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100&Change

John D. and Catherine T. MacArthur Foundation

NontraditionalPrize or challenge

Open competition for a single $100 million grant to fund one proposal that promises real and measurable progress in solving a critical problem of our time; proposals must set out both a problem and its solution, judged as impactful, evidence-based, feasible, durable and just.

Indicative award
up to $100M (total award)Pages state one $100 million grant to a single proposal; the FAQ asks whether the solution will solve a problem in five years or create a pathway to solving it over time.
Timing
Periodic callsNo specific published date recorded. This funder publishes a cycle rather than a date, and this database does not invent one.Third round: competition launched May 2024, proposals due September 2024, award announced winter 2025 (Broad Institute Sentinel). The pages announce no later round; a sign-up for competition announcements is offered.
Who can apply
Community organisation, Mid-career & senior
Eligibility
The FAQ states that proposals from all sectors and anywhere in the world are encouraged; the MacArthur pages give no further eligibility rules, so applicants must check the competition rules published with the next round.
SSWR clusters
Special Interest Groups
Topics
large-scale solutions · evidence-based interventions · global problems · competition · scaling
Apply at
https://www.macfound.org/programs/awards/100change/
This entry
Curated by the working group. Written 2026-09-23. Funder link last confirmed to resolve on 2026-09-25.

Amounts and dates on this page are indicative and are maintained by people rather than scraped. Funders change ceilings, windows and eligibility without notice; confirm all details at the source above before applying.

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