Following two toe surgeries, Richards Ross injured her calf muscle before the 2015 USATF national championships, leading her to finish fifth in her semi-final and preventing her from qualifying for the 2015 Beijing World Championship. Despite not qualifying for the individual event, she was still selected to participate in the women's 4 x 400 meters relay at the 2015 Beijing World Championships, running her leg in 51.5 seconds and helping the United States team win silver.