◂
NAVIGATE
🏠HOME 📖HOW IT WORKS 📈HOW PRICING WORKS 📋EXCHANGE RULES ⚡HOW WE'RE DIFFERENT
MY ACCOUNT
LIVE
INTRODUCING BALLSTREET

Fantasy sports
meets
Wall Street.

Draft MLB players like stocks, trade in real-time, and watch your portfolio move on every at-bat. The highest portfolio value at season's end wins.

Real-Time PRICE UPDATES
1,190+ MLB PLAYERS
$10K STARTING CASH
SIMULATION
PRICE CHART
—
RECENT OUTCOMES
HOW IT WORKS

A new kind of
fantasy league.

Strategy over speed. Every player gets a fair shot at the best players through our draft system — then it's all about reading the market.

01
Create or Join a League
Invite friends, set your house rules — trade limits, roster requirements, starting cash, and season length. Commissioner controls the league.
02
Draft Your Roster
When the commissioner opens the draft, everyone submits share requests during the window. Oversubscribed players are allocated pro-rata — no speed advantage, pure strategy.
03
Trade In-Season
After the draft, the market opens. Buy and sell shares in any of 1,190+ MLB players. Share prices are scarce — Ohtani has fewer shares available than a rookie call-up.
04
Watch Prices Move
Every at-bat updates prices in real time. Home run? Up 5%. Bases loaded strikeout? Down more. Situational multipliers make clutch moments matter more.
05
Highest Portfolio Wins
At season's end, the portfolio with the highest total value takes the pot. Buy low on rising stars, cut losers early, and manage your roster requirements.
FEATURES

Built for the
serious fan.

Every detail of BallStreet is designed around the rhythm of a baseball season.

⚡
Real-Time Price Engine
Prices update on every at-bat using a weighted algorithm. HR, K, BB, GIDP — every outcome has a precise impact on share value. Clutch situations multiply the impact.
🎯
Pro-Rata Draft System
Everyone submits requests during the draft window. Oversubscribed players are split proportionally — no speed advantage, no luck. Pure roster strategy wins.
🏟️
Equal Dollar Exposure
Each player's total float equals ~$10,000. Ohtani has fewer shares at a higher price. A $20 rookie has 10x more shares. Equal upside potential for every player tier.
⚾
Roster Requirements
Commissioner-set minimums: catchers, infielders, outfielders, starters, relievers. Strategy isn't just who you buy — it's how you build and maintain your roster.
⭐
Watchlist & League Activity
Star players to track them across the market. See your league's full transaction log — every draft allocation, buy, and sell — with filters by player, team, position, and member.
📈
Portfolio Performance Chart
Track your total equity over time with 1 Day through season-to-date range views. See your highs, lows, and trajectory at a glance — just like a real brokerage dashboard.
THE ALGORITHM

Price is truth.

Every at-bat outcome has a precise, weighted impact on a player's share price. No black boxes — you always know why a price moved.

Prices use a rolling window of recent at-bats so current form matters more than history. A slumping superstar is a buying opportunity. A hot streak drives the price up — until it doesn't.

⚾ HITTERS
EVENT TYPE OUTCOME PRICE IMPACT
Home RunPositive+5.0%
TriplePositive+3.5%
DoublePositive+2.5%
Stolen BasePositive+2.0%
SinglePositive+1.5%
WalkPositive+1.0%
Groundout / FlyoutNegative−1.0%
StrikeoutNegative−2.0%
GIDPNegative−3.5%
Fielding
ErrorNegative−3.0%
⚾ PITCHERS
EVENT TYPE OUTCOME PRICE IMPACT
SavePositive+4.0%
Strikeout (K)Positive+3.0%
Perfect
InningPositive+2.0%
Groundout / Put OutPositive+0.5%
Home Run AllowedNegative−5.0%
Blown SaveNegative−5.0%
Earned RunNegative−4.0%
Wild PitchNegative−3.0%
Walk IssuedNegative−2.0%
Hit AllowedNegative−1.5%
HOW BALLSTREET IS DIFFERENT

Not your typical fantasy league.
The stock market for sports.

⚡ BALLSTREET
✓ Pro-rata draft — strategy over speed
✓ Prices move on every at-bat
✓ Slumps create buying opportunities
✓ Commissioner-controlled draft window
✓ Trade freely all season long
✓ Real market dynamics and scarcity
✓ Every game matters all season
✗ TRADITIONAL FANTASY
✗ First-come first-served draft day
✗ Points only update weekly
✗ Busted players rot on your roster
✗ Locked to draft day decisions
✗ Limited waiver wire moves
✗ Everyone can own the same players
✗ Season over by August
PLATFORM ACTIVITY

What the market
is doing right now.

Top 10 most bought and most sold players across every BallStreet league — updated in real time.

TOP 10 MOST BOUGHT LAST 1 DAY · CROSS-LEAGUE
TOP 10 MOST SOLD LAST 1 DAY · CROSS-LEAGUE

The market opens
Opening Day 2027.

Ready to trade? Create a league with friends or join an existing one.