Creating a knockout fixture with an even number of teams can be a bit tricky, but it is definitely possible. Here is a step-by-step guide on how to do it:

1. Determine the number of teams
First, you need to know how many teams will be participating in the knockout tournament. Let's say there are eight teams.

2. Create a bracket
Next, you need to create a knockout bracket that will accommodate all eight teams. To do this, you can use an online bracket generator or create your own using a spreadsheet or pen and paper.

3. Seed the teams
Seeding the teams is important because it ensures that the strongest teams do not face each other in the early rounds of the tournament. You can seed the teams based on their rankings or use a random method.

4. Round 1
In the first round, you will have four matches. The winners of each match will move on to the next round while the losers will be eliminated. Here are the matchups:

- Match 1: Seed 1 vs Seed 8
- Match 2: Seed 4 vs Seed 5
- Match 3: Seed 3 vs Seed 6
- Match 4: Seed 2 vs Seed 7

5. Round 2
In the second round, the four winners from the first round will face off. Here are the matchups:

- Match 5: Winner of Match 1 vs Winner of Match 4
- Match 6: Winner of Match 2 vs Winner of Match 3

6. Semifinals
In the semifinals, the winners of matches 5 and 6 will face each other. The losers will be eliminated.

7. Finals
The two remaining teams will face off in the finals. The winner will be crowned the champion.

By following these steps, you can create a knockout fixture with an even number of teams. Just remember to seed the teams properly and create matchups that are fair and balanced.