10k (or 6.2 miles) is a great distance for running, and these events are some of the most popular in the USA. The 10k distance is a healthy challenge for new runners, and a few events will build up serious fitness. Set yourself the challenge of running an event in under an hour for a decent time and a good workout. Running 10km in 60 minutes would burn about 600 calories. For seasoned athletes, the 10k is a perfect distance to keep fit and boost your pace, without completely exhausting yourself. If you're training towards a fast half-marathon or marathon event, you might set yourself the challenge of running 10k in under 40 minutes. There are hundreds of 10k events in the USA running calendar, and they are often part of big city running festivals, so there is bound to be a great atmosphere cheering you on to a new PB. Other events take you past famous landmarks or through stunning landscapes.