I’ve been doing Parkrun for a year now. Yes, I’m one of those crazy people that get up early every Saturday morning and run 5 Kms with 166490 parkrunners across 20 countries and 1637 locations. After a while, something interesting happened, I was asked to explain estimation to a group of people new to agile ways of working and found that I could explain relative estimation by using my Parkrun experience with my friends. The requirement is the same – run a distance of 5 kms. However, the time taken will vary widely between runners. Even though the parkrun is a set 5kms, it takes our whole group to finish anywhere between 20 – 55 mins. So why don’t we all finish at the same time? Well, there are a number of factors to consider including our fitness, age, equipment and expertise at running as well as the complexity of the course. The same is true with estimations for work products. There is natural variability between estimates by people based on context, team members capability and so forth. As a Professional Scrum Trainer (PST), I have found Parkrun anecdotes a relatable way to explain some complex concepts such as velocity, pairing, relative estimation, sprinting, sustainable pace and more. This presentation is for people wanting to understand agile principles as it will share these and other training tips and techniques that you can use with your teams.