Coker first began riding alongside her father, Ricky, as a teenager, and found success as a racer, placing sixth in the time trial at the junior national championships in 2010.
She later enrolled at Fort Lewis College in Durango, Colorado as part of a collegiate cycling programs.
The crash threw her 50 feet (15 m) and knocked her unconscious, leaving her with brain and spinal injuries.
Riding a course in Flatwoods Park in Tampa Bay she rode 237.19 mi (382 km) a day on average.
For 77 years that record was held by Tommy Godwin, who set off in January 1939 and reached the 100,000 mi (160,934 km) mark in May 1940, after 500 days of cycling.