International Prize in Statistics 2027: An $80,000 Biennial Award for a Single Idea That Changed Science — Nominations Close 1 October 2026

International Prize in Statistics 2027: An $80,000 Biennial Award for a Single Idea That Changed Science — Nominations Close 1 October 2026

Most scientific prizes reward a career. The International Prize in Statistics was deliberately built to reward an idea — a single work or a coherent body of work whose consequences ran far beyond the field that produced it. That design choice is why the four prizes awarded so far read almost like a syllabus of twentieth-century applied statistics: the proportional hazards model, the bootstrap, random effects models for longitudinal data, and the Cramér–Rao results. The 2027 cycle is now open, and nominations close on 1 October 2026.

The prize is not run by a single foundation or university. It is stewarded by the International Prize in Statistics Foundation, which is composed of representatives of the five largest statistical bodies in the world: the American Statistical Association, the Institute of Mathematical Statistics, the International Biometric Society, the International Statistical Institute, and the Royal Statistical Society. That joint ownership is unusual, and it matters for anyone thinking about a nomination — the selection committee is looking for work that all five constituencies would recognise as important, not work that is celebrated inside one subfield.

Key Details

What the Prize Actually Recognises

The foundation’s stated criteria are narrower and more specific than the usual “outstanding contributions to the field” language, and reading them carefully is the single most useful thing a prospective nominator can do.

The prize is awarded “for a major achievement developed through a single contribution or multiple contributions over a period of time.” It is meant to recognise “powerful ideas that have led to breakthroughs in statistics and data science and demonstrated impact on applications, methodology, theory, or practice.”

Two phrases carry weight there. The first is powerful ideas — the foundation says explicitly that original ideas are the focus of the award. The second is demonstrated impact. The foundation’s own framing adds that “a corollary practical and positive effect on the world’s population is factored into the selection criteria,” and it names concrete examples: implementing statistical surveys or analyses, or developing groundbreaking software systems of great benefit to humankind.

That last example is worth pausing on. The prize can go to organizations and to software, not only to a theorem or a paper. A nomination built around a widely adopted statistical system, a national survey methodology, or a piece of open-source infrastructure that changed how a discipline works is squarely within the stated scope — but the nomination has to establish the idea behind it, not just the adoption numbers.

There is also an explicit public-communication goal. The foundation states that the ultimate purpose of the prize is to enhance public understanding of the depth and scope of statistics, and that information about the award “will be communicated to the public in a way that will enhance public understanding.” It then adds the line that most directly shapes the paperwork: “Part of this information is captured through the nomination process.” In other words, the nomination packet is not only an evaluation document. It is raw material for how the prize will be explained to the world.

Who Fits, Reading the Record

Four prizes have been awarded to date, and the pattern is instructive:

• 2016 — Sir David Cox, for the 1972 Journal of the Royal Statistical Society, Series B paper introducing the proportional hazards model for survival data.
• 2018 — Bradley Efron, for the bootstrap, developed in 1977, a method for assessing uncertainty in scientific results.
• 2021 — Nan Laird, for random effects modeling of longitudinal data, introduced in 1982 — methods that, in the foundation’s words, “gave researchers the tools they needed to answer important questions in health, medicine, psychology.”
• 2023 — C. R. Rao, for a 1945 paper in the Bulletin of the Calcutta Mathematical Society that demonstrated three fundamental results underpinning modern statistics.
• 2025 — Grace Wahba, for work on smoothing splines, which transformed modern data analysis and machine learning.

Every one of these is anchored to a nameable, datable contribution. None of them is a general career citation. And in each case the contribution escaped statistics: Cox’s model into clinical medicine, Efron’s bootstrap into every empirical science, Laird’s mixed models into public health and psychology, Wahba’s splines into machine learning.

If you are weighing a nomination, the useful test is whether you can finish this sentence in one clause: “Because of X, researchers in field Y can now do Z, which was not previously possible.” If the answer requires three paragraphs of qualification, the nomination will struggle against the field.

Note also the time lag. Cox’s paper was 44 years old at the time of the award; Rao’s was 78. The prize is not a mechanism for recognising recent or promising work. It rewards ideas whose consequences have had decades to become visible. Early-career and mid-career scholars in the study of important problems have other routes; this is not one of them.

