Conditional Rulings and What Happens on Appeal

When the court grants a renewed motion under Rule 50(b), it must also conditionally rule on any pending motion for a new trial. The court decides whether a new trial should be granted if the judgment is later reversed on appeal, and it must state its reasons. This gives the case a ready-made fallback position if the appellate court disagrees with the judgment as a matter of law. The conditional ruling does not affect the finality of the judgment for appeal purposes.¹

Rule 50(e) governs the situation where the trial court denies the motion and the case goes up on appeal. As the appellee, the party that won at trial can argue that even if the appellate court finds the trial court erred in denying the Rule 50 motion, the appellee is still entitled to a new trial rather than outright reversal. If the appellate court reverses the judgment, it has three options: order a new trial itself, direct the trial court to decide whether a new trial should be granted, or direct the entry of judgment.¹

Standard of Review on Appeal

Appellate courts review the grant or denial of a Rule 50 motion de novo, applying the same standard the trial court used. The court views the evidence in the light most favorable to the non-moving party, draws all reasonable inferences in that party’s favor, and asks whether a reasonable jury had a legally sufficient evidentiary basis for its verdict. The appellate court does not weigh evidence or assess credibility.²

One subtlety: the appellate court reviews all of the evidence in the record, not only the evidence favorable to the non-moving party. But it must disregard evidence favorable to the moving party that the jury was not required to believe. The full picture is on the table, and the jury’s verdict still gets the benefit of the doubt.

The Seventh Amendment Foundation

The Seventh Amendment preserves the right to a jury trial in federal civil cases and provides that no fact tried by a jury shall be otherwise re-examined in any court of the United States than according to the rules of the common law. A post-verdict judgment overturning a jury’s findings looks, at first, like it might violate that provision. The Supreme Court resolved the tension by treating the Rule 50(a) motion as a reservation of the legal question. When a trial court denies a Rule 50(a) motion and submits the case to the jury, it effectively reserves the right to revisit the legal sufficiency of the evidence after the verdict. The Rule 50(b) ruling is then a delayed decision on a question already before the court, not a prohibited re-examination of the facts the jury decided.³

This is the deeper reason why the Rule 50(a) motion is an absolute prerequisite. Without a pretrial motion creating a reserved question, the court has no constitutional authority to set aside the jury’s findings after the fact. The procedural requirement is what makes the entire post-verdict mechanism constitutional.

Rule 50 Applies Only to Jury Trials

Rule 50 has no role in a bench trial. When a case is tried to a judge, the equivalent mechanism is Rule 52(c), which allows the court to enter judgment on partial findings once a party has been fully heard on an issue. The critical difference is that in a bench trial, the judge is the factfinder and can weigh evidence and assess credibility. A Rule 52(c) judgment must also be supported by findings of fact and conclusions of law, which Rule 50 does not require.⁴

1
Legal Information Institute. Federal Rules of Civil Procedure – Rule 50
2
U.S. Equal Employment Opportunity Commission. Regional Attorneys’ Manual Part 3, Section III
3
Legal Information Institute. U.S. Constitution Annotated – Review of Evidentiary Record
4
Legal Information Institute. Federal Rules of Civil Procedure – Rule 52