A judging rubric is the list of criteria, with a weight for each, that every judge scores a project against. At Hackathon Raptors each event publishes its rubric on the event page before registration opens. Judges score every criterion on a five-point scale, independently, and a project's result is the weighted average across the judges who reviewed it.
Below are the rubrics from twelve of our recent online hackathons, what they have in common, how a judge works with one, and a template you can reuse.
Does it work. In all twelve rubrics. Usually 25 to 40 per cent; at a performance event it is measured by machine rather than judged.
The event's own challenge. In ten of twelve, at 25 to 35 per cent: constraint mastery, behavioural equivalence, judging integrity, impact. This is what makes each event's rubric its own.
Innovation. In eight of twelve, usually 10 to 20 per cent. It rewards an approach the judges did not expect.
Code quality. A criterion of its own in half the rubrics, at 15 to 25 per cent, and part of technical execution in most of the rest: readable, idiomatic code a senior reviewer would accept.
Presentation and demo. In five of twelve, and never above 15 per cent. A good demo helps; it does not carry a project.
27 to 30 November 2026
Build an AI agent that does real work on its own and can be trusted to run unattended, then prove it knows when to stop. Six tracks, from inbox and calendar agents to browser and developer-workflow agents, plus a pack of hostile test inputs released at kickoff.
Up to 4 bonus points for guardrails, live monitoring, a kill switch and an audit trail.
Event site18 to 21 December 2026
A constraint programming championship in four disciplines: Sprint (300 lines, standard library only), Precision (with your own tests), Endurance and Freestyle.
30 October to 2 November 2026
A performance-engineering championship: four tracks, each with a dataset and a slow reference implementation to beat on one machine.
26 to 29 September 2026
Build the self-hosted submission and judging platform that would then be used to judge you, from registration through scoring and certificates.
28 to 31 August 2026
Build genuinely useful software using only the language standard library: an empty dependency manifest, verifiable on sight.
31 July to 3 August 2026
Port a real, widely used library into another language and prove the rewrite behaves exactly like the original.
29 May to 1 June 2026
Build detection and filtering tools that make AI-generated noise visible and fixable, across eight tracks from code review to academia.
29 May to 1 June 2026
Each team draws a combination of constraints, line budget, domain and language, and builds a working program inside all of them.
27 to 30 March 2026
Build diagnostic tools that reveal hidden friction in developer workflows: slow CI, flaky tests, stale docs, onboarding bottlenecks.
27 February to 2 March 2026
Build software that improves mental health and wellbeing, across six tracks from pattern finding in personal data to community tools.
27 February to 2 March 2026
Build open-source tools that make the world better, across education, climate, health, civic and developer tools.
30 January to 2 February 2026
Build things that use instability as a mechanic: feedback loops, entropy, adaptive rules, emergent behaviour and collapse.
Four criteria cover most events. Weights sum to 100, and every criterion is scored on the same five-point scale.
Scale. 1: missing or does not work; 2: partly there, major gaps; 3: meets the brief; 4: clearly above the brief; 5: exceptional, a judge would reuse it.
Judge an upcoming Hackathon Raptors event. Each panel is matched to its subject. Write to hello@raptors.dev with a short note on your background.
Write to hello@raptors.devHow judges are selected