Concept Document · April 2026
Concept Document · April 2026
The Fantasy League for the Real World

The game
the world
deserves.

"Sharp" — prediction market vernacular for a skilled, informed participant. The opposite of a recreational square.

"Sharp" in prediction market vernacular means a skilled, informed participant — the opposite of a recreational square. This is the identity the product is built on.

$44B
Prediction market volume in 2025
DraftKings, FanDuel, Underdog, PrizePicks and Fanatics all launched prediction market products in late 2025. None of them built the social layer.
59M
Fantasy sports players in the US
An audience primed for season-long competition, weekly decisions, and league trash talk. No product speaks to them yet.
0
Social game layers built on prediction markets
The market is proven. The infrastructure exists. The audience is waiting. The game hasn't been built.
The big idea

Fantasy football made every game matter.
Sharp makes the world matter.

Fantasy football didn't create the NFL — it put a social game layer on top of data that already existed. Before fantasy, a Bengals vs Titans game in week 12 was irrelevant unless you were from Cincinnati. Fantasy gave millions of fans a personal stake in every game, driving viewership across the entire league.

Sharp does the same for prediction markets. Pick a Fed rate contract and you suddenly have a reason to track PPI data, read central bank language, follow energy prices. Sharp doesn't just entertain — it broadens its users' horizons as a direct consequence of play.

"Fantasy football made you watch games you had no reason to watch. Sharp makes you read news you had no reason to follow."
What we borrowed from fantasy football
Season-long arc
Adopted
League as social unit
Adopted
Skill and luck balance
Adopted
Weekly cadence
Adopted
Status and identity
Adopted
Amplification effect
Sharp's own
Year-round + global
Sharp's own
Adopted from fantasy football
Sharp's structural advantage
The problem

Prediction markets have
everything except a reason
to come back.

01
No community
Sports betting works because the community already exists.
A Manchester United fan doesn't need a reason to follow the match. The club, the season, the shared identity — it's all pre-loaded. Prediction markets have none of that. A Fed rate decision doesn't have fans. Nobody grew up rooting for CPI to come in below 3.2%.
"Sports matches are communal events of general interest. People are already fans of sports teams before the betting starts, and the predictable pace of seasons creates an ongoing community. The same cannot be said of most prospective prediction markets."
— Works in Progress, Why Prediction Markets Aren't Popular
02
No retention
Without community, there is no reason to return.
The experience is entirely solitary. You pick alone, wait alone, find out alone. When the contract resolves, the emotional thread is cut. Nothing pulls you back.
93%
Drop in Kalshi DAU from election peak to 8 months later
70%
Of Polymarket users are gone within 90 days
Fantasy sports average user tenure: 9.5 years.
03
The gap is structural
Nobody is building the social layer.
DraftKings, FanDuel, Underdog, PrizePicks, Fanatics — all launched prediction market products in 2025. Every single one is a trading interface. None of them built a game. They are infrastructure companies, not consumer product companies. The gap isn't accidental.
✓ Liquidity
✓ Contracts
✓ Regulation
✗ Community
✗ Season arc
✗ Social stakes
Sharp's answer
The league is the community. Your friends become your reason to care about the Fed the same way a fantasy league made you care about a Bengals game in week 12. Sharp doesn't wait for a prediction market community to emerge organically. It manufactures one.
Target audience

59 million people who
already know how to play
this game.

The fantasy sports player doesn't need to be educated on season-long competition, weekly picks, league dynamics, or trash talk. They've been doing it for an average of 9.5 years. Sharp only needs to expand their subject matter — from sports rosters to world events.

Primary
The Fantasy Sports Player
25–44 · US
58%aged 25–44
74%male
$80k+HHI (30% more likely than avg)
78%college educated
$465avg annual spend on fantasy
9.5 yrsavg tenure
They follow the news anyway. They have opinions about the Fed, the election, the market. They just have nowhere to put those opinions competitively. Sharp gives their existing worldview a scoreboard.
Secondary
The Curious News Consumer
28–45 · financially literate
Reads the FT, listens to macro podcasts, follows the news but finds Kalshi's trading interface intimidating. Sharp frames picks as picks — not financial instruments. Lower acquisition cost, high retention once the social layer hooks them.
Who Sharp is not for
✗ The degenerate gambler chasing maximum leverage
✗ The Polymarket trader managing a portfolio
✗ Anyone who needs real-money payout to stay engaged
How it works

Five categories.
Two tiers. One Clash.

Sports
Macro
Politics
Culture
Open — all four

Pick from any open Kalshi contract across five categories. Two scoring tiers drive the season. Sharp Clash puts you head-to-head against a specific opponent on a single contract. Each league commits to one category — or Open to mix them all.

