> ## Documentation Index
> Fetch the complete documentation index at: https://docs.kickchain.fun/llms.txt
> Use this file to discover all available pages before exploring further.

# Match Sets, WC26 Album, and the Leaderboard Explained

> Complete match sets by predicting all three markets per fixture, finish the WC26 album, and climb the leaderboard with rarity-weighted points.

Kickchain is built around two connected goals: assembling a complete collection and proving you're the sharpest predictor in the tournament. Sets track your collection completeness — how much of the WC26 album you've filled in. The leaderboard tracks your prediction quality — how many correct calls you've made, weighted by how bold those calls were.

## Match sets

### How a set works

Every World Cup fixture has exactly three prediction markets: **Match Result (1X2)**, **Over/Under 2.5 Goals**, and **Both Teams to Score (BTTS)**. Predicting all three markets for the same fixture completes that fixture's **match set**.

<Steps>
  <Step title="Predict one market">
    Make any prediction for a fixture — for example, predicting the Match Result. One slot of the three-card set is now filled.
  </Step>

  <Step title="Predict the second market">
    Add a prediction for the Over/Under market for the same fixture. Two slots filled.
  </Step>

  <Step title="Complete the set">
    Predict the BTTS market for the same fixture. All three cards are in your collection — the match set is complete.
  </Step>
</Steps>

<Note>
  You don't need winning predictions to complete a set. Any prediction — correct or not — fills its slot. Set completion is about collecting, not predicting correctly.
</Note>

### The WC26 album

Each completed match set is a piece of the larger **WC26 album**. The album spans every fixture in the World Cup 2026 — group stage through to the final. Complete all the match sets across every fixture and you've completed the full WC26 album.

Your set progress is visible in two places:

* **Collection tab** — shows your cards organised by fixture, with a clear indicator of which sets are complete, partial, or untouched.
* **Matches screen** — each fixture card shows a set progress indicator (0/3, 1/3, 2/3, or ✓ Complete) so you can spot gaps at a glance.

<Info>
  Because the on-chain program enforces one prediction per wallet per market, each set slot can only be filled once. There's no going back to fill a slot after the market closes, so predicting before kick-off is the only way to complete every set for a fixture.
</Info>

***

## Leaderboard

### How it works

The Kickchain leaderboard ranks every player by their **rarity-weighted prediction score**. Only **settled winning predictions** count — pending, live, and missed predictions have no impact on your score.

The leaderboard is computed entirely from on-chain state. Every settled prediction account is read directly from Solana, with no reliance on a centralised server. Your score is whatever the chain says it is — fully transparent and verifiable by anyone.

### Scoring

Your total score is the sum of the rarity weights of all your correct, settled predictions.

| Rarity    | Correct prediction scores |
| --------- | ------------------------- |
| Common    | 1 point                   |
| Rare      | 2 points                  |
| Epic      | 3 points                  |
| Legendary | 5 points                  |

A Legendary correct prediction is worth **five times** a Common correct prediction. Getting a single 7.00+ underdog right contributes as much to your score as five correctly called favourites.

### Scoring example

Say you finish the group stage with these settled wins:

| Prediction                                       | Rarity    | Points |
| ------------------------------------------------ | --------- | ------ |
| Germany to beat Brazil (odds: 1.85)              | Common    | 1      |
| Over 2.5 goals, Argentina vs France (odds: 2.10) | Rare      | 2      |
| BTTS: No, Morocco vs Spain (odds: 3.80)          | Epic      | 3      |
| Ecuador to beat England (odds: 8.50)             | Legendary | 5      |

**Total: 11 points** — with the single Legendary call contributing nearly half your total score on its own.

<Tip>
  Bold predictions on long-shot outcomes can catapult you up the leaderboard. A string of correct calls on clear favourites builds a steady score, but one well-timed Legendary — calling the right underdog at the right moment — can leapfrog dozens of cautious predictors above you.
</Tip>

### What doesn't count

* **Pending or live predictions** — score is only updated when a result is settled on-chain.
* **Missed predictions** — incorrect calls don't subtract points. A wrong prediction just doesn't score.
* **Set completion** — completing sets is tracked separately from leaderboard points. A full album doesn't directly add to your score.

### Checking the leaderboard

The leaderboard is available from the main navigation. It shows the global rankings across all WC26 predictors, your current rank and total score, and a breakdown of your winning predictions by rarity tier. Because every score is derived from on-chain data, the rankings update as results are settled — no manual refresh needed.