1913 Epsom Derby with Louvois second and Great Sport third. Davison positioned herself at Tattenham Corner, the final bend before the home straight. At this point in the race, with some of the horses having passed her, she ducked under the guard rail and ran onto the course. She reached up to the reins of Anmer—King George V's horse, ridden by Herbert Jones—and was hit by the animal, which would have been travelling at around per hour, four seconds after stepping onto the course. Anmer fell in the collision and partly rolled over his jockey, who had his foot momentarily caught in the
Emily Davison flags to a horse; or that she intended to throw herself in front of one of the horses. The historian Elizabeth Crawford considers that "subsequent explanations of ... [Davison's] action have created a tangle of fictions, false deductions, hearsay, conjecture, misrepresentation and theory". In 2013 a Channel 4 documentary used forensic examiners who digitised the original nitrate film from the three cameras present. The film was digitally cleaned and examined. Their examination suggests that Davison intended to throw a suffragette flag around the neck of a horse or attach it to the horse's bridle. A flag was gathered from the