Parlays & combos

Everything for Kalshi parlays (also called combos, or prop stacks) in one place. Grade a slip you already have, build a new one from live markets, see the real odds of how many legs will land, and learn how to hedge a ticket that's halfway home.

Start here
Evaluate your combo →
Paste it, upload a screenshot, or build it live. Get the odds ladder (how many legs you're likely to land), your weakest link, dead-weight legs to cut, and hedge options once some hit. Up to 16 legs.

Tools

Parlay & Combo Evaluator
Build a combo, paste it, or upload a screenshot of your slip. Get the odds of hitting each number of legs, your weakest link, dead-weight legs, and hedge options once some hit.
Parlay Autopsy
Paste a busted ticket and get the post-mortem: which leg killed it, what it was worth at its peak, and what locking it in would have guaranteed while it was alive.
Parlay Payout Calculator
Just the numbers: enter legs and a stake, see the fee-adjusted payout and the combined odds. The quick version of the evaluator.
Arbitrage Calculator
Check whether buying both sides (or a full field) locks a profit, and exactly how much, after fees.
Position Size (Kelly)
How much to stake on a single leg given your edge, so your combo legs are sized sanely, not by feel.

Learn

How Kalshi parlays actually work
There's no one-click parlay ticket; you replicate one by rolling winnings from one contract into the next. Here's the mechanic, and the fees at each step.
Strategy: when a combo is worth it
Most combos are -EV lottery tickets. The cases where stacking legs makes sense, and how to tell the difference.
Bankroll & sizing
Combos are variance machines. How to size them so one cold streak doesn't end your bankroll.

The honest math on combos

Every leg you add multiplies your potential payout, but it multiplies the ways to lose faster. A leg priced at 60¢ only has to be a 60% shot, stack eight of those and the whole ticket is a coin flip of a coin flip of a coin flip: you’ll usually land four or five and cash nothing, because a parlay pays only if every leg hits.

That’s not a reason to never play one, it’s a reason to know the real number before you do. The evaluator shows it: the odds of hitting each count of legs, which leg is dragging you down, and, once you’re live, how much you can lock in by hedging.

Common questions

How do I evaluate my Kalshi parlay?
Open the evaluator, then paste your legs, upload a screenshot of the slip, or build it from live markets. You'll get the combined odds, the chance of hitting each number of legs, your weakest leg, any dead-weight legs, and hedge options once some legs have won.
Can I check my combo by screenshot?
Yes. Upload a screenshot of your slip and it's read on your device (nothing is uploaded), the legs are matched to live markets, and check-marked (already won) legs are detected automatically.
How do I hedge a Kalshi parlay?
Once some legs have won and a few remain, mark the winners and the evaluator shows hedge options: how much to bet against your riskiest remaining leg to lock in a guaranteed floor, at 25/50/75/100%, with the profit you keep each way.
Why do big parlays rarely hit?
Each leg multiplies the ways to lose faster than it grows the payout. The odds ladder makes this concrete: on an 8-leg combo you'll typically land around 4, while going a clean 8-for-8 might be a few percent, and a parlay only pays if every leg hits.
Are parlays, combos, and prop stacks the same?
People use the terms interchangeably. Any bet needing several outcomes to all hit is a parlay (or combo, or prop stack). The evaluator handles them the same way, up to 16 legs.