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Maths in rugby: territory percentages

Rugby Maths

Maths in rugby: territory percentages

For older juniors, compare time spent in each half.

Quick answer

Maths in rugby: territory percentages means working out what part of the game time a team spends in different areas of the field. You use fractions, decimals, and percentages to show how much time is spent in each zone.

Learning outcome

By the end of this page, you will be able to calculate and compare the percentage of time a rugby team spends in different areas of the field during a match. Success signs:

You can show how much time a team spends in each area of the field using percentages
You can compare the time spent in different areas
You can explain why these percentages matter in rugby
You can work out what part of a game is spent in a specific area

Why this matters

Understanding territory percentages in rugby helps you see how teams play and plan their moves. Coaches use this information to know if their team is spending too much time in their own area or not enough time in the opponent's area. It's also great for understanding how much time players spend doing different things like running, tackling, or resting. Even if you're not watching rugby, these math skills help you understand time, parts of a whole, and how to compare different amounts. You can use the same ideas when you're planning your day, dividing up your time, or sharing your snacks.

How it works

To work out territory percentages in rugby, follow these steps:

Find the total time - A rugby match is 80 minutes long (40 minutes each half)
Count time in each area - How much time does the team spend in their own 22m, 22m to 40m, 40m to 60m, 60m to 80m, and in the opponent's 22m?
Write as fractions - For example, if a team spends 20 minutes in their own 22m, that's 20/80 of the game
Convert to decimals - 20 divided by 80 = 0.25
Convert to percentages - 0.25 × 100 = 25%

Examples you can see

Let's imagine a rugby match where Team A spends time in different areas:

Area of Field	Time Spent (minutes)	As Fraction	As Decimal	As Percentage
Own 22m	15	15/80	0.1875	18.75%
22m to 40m	20	20/80	0.25	25%
40m to 60m	25	25/80	0.3125	31.25%
60m to 80m	10	10/80	0.125	12.5%
Opponent's 22m	10	10/80	0.125	12.5%

Example: If a team spends 25 minutes in the 22m to 40m area of the field:

As a fraction: 25/80
As a decimal: 25 ÷ 80 = 0.3125
As a percentage: 0.3125 × 100 = 31.25%

Try it as a mini adventure

Adventure: The Rugby Team's Time Map You are a rugby coach planning your team's strategy for a match. You have a list of how much time your team spends in each area of the field. Your job is to work out the percentages and create a map showing how much time is spent in each area. Here's your data:

Own 22m: 12 minutes
22m to 40m: 20 minutes
40m to 60m: 25 minutes
60m to 80m: 10 minutes
Opponent's 22m: 13 minutes

Task: Work out the percentage of time spent in each area.

First, add up all the minutes: 12 + 20 + 25 + 10 + 13 = 80 minutes
Then, for each area, divide by 80 and multiply by 100
Own 22m: 12 ÷ 80 × 100 = 15%
22m to 40m: 20 ÷ 80 × 100 = 25%
40m to 60m: 25 ÷ 80 × 100 = 31.25%
60m to 80m: 10 ÷ 80 × 100 = 12.5%
Opponent's 22m: 13 ÷ 80 × 100 = 16.25%

Now you can see that your team spends the most time in the middle of the field (31.25%) and the least time in the 60m to 80m area (12.5%).

Common mistakes

Mistake: Forgetting to add up all the time first before calculating percentages.
Why it happens: Kids rush to calculate without checking their total.
Fix: Always add all times together first to make sure you have 80 minutes.
Mistake: Dividing the wrong way - dividing by 100 instead of dividing by 80.
Why it happens: Confusing the process of converting to percentages.
Fix: Remember to divide by the total game time (80 minutes), not by 100.
Mistake: Mixing up which area is which.
Why it happens: Getting confused by the field zones.
Fix: Draw a simple rugby field and label the zones clearly.
Mistake: Not writing decimals with the right number of places.
Why it happens: Not understanding decimal places.
Fix: Use a calculator or long division to check your decimal answers.

Parent and carer guide

How to help your child:

Use real rugby examples: Watch a match together and ask questions like "What part of the game do you think they spend most time in?"
Practice with a timer: Set a timer for 80 minutes and let your child spend different amounts of time in different zones of your home room.
Use a simple field drawing: Draw a rugby field with labels and let your child mark where they think their team spends time.
Make it visual: Use colored pencils or stickers to show different zones on a field drawing.
Check the math: Ask your child to explain how they got their answers and why they think those percentages make sense.

What to watch for:

Does your child understand that percentages show parts of a whole?
Can they convert between fractions, decimals, and percentages?
Do they add up times correctly?
Are they comfortable dividing by 80?

What not to worry about:

Your child might make small mistakes with decimal places - this is normal
They might need to practice with simpler numbers first
They might not understand rugby rules yet - focus on the math part

Practice questions

Team B spends 18 minutes in their own 22m. What percentage of the game is this?
Team C spends 22 minutes in the 40m to 60m area. What percentage is this?
Team D spends 15 minutes in the opponent's 22m. What percentage is this?
If a team spends 10 minutes in each of 5 zones, what percentage is spent in each zone?
What is the total percentage of time spent in all zones?

Answers:

18 ÷ 80 × 100 = 22.5%
22 ÷ 80 × 100 = 27.5%
15 ÷ 80 × 100 = 18.75%
10 ÷ 80 × 100 = 12.5% in each zone
100% (All zones must add up to 100%)

FAQ

What is territory in rugby?

Territory in rugby refers to the part of the field where a team spends most of their time during a match. It's usually divided into areas like the own 22m, 22m to 40m, 40m to 60m, 60m to 80m, and the opponent's 22m.

Why do coaches care about territory percentages?

Coaches use territory percentages to understand how teams are playing. If a team spends too much time in their own area, they might not be attacking effectively. If they spend too much time in the opponent's area, they might be taking too many risks.

How do you convert minutes to percentages?

You divide the number of minutes by the total game time (80 minutes) and then multiply by 100. For example, 20 minutes out of 80 minutes is 20 ÷ 80 × 100 = 25%.

Can you use territory percentages for other sports?

Yes! You can use territory percentages for basketball, football, hockey, and many other sports. It's a great way to understand how teams spend their time.

How can I practice territory percentages at home?

You can practice by timing yourself doing different activities and calculating what part of your day you spend on each one. For example, if you spend 30 minutes playing, 20 minutes eating, and 30 minutes watching TV, you can work out what percentage of your time is spent on each activity.