The D8A weekly data challenge and leaderboard
Every week, a fresh six-question data challenge. Play in two minutes, climb the leaderboard, and turn what you know into something you can show. Here's how it works.
Most people learning data have no idea whether they're actually getting better. You finish a tutorial, you feel okay, and then nothing tells you where you stand. The D8A weekly challenge fixes that: a short, ranked quiz every week, a public leaderboard, and a simple way to turn quiet progress into something you can point to.
A fresh challenge every week
Every week we publish a new ranked challenge: six questions spanning SQL, statistics, and the kind of data reasoning that actually comes up on the job. It takes about two minutes to play, and you don't need an account to start.
Your score and your completion time are both recorded, so the board rewards getting it right and getting it right quickly. When the week ends, the challenge resets and a new one goes live.
Open this week's challenge
Head to the challenge page and start. Six questions, no setup, no account required to play.
Answer fast and accurately
Your rank is based on score first, then completion time as the tiebreaker. Speed only matters once you're correct.
Land on the leaderboard
Sign in with a free account to lock in your spot, carry your points into the monthly season, and track your streak week over week.
You can play this week's challenge cold, without signing up. A free account is what lets you save your rank, join the monthly season, and tie your results back to your portfolio.
Two leaderboards, two kinds of proof
Learning data is two things at once: knowing the concepts and doing the work. So there are two boards, one for each.
What you know, right now
Ranks players on this week's quiz by score, with completion time as the tiebreaker. It resets every week, so a strong week is always within reach, no matter when you started.
What you've built
Ranks members by the real projects they've validated and shipped. This is the slower, deeper game: every project you finish moves you up and adds to a portfolio recruiters can open.
The challenge board is the quick, weekly hit. The portfolio board is the long game. Together they cover both halves of getting job-ready: the knowledge check and the body of work.
The monthly season
Single weeks are fun, but consistency is what actually builds skill. That's why every weekly challenge rolls up into a monthly season: your points across all of that month's quizzes are totaled into one ranking.
It rewards showing up. You don't need to win a single week to climb the season; you need to keep playing. Miss a week and you can still claw back. It's the difference between a lucky run and a habit, and habits are what get people hired.
You don't learn data in one heroic weekend. You learn it by showing up for two minutes, often enough that it sticks.
Why we built it this way
Three reasons, and they're the same reasons it works for you:
A reason to come back
Two minutes a week is small enough that there's no excuse to skip it, and a fresh challenge every week gives you a reason to return.
An honest signal
A leaderboard doesn't flatter you. It tells you where you actually stand, which is the fastest way to find the gaps worth closing.
Proof you can share
A strong rank, a season streak, a growing portfolio: these are concrete things you can mention in an application or an interview.
A little friendly pressure
Competing against other learners turns practice from a chore into a game. The top of the monthly season even earns a perk in our community.
Where the challenge fits
The weekly challenge is the low-commitment way in. It costs nothing, asks for two minutes, and tells you honestly whether the concepts are landing. If they are, the natural next step is to start building: pick a path and turn that knowledge into validated projects on your portfolio.
If you want to ease in even further, every path has a free intro course you can work through in your browser before you commit to anything.
But the simplest thing you can do today is play. This week's challenge is live, it's free, and you don't even need an account to start.
Frequently asked questions
- What is the D8A weekly challenge?
- It's a short, ranked quiz of six questions on SQL, statistics, and data thinking, refreshed every week. You play in about two minutes, your score and time are recorded, and you appear on that week's leaderboard. Anyone can play, and a free account lets you save your rank and join the monthly season.
- Do I need an account to play the weekly challenge?
- No. You can play this week's challenge without signing up. Creating a free account is what lets you keep your spot on the leaderboard, carry points into the monthly season, and link your result to your portfolio.
- How does the leaderboard work?
- There are two boards. The challenge board ranks players by score on the weekly quiz, with ties broken by completion time, and it resets each week. The portfolio board ranks members by the projects they've validated and shipped. The challenge also rolls up into a monthly season that totals your points across every weekly quiz that month.
- Is the weekly challenge free?
- Yes, the weekly challenge and both leaderboards are completely free. They're a no-pressure way to test your data skills, build a streak, and see how you stack up before you commit to a full learning path.
