Reader photos: In sync

Sunday's L.A. Marathon was the subject of many photos capturing the occasion, but Flickr user Matthew Allard managed to snap this unique photo of three marathoners in perfect running form — and in unison with one another.

— Dianne de Guzman

Each week, we're featuring photos of Southern California submitted by readers. Share your photos on our Flickr page or reader submission gallery. Follow us on Twitter or visit latimes.com/socalmoments for more on this photo series.