Streak · 7 days+185 XP
7-Day Data Diary
Each day record one number from your life, like steps or minutes read, in a simple table. Check in once a day.
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Tech · Facts & stats · iChallenge network
The Big Data Challenge
Daily facts and stats about big data, plus real challenges to put them to work.
Warm-up questionNot ranked · tap an answer
In data pipelines, what does ETL stand for?
ETL pulls data from sources, cleans and reshapes it, then loads it into a destination system.
Level1Rookie
XPPlay a round to earn XP
Streak0days
LeagueBronzeweekly
Daily #11Resets at midnight UTC
Today's round
- 5 questions
- 20s each
- 0 played today
One ranked attempt per day. Practice as much as you like.
Challenges
Join one, log your days or post your proof. Finishing earns XP and the Finisher badge.
Proof+250 XP
Make a Chart
Turn your data diary or any public dataset into a chart using a free spreadsheet. Post a link or write-up of what it shows.
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Streak · 14 days+220 XP
14-Day Data Term Streak
Learn one data term a day, like ETL, sharding or data lake, and explain it simply. Check in daily.
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Proof+250 XP
Clean a Messy Dataset
Download a small public CSV file, fix missing or duplicate rows, and post a short write-up of what you changed.
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By the numbers
Live counts from BigDataChallenge.com. All arena stats →
Facts in the pack12
Visitors, 30 days31
Leaderboard
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Badges
Earned on any arena, shown on your profile everywhere.
First RoundFinish your first daily round.
FlawlessAnswer every question in a round correctly.
LightningA perfect round in under 25 seconds.
On a RollPlay 3 days in a row.
Week WarriorPlay 7 days in a row.
UnbreakablePlay 30 days in a row.
ExplorerPlay daily rounds in 5 different arenas.
GlobetrotterPlay daily rounds in 25 different arenas.
PolymathPlay daily rounds in 5 different topics.
In the ArenaJoin your first challenge.
FinisherComplete a challenge.
RecruiterInvite a friend who finishes a round.
CaptainInvite 5 friends who finish a round.
PodiumFinish a day in an arena's top 3.
ChallengerReach level 10.
Profile SavedSave your progress with an email.
Save your progress
Add your email to keep your level, streak and badges if you switch devices, and carry them to every iChallenge arena. One email when you save; no spam.
Put a prize on a challenge
Fund a prize on BigDataChallenge.com and your brand sits on the challenge card, the leaderboard and every finisher's share. Prizes only appear once they're funded, so players can trust what they see.
- Pick the challenge and the prize
- We review entries before a funded prize is awarded
- You get finisher and engagement numbers after it closes
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Questions
Do I need an AI background?
No. Quizzes start with fundamentals; challenges scale from prompting to building.
Where do scores live?
On this site's public leaderboard — post a score and claim your rank.
How does the daily round work?
Everyone on this arena gets the same five questions each day, from easy to hard. You get one ranked attempt; practice rounds are unlimited.
How is my score calculated?
100 points per correct answer, up to 50 more for answering quickly, a combo multiplier for answers in a row, and 150 bonus points for a perfect round.
Is it free?
Yes. Playing, streaks, badges and leaderboards are free. Some challenges carry a sponsor-funded prize; the challenge card shows it when one is funded.