Eligibility and the Nomination Requirements

The eligibility rules are short:

• Recipients must be living at the time of selection. This is a hard bar and it has practical implications — a nomination for an ageing scholar carries real timing risk, and the foundation gives no posthumous route.
• The prize may go to individuals, teams, or organizations. Groups of individuals working on similar ideas can be recognised together.
• There is no nationality, institutional affiliation, or membership requirement. Nominees do not need to belong to any of the five sponsoring societies.
• The nomination is made by a third party. The nomination form asks for a description of the relationship between nominator and nominee, which implies a nominator who knows the work well but is not the subject of it.

The nomination packet consists of:

1. Contact information for both the nominee(s) and the nominator.
2. The official nomination form, with everything it requests, including:
   • CV(s) of the nominee(s).
   • Four letters of reference focused primarily on the contribution, its importance, and its impact. The foundation says other material — professional leadership, mentoring, contributions to other areas — is acceptable but “should be brief.”
   • A description of the relationship between nominator and nominee(s).
   • The title and a brief description of the nominated contribution.
   • A description of the importance and impact of the contribution, maximum 1,200 words, written so that a non-specialist can follow it.
   • A draft citation, maximum 150 words.

The form itself is linked from the nominations page as a PDF. Everything is emailed to [email protected] by 1 October 2026. Questions go to the same address.

One provision is easy to miss and genuinely valuable: unsuccessful nominations are carried over for one selection cycle, which is two years. That means a nomination submitted for 2027 is automatically reconsidered for 2029 without resubmission. Nominators are responsible for updating a carried-over nomination if they want to — and the deadline for updates is the same as the nomination deadline. If you nominated someone for the 2025 prize and they were not selected, your nomination is live for 2027, and 1 October 2026 is your chance to refresh it with new evidence.

The selection committee also “reserves the right to contact the nominator and writers of the support letters to seek additional information and insight.” Reference writers should therefore be people who can be reached and who can speak in depth, not distinguished names who agreed to sign a paragraph.

The 1,200 Words That Decide It

The impact statement is the heart of the packet, and its constraints tell you exactly what is wanted. Twelve hundred words is roughly two and a half pages — enough for a clear argument, not enough for a technical review. The instruction that it be “understandable to a nonspecialist” is not a courtesy; it aligns with the prize’s stated purpose of enhancing public understanding, and it is a real filter. A statement that cannot be followed by a well-read scientist outside statistics has failed on the foundation’s own terms.

A structure that respects both the word limit and the criteria:

• Name the idea in the first sentence. Not the person, not the career — the idea. “The proportional hazards model.” “The bootstrap.” One noun phrase a reader can hold onto.
• State the problem it solved and what people did before. The contrast is what makes the achievement legible. If the reader cannot picture the pre-existing difficulty, the solution reads as incremental.
• Trace the escape route. Where did the idea travel? Which fields adopted it, and what did they do with it that they could not do before? This is where citation counts, software adoption, textbook presence, and downstream discoveries belong — as evidence for a claim, not as a list.
• Be concrete about the “positive effect on the world’s population.” Clinical trials that ran, surveys that informed policy, drugs approved, crop yields, machine learning systems in use. The foundation names this explicitly as a factor.
• Close by returning to the idea. Why was it powerful and original, and not merely useful?

The 150-word draft citation is a separate craft problem. Look at how the foundation has phrased past awards — “for work on smoothing splines, which has transformed modern data analysis and machine learning” — and write in that register. Short, plain, one central claim. The committee may rewrite it, but a good draft demonstrates that you understand what the prize is for.

Timeline and What Happens After

• 1 October 2026 — nominations close.
• Late 2026 into 2027 — the seven-member selection committee, currently chaired by Kerrie Mengersen, reviews nominations. Committee members may contact nominators and reference writers.
• Spring 2027 — based on the 2025 cycle, when Grace Wahba’s award was announced in April ahead of an autumn presentation, an announcement in the first half of the year is the reasonable expectation. The foundation has not published a 2027 announcement date.
• 11–15 July 2027 — the 66th ISI World Statistics Congress, at the Mulungushi International Conference Centre in Lusaka, Zambia, where the prize is presented. The foundation notes the award is “supported by ceremonies and intellectual activities that enhance the visibility of the award,” so the laureate should expect a substantive programme rather than a single podium moment.

