5k (or 3.1mile) running events are hugely popular and easily accessible, especially with the wide variety that California has on offer. Fun runs are a great way of getting kids, friends, family, or even the dog involved with running. These races often require fancy dress or getting covered in bubbles, colors, or mud! They also sometimes have a charitable focus, so they are great opportunities for fundraising and community-building whilst keeping fit. Many larger running festivals often offer a 5k distance event, so that runners of all abilities can get involved. For example, at the Surf City Marathon and Half Marathon, which attracts over 20,000 participants each year, there is a 5k option on the same day. However, our personal favorite 5k event in California is the Carlsbad 5000, which is a super fast, record-breaking course. It has a big atmosphere, and always treats racers to a well-earned craft beer at the finish line.
282events found
18
Sun, Oct 18, 2026
San Francisco, US • Run 5 km
4.5(27)
1
Sun, Nov 1, 2026
San Francisco, US • Run 2 mi - Run 13.1 mi
21
Sat, Nov 21, 2026
San Diego, US • Run 5 km - Run 2 hours and 30 minutes
