See real data. Draw the future. Get scored against reality in real time as the world catches up to your prediction.
Predictions are curves
Pick a chart. See the history. Sketch where you think it's heading next.
Markets
Next 6 months
S&P 500 Price
1,842
Forecasters
94.2%
Top Score
6
Categories
US Unemployment Rate
Economics
12 months
Bitcoin Price
Markets
3 months
NBA MVP PPG
Sports
Season
Scored against reality
As real data arrives, your curve is scored against what actually happened. Climb the leaderboard.
Accuracy Over Time
Your curveActual
Your Score
S&P 500 · 6-month challenge · ranked #12
94.2
Top Forecasters
#1curvehunter
7d streak96.8
#2macro_owl
4d streak95.1
#3bayesian_betty
12d streak94.2
#4trendline_tom
3d streak93.7
FAQ
What is long·markets?
long·markets is a prediction platform where you draw curves on charts to forecast real-world outcomes. Challenges span economics, sports, markets, climate, and more. When the data comes in, your curve is scored against reality.
How does scoring work?
Your drawn curve is compared against actual outcomes as data arrives. The closer your prediction matches reality across the full time range, the higher your score. Scores update continuously as new data points come in.
Is it free?
Yes. Anyone can browse challenges, draw predictions, and compete on the leaderboard for free.
What kinds of challenges are there?
Challenges cover five categories: Markets (stocks, crypto, commodities), Economics (GDP, inflation, unemployment), Sports (scores, standings, records), Climate (temperature, sea levels), and Life (population, trends, culture).
Who is behind long·markets?
long·markets was started in 2025 by a small team that believes forecasting should be visual, intuitive, and open to everyone — not just quants and data scientists.