Sharp Minds FC · Week 7
League
Season rank
1st
of 8 players
Total pts
621
1
You
621
2
Alex
548
3
Sara
489
Full standings →
Draft now — 2 picks left
Activity
Season pick revealed
2h
You called Bitcoin at 12% — week 1, 80 credits.
+2,667 pts
🔥 4
😤 2
💬 3
A
Alex
80cr at 12%... absolute audacity
T
Tom
I had that on my list. I'm sick.
Pick resolved
Yesterday
Alex called Fed holds — yes. +13 pts.
👍 1
Slate
Roster
Budget
League
Chat
League hub
Sharp Minds FC
Roster
Weekly1×
2 left
Man City wins Arsenal
Yes+16
+16
S&P above 5,800
Yes+0
+0
Fed holds rates in May
Yes
pending
CPI below 3.2%
Yes
pending
Empty — draft →
+
Monthly Budget4×
Hidden · 460cr left
Bitcoin above $100k
Yes · 80cr@12%+2,667
+2,667
Fed cuts 3+ times
Yes · 200cr@28%
pending
Hidden until resolved
locked
Slate
Roster
Budget
League
Chat
Roster — your picks
Week 7 · locks 1h 48m
The Slate
2 picks left this week
Available this week
Fed holds rates in May
78%
YES · called+13 pts
CPI below 3.2% this month
19%
Yes
No
LeBron scores 30+ vs Bulls
34%
Yes
No
Republicans win 2026 midterms
62%
Yes
No
Confirm picks
Slate
Roster
Budget
League
Chat
Slate — weekly draft
Sharp Minds FC · Clash
Incoming ⚡
A
Alex challenges you
Stake: 200 credits
Will CPI come in below 3.0% in May?
Alex's pick is hidden until resolution
Decline — opens to league
Your clash record
4
Won
2
Lost
1
Live
vs Alex
Fed holds in March
Won · +200cr
vs Sara
S&P above 5,500
Lost · -150cr
Slate
Roster
Budget
League
Chat
League — Sharp Clash
Sharp Minds FC · 5 active
Chat
T
Tom
anyone else on CPI this week?
yes — 19% with PPI context
A
Alex
bold from someone up 73 pts 😂
S
Sara
swapped my Fed pick. felt crowded
Sara that's going to hurt
A
Alex
how much did you put on Bitcoin?? 2,667 pts 💀
80 credits at 12%. see you in the playoffs 👋
T
Tom
CPI Thursday is chaos. whole league has a stake in one print
Slate
Roster
Budget
League
Chat
Chat — league talk
← swipe to explore all screens →
1
1× Weekly
7 picks
Slate · Visible
Drafted every Monday from a curated slate. Visible to your league from the moment you lock in. Bold calls under 25% flagged with a lightning bolt.
4
4× Monthly
1,000 cr
Budget · Hidden
1,000 credits per four-week cycle, resetting three times through the season. Min 100 per pick, up to 10 picks. Contract, direction, and investment all hidden until resolved.
⚡
vs · Clash
Any stake
Sharp Clash · Blind
Name an opponent. Set a stake. Sharp assigns the contract. Both players pick YES or NO independently — neither sees the other's call until resolution. Declined Clashes open to the whole league.
Weekly: (10 ÷ probability at pick time) × 1
Monthly budget: (credits invested ÷ probability at pick time) × 4
Clash: winner takes the staked credits · loser scores zero
Wrong picks score zero. Calling NO uses the inverted probability.
League structure

Private and public.
Every Monday. Fourteen weeks.

Private leagues
4–100 players
Invite only. Commissioner creates and runs the league. Starts any Monday. Your friends, your rules.
Public leagues
Auto-matched
10–12 players per division. Starts the first Monday of every month. Top 2 promoted, bottom 2 relegated.
Regular season
12 weeks · standings-based
→
Playoffs · Weeks 13–14 · top 4
Seed credits at 2× · runs alongside weekly picks
1st
500 cr
2nd
400 cr
3rd
300 cr
4th
200 cr
Seed-weighted credit allocation · all picks at 2× multiplier · hidden until resolved
Business model

Three streams.
Day one.

Commissioner fee
$5–$15
Per league created. Commissioner pays, participants play free.
Sweepstakes rake
10–15%
Of entry fee pools. Self-funding. Legal in all 50 states.
Kalshi affiliate
$20–50
"Trade this on Kalshi" CTA on every contract. Per qualified referral.
Build the social layer Kalshi needs but won't build themselves. Grow to 10,000 MAU. Walk in with retention data they can't ignore. Exit or partner.
Why users play

Three reasons.
One you can't find anywhere else.

Prove you're sharp
Your public record
Sharp score, season champion badge, and a permanent hall of fame. Your prediction history becomes your identity on the platform.
"I called Bitcoin at 12% and put 80 credits on it." No other game produces this sentence.
Sharp Clash
The grudge match
Call out a specific opponent. Sharp assigns the contract. Both players pick blind — neither knows the other's call until the contract resolves. Declined Clashes open to the whole league.
"I Clashed Alex on CPI and neither of us knew what the other picked. She called YES. I called NO. We found out together on Thursday."
Rewards
Streak milestones
Streak milestones unlock real roster advantages. Sweepstakes prizes for league winners. Annual platform championship.
7 consecutive correct daily picks earns a bonus swap. Skill translates into tangible advantage.
The differentiation

Sharp doesn't just entertain.
It makes you smarter.

Every morning, the Sharp Brief tells you what's happening today that affects your specific picks. When a contract's probability moves more than 10 points, Sharp explains why in plain language. When a pick resolves, a debrief explains what actually happened and what you should have been watching.

Users who play Sharp for a season genuinely learn to read macro signals, follow geopolitical developments, and understand market probability in ways they didn't before.

Sharp Brief — morning context
Sharp Clash — blind head-to-head
Post-resolution debrief — learn why
"Fantasy football made you care about players.
Sharp makes you care about being right."