How does a challenge work?

The principle: opposing positions, one true outcome

On Ktkarena, every event offers mutually exclusive outcomes: only one of them will happen. Real Madrid wins or Barcelona wins. The election is won by one of the candidates running. Bitcoin breaks 100K dollars by the end of August, or it doesn't.

An event carries between two and eight outcomes, depending on what there is to settle. A match: two. A five-candidate primary: five. The number of outcomes and their exact labels are shown on the event, before you stake.

When you play, you pick an outcome. Someone, somewhere in Africa or elsewhere, takes a side on a different one. The winner takes the opposing stakes, minus our commission.

That's the P2P challenge: people facing off over a question whose answer will be verified.

Ktkarena's role: never your opponent

Ktkarena never plays against you. We never take a position on an outcome. We're just the referee who finds you a counterparty and secures your KTK while the event plays out.

Our business model is the commission we take on every resolved challenge. 1.5% if you're on the Institutional tier, 5% if you're starting out on the Discovery tier. The more you stake, the lower the rate. Learn more about the commission.

What happens when you confirm a challenge

Here's the complete mechanism, step by step:

1. You pick an event (a match, an election, a crypto price…).
2. You pick your outcome from those the event offers.
3. You pick your stake tier (Discovery, Standard, Premium, Elite or Institutional).
4. You pick the exact amount in KTK, within the tier's limits.
5. You confirm. Your KTK immediately leaves your wallet and goes into escrow (a secure vault managed by the platform).
6. The Cascade engine looks for a counterparty on a different outcome, on the same tier as you. On average, one is found in 3 seconds.
7. You get a notification: your challenge is matched. From then on, both stakes are locked in escrow.
8. The event plays out. You wait.
9. The result is confirmed (via a verifiable external source like a sports API, or by our team for events with no automatic source).
10. The winner receives the KTK from both stakes, minus our commission. The loser receives nothing.

All of this happens without you needing to understand the technical details. But it's important that you know what's going on behind the scenes.

Matching happens in two phases. Phase 1 - Live matching: when you start your challenge, an internal cascade immediately tries to find you an opponent (within your tier → inter-tier → aggregation). If nothing is found, a matching loop keeps searching in the background throughout the event. Phase 2 - Pool phase: a few minutes before closing, unmatched residuals are gathered into a mutualized pool. Depending on your preferences, you enter the pool or you are refunded in full. Details of the matching engine.

What sets Ktkarena apart

Three fundamental differences:

1. You challenge a person. Not an operator that sets multipliers to make the average player lose. When you win, it's because another person staked and lost. Not because a system "decided" you'd win.

2. No rigged multiplier. By default, every challenge is at ×2 - you stake X, you win 2X minus the commission. Learn more about multipliers.

3. Your KTK is in escrow. Until the event is resolved, neither you nor your opponent can touch the pot. The platform guarantees a fair release to the winner. That's what makes P2P possible.