Harding Index

A completely necessary measure of how your running aligns with Girls Aloud’s discography.

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Best Ever Streak

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Current Streak

What is it?

It takes every Girls Aloud song, puts them in order, and asks you to do something very simple:

Run a parkrun that matches each song. Then do the next one. In order. Without messing it up.

Your Harding Index is how far you get.

The songs are fixed, in order.

Each song gives you letters.

Take the first letter of each word in the title.

Sound of the Underground → S, O, T, U

Run a matching parkrun.

No repeats in a streak.

Miss a step, the streak ends.

Your score is your best streak.

Because Girls Aloud didn’t just make pop music.

They made really, really good pop music.

Name an Oasis song better than ‘The Show’. That’s right, you can’t.

This planner is based on your current streak — what you need to do next to keep it going.

Each song gives you a set of letters. Your job is to pick a parkrun that matches one of them — without ruining what comes next.

Some choices keep things open. Some quietly make the next few weeks much harder.

You don’t need to overthink it. But if you do, it helps.

You are already on step 1.
The rest is up to you.