Definition
A third person called in to make a final, binding decision when two or more arbitrators are deadlocked and cannot agree. The umpire's authority arises specifically from the failure of the arbitrators to reach a decision; the umpire does not act concurrently with the arbitrators but steps in only when arbitration has reached an impasse. The umpire's award, rendered under these circumstances, carries the same binding force as an arbitral award.
Common Language
Modern common usage (Wiktionary): To act as an umpire in a game; to decide as an umpire.
Historical common usage (Webster's 1913): A person to whose sole decision a controversy or question between parties is referred; especially, one chosen to see that the rules of a game, as cricket, baseball, or the like, are strictly observed. Also: a third person who decides a controversy submitted to arbitrators in case of their disagreement.
The gap matters for researchers. In ordinary usage, an umpire presides over a proceeding or game from the outset, exercising continuous authority. In legal usage, the umpire's role is entirely contingent — authority vests only upon arbitrator deadlock, not before. A sports umpire who enters the field at the first pitch is doing something structurally different from a legal umpire who has no jurisdiction unless and until the primary decision-makers fail.
Common Confusion
Umpire is frequently treated as interchangeable with arbitrator in casual or historical usage. The distinction is functional and sequential: arbitrators are the primary decision-makers, appointed by or on behalf of the parties; the umpire is a secondary mechanism triggered only by their disagreement. Bouvier's states the point cleanly — the jurisdiction of the umpire and arbitrators cannot be concurrent. If arbitrators produce an award, that award controls; if they cannot, the umpire's award controls. Researchers reading older contracts, submission agreements, or awards should watch for this sequence carefully. An umpire's signature on the arbitrators' award does not make it the umpire's award, and vice versa — the label follows who actually decided, not who signed.
Why It Matters in Research
The umpire as a legal mechanism appears most prominently in two contexts: general commercial arbitration under older submission agreements, and specialized industry arbitration — particularly maritime, insurance, and reinsurance disputes — where two-arbitrator panels with umpire provisions remain common even today.
In historical sources, the submission agreement itself controls whether an umpire is contemplated and how one is appointed. Early agreements often named the umpire in the submission; later practice more commonly authorized the arbitrators themselves to select the umpire if needed. Researchers examining pre-twentieth-century commercial disputes should look to the submission document to determine whether umpire authority was properly triggered — a frequent point of challenge to umpire awards.
The term also surfaces in labor arbitration and in some statutory schemes. Researchers moving between common-law arbitration materials and statutory frameworks (including the Federal Arbitration Act and its predecessors) should note that modern statutes may use different vocabulary — "neutral arbitrator," "third arbitrator," or "tiebreaker" — to describe what is functionally the same role. The umpire label itself is older; its functional successor in tripartite arbitration panels is often called the neutral arbitrator rather than umpire, though the mechanics are similar.
In insurance and reinsurance, the term umpire persists in standard contract language to this day. Researchers reading arbitration clauses in reinsurance agreements will encounter umpire provisions routinely. In those contexts, each party typically appoints one party-arbitrator, and the two party-arbitrators then select an umpire. This is structurally the same as the classical legal definition, though the vocabulary of "party-arbitrators" selecting an umpire is a more modern formulation.
Historical Dictionary Support
The historical sources agree on the core definition with unusual consistency: the umpire is the person to whom a matter is referred when arbitrators disagree, and that referral is to the umpire's sole judgment. Burrill, Black's (both editions), Anderson, and Bouvier all state this without meaningful variation.
Bouvier adds the most substantively useful doctrinal point: the jurisdictions of umpire and arbitrators are mutually exclusive, not concurrent. This has practical significance for evaluating the validity of awards and was a live issue in nineteenth-century cases. Anderson's notes the Latin roots — imperator or impar — as alternative derivations, with Burrill favoring impar (meaning uneven or odd, suggesting the tie-breaking function). The etymology is genuinely instructive here, not merely decorative: the concept of an odd, unpaired decision-maker who breaks deadlock is embedded in the word itself.
What the historical dictionaries do not address is the modern transformation of arbitration practice. The umpire mechanism was designed for a two-arbitrator system; modern tripartite panels with a neutral third arbitrator have largely absorbed the function in commercial contexts. Historical dictionary entries cannot account for how statutory arbitration schemes have reshaped the role, and researchers should not assume that historical definitions map cleanly onto modern practice without checking the applicable procedural framework.
Jurisdictional Note
In the United States, the Federal Arbitration Act and most state arbitration statutes do not use the term umpire, preferring neutral arbitrator or similar language. The term remains in active use in maritime and reinsurance contracts governed by industry-standard forms. English arbitration practice, which shaped the historical American authorities, used umpire terminology extensively; researchers working with English sources or English-law agreements will encounter it frequently.