How to promote a hackathon and get sign-ups.
To promote a hackathon, start from the submissions you want and work out backwards how many sign-ups you need. Then take the announcement to the channels where your audience already is, a few weeks ahead. For students that means career services, professors, student associations and LinkedIn, on a calendar that avoids exams and holidays. On MARA a public challenge is visible to the MARA student community, which is growing with partner universities, on top of your own channels.
How many sign-ups do you need?
Start from the submissions you want and work backwards to sign-ups: that number tells you how much promotion you need. The submissions you want are the ones your jury can actually read.
For the share of sign-ups who submit, use the one from your previous edition or, for a first edition, an assumption you then measure. Attendance at an in-person event works the same way: use the share of sign-ups who showed up last time, and accept more sign-ups than you have seats.
Calculator to copy. Fill in the last column. The examples use assumed shares, not data: replace them with yours.
| Line | How to work it out | Example | Your event |
|---|---|---|---|
| A. Submissions you want | What your jury can evaluate | 30 | [ ] |
| B. Share of sign-ups who submit | From your previous edition | 25% (assumption) | [ ]% |
| C. Sign-ups needed | A ÷ B | 30 ÷ 0.25 = 120 | [ ] |
| D. People to reach (optional) | C ÷ share who sign up after an invite | From your own history | [ ] |
| E. In person: share of sign-ups who show up | From your previous edition | 2 in 3 (assumption) | [ ]% |
| F. In person: sign-ups to accept | Seats ÷ E | 60 seats ÷ 2/3 = 90 | [ ] |
Count everything in the same unit: if teams submit, count both submissions and sign-ups in teams. Don't apply share E to line C: share B already starts from all sign-ups, present or not.
Why are sign-ups and submissions two different problems?
Because they depend on different things: sign-ups on promotion, prizes and how interesting the theme is; submissions on support during the event, accessible tools and clear rules. Use these questions before you publish:
Sign-ups
- Does the problem interest the audience you want? In a hiring challenge, is it the actual work of the role?
- Can the prize be understood in one line, and do people who don't win know what they get? Ideas in hackathon prizes.
Submissions
- Who answers questions during the event, and in which shifts?
- Are the rules on AI, existing projects and format written down? See the rules template.
- Do the dates avoid exams, holidays and big industry events?
- Is submitting simple: one place, one format, a deadline at a staffed hour?
Which channels should you use?
The ones where your audience already is: universities and networks carry the message to people you would not reach alone. In practice:
| Channel | Audience | What to ask for |
|---|---|---|
| Career services | Students and recent graduates | A slot in their newsletter and opportunities board |
| Professors | Students in a course | Ten minutes in class to present the problem |
| Technical schools (in Italy, ITS Academies) | Students on applied tech programs | A classroom presentation with the program coordinator |
| Student associations | Active students across faculties | A post to members, in return for visibility or a category prize |
| Graduates and professionals | Posts from the company page, employees and judges | |
| Intranet, newsletter, Teams | Employees | A leadership announcement explaining why, and which hours count as work |
| Industry communities and meetups | Professionals | A talk at a meetup, a post in their channel |
Three rules for the message:
- What people build first, the prize second. Say what participants will build and learn. Keep the sign-up form short.
- One hashtag and small outlets. Niche outlets work better than big media: university newsletters and local trade sites.
- With employees, time. Colleagues worry about falling behind on their day job: leadership must say those hours count.
When should you promote?
Avoid holidays, exam periods and big industry events.
- Exams: check the university calendar. In Italy exam sessions usually fall in January-February, June-July and September.
- Summer: in Italy many companies and universities close in August. No promotion, no deadlines.
- Holidays: Christmas to Epiphany, Easter and national holidays; in Italy also 25 April, 1 May, 2 June, 1 November and 8 December.
- Employees: spring or early fall, away from holidays and product releases.
For Italian students, the weeks from mid-October to the end of November and from mid-March to mid-May, minus Easter and long weekends, are usually the freest.
How do you bring partners in?
