The 5 TOUGHEST parkruns

Lots of us claim our parkrun is mega hilly and super tough BUT is it one of the 5 toughest parkruns? Thanks to the experts at RunBritain and the amazing volunteers who sent us footage of their courses, we can show you exactly what they’re like!

↓↓ Have you run any of the toughest parkruns? Or have you been inspired to do a bit of parkrun tourism in the quest to tackle the toughest? Tell us in the comments below ↓↓

The list’s made using the Standard Scratch Score (‘SSS’) of each course. This is a unique system developed by the guys at RunBritain which is a score relating to the course difficulty. The higher the number the more difficult the course is. This is what they say is used to calculate it:

"The SSS is a difficulty score based on how easy or difficult it was to run a quick time in a given race. The harder it was to run a quick time, the higher the SSS score. The way it is worked out is by looking at people's times in a particular race and comparing it against their previous performances. As a very simplified example, if 100 people run in race A one weekend, and the same 100 run in race B over the same distance the next weekend, if, on average, the field is 60 seconds slower in race B than race A, there was clearly some factor (be it weather conditions, accuracy of course measurement, type of terrain, competitiveness of the field, how hilly the course was etc) which caused times to be slower. Therefore the SSS for race B will be higher than the SSS for race A."
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