With around 37,500 people taking part in this year's London Marathon it can be difficult to pick out your loved ones, friends and colleagues.
So getwestlondon headed down to the start line to speak to some of those runners taking on the 26.2-mile course around the capital.
From amateur long-distance runners to fitness fanatics to charity fundraisers, the London Marathon - now in its 35th year - attracts people of all shapes, sizes, ages and backgrounds.
So here are some of them:
And don't forget to send us your marathon selfies by emailingor tweeting @getwestlondon using #LondonMarathon.