With something in return. Offer hesitant partners a jury seat, their logo or a prize category.
| What you offer | What you ask for |
|---|---|
| A seat on the jury | A post or newsletter to their contacts, on set dates |
| A category prize in their name | Your texts and visuals published as sent, with your hashtag |
| Logo on the event page and a mention at the awards | A contact who replies within [days] |
A 6-week promotion plan
This is an example: copy the table and swap in your own timing and names.
| When | What to do | Who |
|---|---|---|
| 6 weeks before | Calculator filled in; page with brief, prize, criteria, dates and FAQ; partners and universities contacted | Organizer |
| 5 weeks before | Sign-ups open; first announcement on every channel; texts, visuals and hashtag sent to partners | Comms |
| 4 weeks before | Class or department presentations; posts from judges; FAQ updated | Comms, jury |
| 3 weeks before | Sign-ups against target; second message on the weakest channels; last call | Organizer, comms |
| 2 weeks before | Sign-ups close; if you are below your minimum, decide whether to postpone; email to sign-ups with dates and materials | Organizer, comms |
| 1 week before | Reminder to sign-ups with times, materials and the team rules | Comms |
| During | Reminders up to the deadline; answers to everyone in the same channel | Comms, mentors |
| After | Results to everyone at the same time; numbers to partners | Comms |
Write the minimum number of sign-ups and the decision date 6 weeks ahead, on the first line of the plan. Close sign-ups 2 weeks before the event, because teams need time to form and materials need to go out. One week is enough only if teams are already formed. For a public online hackathon, also plan a registration-only period before submissions open. Everything else is in the hackathon checklist.
What should you publish for people signing up?
An FAQ page, published before invitations go out. People signing up have specific worries: a missing email, for example, reads as a rejection.
| What they fear | What to publish first | On MARA |
|---|---|---|
| Not being able to join alone | The team rule | MARA does not match people: how teams form is set in the challenge rules, decided by the organizer |
| Results that never come | The results date and where they appear | An announcement in the challenge, each person's status updated and an email notification |
| Opaque judging | Criteria, weights, who judges | Criteria fixed before publishing, the same for all; your people evaluate, MARA gives no scores |
| Hidden costs | Whether it costs anything | Participants never pay |
| Prizes never delivered | What you win and when it arrives | Prize set before publishing and visible from the start |
| Working for free | Who owns the submitted work | Ownership is set in the challenge rules, which participants see before they join; everyone who submits keeps their certificate and portfolio |
| No feedback | What people who don't win get | Verifiable certificate and portfolio for everyone who submits; you can send individual notes |
How do people join a MARA challenge?
- Public challenge. Visible to the MARA student community, which is growing with partner universities, on top of your own channels.
- Private link. You send it to the people you want to involve: email, internal newsletter, intranet. Anyone with the link can join, so don't post it where everyone can see it.
- Reserved for a university. Students sign in with their university email. If you publish for a partner university, the university gives you a code: you use it to publish the challenge for its students.
People take part alone or in teams, as the rules you write set out. Your people evaluate and decide: MARA does not select or rank anyone. To choose a tool, read the comparison of platform, agency and DIY. Participants never pay and there is no per-participant fee. Back to the home page.
Frequently asked questions.
01How early should you start promoting a hackathon?
A few weeks ahead: enough for two rounds of messages and for the lead times of career services and professors. The example plan in this guide starts 6 weeks before. For a public online hackathon, also plan a registration-only period before submissions open.
02How many sign-ups does a hackathon need?
Work it out backwards: the submissions you want divided by the share of sign-ups who submitted at your previous edition. For an in-person event, run the same calculation with the share of sign-ups who showed up last time.
03Where should you promote a hackathon?
Where your audience already is: career services, professors, technical schools and student associations for students; LinkedIn for graduates and professionals; the intranet and newsletters for employees. A partner who gets something in return brings their audience too.
04How do participants get into a MARA challenge?
You can publish the challenge to the MARA student community, which is growing with partner universities, or keep it closed: reserved for a university's students, who sign in with their university email, or for whoever receives the private link. If you publish for a partner university's students, you use the code the university gives you.
05What should the event page say?
The answers people want before signing up: who can join, whether it costs anything, who judges and on what, what the prize is and when it arrives, who owns the work, when results come out and what people who don't win receive.
Your next challenge can start today.
Write your challenge in a few minutes. Drafts are free.
No commitment. You pay only when the challenge is live.