The Lusaka venue is worth flagging for its own reasons. The World Statistics Congress rotating to Zambia gives the 2027 prize an African stage, and the accompanying visibility programme will be shaped by that setting.

Common Mistakes in Nominations Like This

Nominating a career instead of a contribution. This is the most common structural error against a prize of this design. If the nomination reads as a CV summary with a prize request attached, it is competing in the wrong category.

Assuming the committee already knows. The 1,200-word non-specialist requirement exists precisely because the reviewers span biometrics, official statistics, mathematical statistics, and applied practice. A nomination written for specialists in the nominee’s own subfield forfeits most of its readership.

Thin reference letters. Four letters is a substantial ask, and the foundation specifies they should focus on the contribution, its importance, and its impact. Four letters that each praise the person in general terms are weaker than four letters that each independently establish a different dimension of the idea’s reach. Brief the letter writers on which angle you want each to cover, and confirm they are willing to take a follow-up query from the committee.

Missing the carry-over update window. If you have a nomination carried over from 2025, silence is a decision. Two years of new evidence — new applications, new fields adopting the method, a retrospective in a major journal — can materially strengthen the case, and 1 October 2026 is the only door.

Leaving impact abstract. “Widely used” is not evidence. “Implemented in the standard analysis pipeline of X consortium, cited in Y clinical guidelines, embedded in Z software used by N institutions” is evidence.

Frequently Asked Questions

Is there a formal nomination form, or do I write a free-form letter? There is a form. It is linked from the nominations page as a PDF and it specifies the required fields. Complete it and email it with the supporting materials to [email protected].

Can I nominate myself? The process is built around a third-party nominator — the form asks for a description of the relationship between the nominator and the nominee, and requires four reference letters. Self-nomination is not how the prize is designed to work.

Can a team or an institution win? Yes. The foundation states the prize can be awarded to individuals, teams, or organizations, and specifically mentions groups working on similar ideas. It also notes that “generally, the prize is awarded to individuals,” so a team nomination should make the case for why the contribution is indivisible.

What is the prize worth? The 2025 prize carried an $80,000 award. The foundation has not separately published a figure for the 2027 cycle, so treat $80,000 as the established amount rather than a guaranteed one.

Does the nominee need to be a member of ASA, IMS, IBS, ISI, or RSS? No membership requirement is stated. The five societies steward the prize; they do not restrict it to their members.

Does the work have to be recent? No — and the record suggests the opposite. Awarded contributions have been decades old, because the prize rewards demonstrated impact rather than promise.

What if my nominee is in poor health? The recipient must be living at the time of selection. There is no posthumous provision. Nominators should factor this into timing.

Is the prize awarded every year? No. It is biennial, presented at the ISI World Statistics Congress. Missing the 1 October 2026 deadline means waiting for the 2029 cycle — unless your nomination is carried over.

Official Links and Contacts

• Nominations page (deadline, criteria, packet requirements, form link): https://statprize.org/nominations/
• About the prize (criteria, sponsoring societies, purpose): https://statprize.org/about-the-prize/
• Foundation and selection committee membership: https://statprize.org/organization/
• Previous winners: https://statprize.org/previous-winners/
• Nomination submissions and questions: [email protected]
• 66th ISI World Statistics Congress, Lusaka, 11–15 July 2027: https://www.isi-next.org/conferences/isi-wsc2027/

Next Steps

If you have a candidate in mind, the sequence that fits the remaining time is straightforward. Download the nomination form now and read the fields before you write anything, because the form dictates the shape of the argument. Draft the 150-word citation first — if you cannot compress the contribution into 150 plain words, the 1,200-word statement will not hold together either. Then approach your four reference writers with a specific brief for each, giving them at least six weeks and telling them the committee may follow up. Assemble and send well before 1 October 2026; the submission channel is email, and there is no advantage to testing it on the deadline.

If you are not nominating but want to track the outcome, the announcement should surface in the first half of 2027 across the five sponsoring societies’ channels, ahead of the July presentation in Lusaka.