What is the fee on Kalshi for this market?

At the current typical price of 30¢, about 1¢ per contract (7% × price × (1 − price), rounded up, on orders that take liquidity). On a $50 trade that is about $2.47.

What win rate do I need to break even?

About 31% if you hold to settlement, against a market price of 30%. The gap is the fee.

Markets › Kalshi › Science and Technology

Colonize Mars on Kalshi

If humans have a self-sufficient colony of at least 10 people residing on Mars for at least one Earth year before Jan 1, 2050, then the market resolves to Yes.

Settles on: Science Magazine, Space News, Scientific American, SpaceflightNow, Fox News, the Japan Aerospace Exploration Agency, Roscosmos, The Information, Nature, ABC News, the Indian Space Research Organisation, MSNBC, Semafor, Space, Bloomberg News, The Wall Street Journal, the China National Space Administration, the Planetary Society, BBC News, Virgin Galactic, CBS News, Reuters, NBC News, the European Space Agency, the Mars Society, CNN, SpaceX, The New York Times, The Washington Post, the Associated Press, Blue Origin, NASA.

Market says (typical open contract)

30%

Median YES price across 1 open contract, 10 Nov 2026 17:55 UTC.

Real-world odds

—

No independent base rate yet. Until we connect one (sportsbook consensus, forecasts, the score), the market's own price is the best public forecast, and the fee sits on top of it.

Luck needed meter

59% 😈

Half luck. The favorite is clear, the fee is not small, and the payout on the favorite is thin.

The cover charge

Fee and break-even by purchase price
If you buy at	Fee per contract	On $50	Win rate to break even
30¢ (now)	1.5¢	$2.45	31.5%
50¢	1.8¢	$1.75	51.7%
70¢	1.5¢	$1.05	71.5%
90¢	0.6¢	$0.35	90.6%

Resting orders pay no fee on this series. Formula: 7% × contracts × price × (1 − price), rounded up, on orders that take liquidity. Break-even assumes you hold to settlement; trading out early pays the fee twice.

How long until your balance is $0 in this market? →

Open contracts right now

Open contracts in this series with price, implied probability, volume and close time
Contract	YES price	Implied	Fee at this price	Real-world odds	Luck needed	Volume	Closes
Will humans colonize Mars before 2050? · Before 2050	30¢	30%	1.5¢	—	59%	30,130	Jan 01, 04:59 UTC

Who actually wins this market

Whoever posts the resting orders and collects the spread without paying a fee.
The venue, on every fee.
Not, on average, the person clicking buy because the chart is going their way. That was us.

Still want to play? Read the deal first: what the account asks for, what the bonus really is, and whether we are paid. Vendors sell bots for markets like this one; see the bot benchmark before you pay for one.