Working professionals only. Data engineers, backend & platform devs, ML practitioners, dev advocates, engineering leads, CTOs, founders. Teams of 2 to 4. Proof of professional status may be requested at registration. University students are not eligible this round.
Now accepting sign upsClick-a-Thon by ClickHouse
Click-a-Thon by ClickHouse
24 hours. 30 teams. One real problem worth shipping on the fastest database in the game.
Dates01—02 Aug 2026
LocationBengaluru, India
Format24-hour, in-person
ParticipantsProfessional developers only
Applications close25 June, 2026
Demo dayOpen House Bengaluru · 22 Sep
Trusted by the world's leading companies
Why Click-a-thon?
Build on the fastest
database in the game
ClickHouse runs millisecond queries on petabyte-scale data. It's why the teams building real-time analytics, observability, and AI infrastructure pick it first.
Spend 24 hours building with it next to the people who know it best. Bring an idea. Leave with a prototype, a GitHub repo worth starring, and a sharper edge for whatever you ship next.
How to get to the top 10
Four tracks. One goal: build something that makes real-time data impossible to ignore.
01
Ship something real, not a demo
Judges can smell a slide deck. Build a working prototype on ClickHouse — even a rough one — that solves an actual problem a customer would pay for. Real queries on real data beats polished mockups every time.
02
Lean into speed as the story
ClickHouse's edge is millisecond queries at petabyte scale, so make that the hero of your build. Benchmark it. Show the before/after. A use case that's impossible on other databases is your fastest path to standing out.
03
Build for adoption
Top entries show a clear path from prototype to production. Define the customer, use case, and business impact. Frame your hack around who will use it and how it scales. That moves you from a cool project to the Top 10.
Four broad categories
Problem statements drop at 12:00 PM sharp on Saturday, co-authored with strategic ClickHouse customers. Anonymised datasets and starter repos land in your inbox the 01 Aug 2026. The brief is real. The data is real. The timer is real.
01
Real-time analytics & dashboards
02
Observability & log analytics
03
Agentic AI + analytics pipelines
04
Data Warehousing
Build your solutions with our OSS Stack
The people grading your build
Rubric published in advance.
No surprises.
- Use of ClickHouse & OSS Stack (25%)
- Problem Fit (20%)
- Technical Implementation (20%)
- Innovation (20%)
- Scalability & Impact (10%)
- Presentation (5%)
Your journey
Here’s how itworks
From idea to working prototype: here's what your Click-a-thon journey looks like.
Apply
25 May — 25 June 2026Teams of 2 to 4. Share your background, stack, and what you want to build. Reviewed weekly.
Get confirmed
Early July 202630 teams selected. You'll get a confirmation email with logistics, travel info, and your Slack invite.
Train up
June — July 2026Getting started resources released: documentation, guides, etc. Show up ready to ship, not learn syntax.
Hack weekend
01 — 02 Aug 202624 hours in Bengaluru. Problem statement drops Saturday noon. Top 10 pitch Sunday afternoon. Winners crowned at 4:30 PM.
Open House finals
22 September 2026Top 3 teams take the main stage at Open House Bengaluru. Demo booths, case studies, global coverage.
Win prize. Win the room.
Every build matters: recognized by industry practitioners and the ClickHouse community.
Winner
Worth of prizes · Team Trophy · Main stage keynote at Open House Bengaluru · ClickHouse Cloud Credits · Loads of social media coverage
Runner up
Worth of prizes · Team Trophy · Main stage keynote at Open House Bengaluru · ClickHouse Cloud Credits · Loads of social media coverage
2nd runner up
Worth of prizes · Team Trophy · Main stage keynote at Open House Bengaluru · ClickHouse Cloud Credits · Loads of social media coverage
Special Awards
Additional prizes across special categories (Jury Choice, Audience Choice, Spot Awards) recognizing the best in innovation, creativity, impact, and execution.
The top 30 teams are heading to
Bengaluru.
01 — 02 August.
VENUE ANNOUNCED IN JULY•TRAVEL ON YOU, MEALS ON US
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Start using ClickHouse in seconds
Install ClickHouse for MacOS, Linux, and FreeBSD.
$curl https://clickhouse.com/ | sh
Or install for Windows, Docker or see other install options. Or try without installing in our playground.
Watch this getting started video to learn more about ClickHouse.