per the source material there were a total (extrapolated) of 135901 concussions across the 9 sports studied. 55007 for football - 40.5% of 135901 20929 for bo

per the source material there were a total (extrapolated) of 135901 concussions across the 9 sports studied. 55007 for football - 40.5% of 135901 20929 for boys soccer - 15.4% of 135901 29167 for girls soccer - 21.5% of 135901 50096 combined soccer 50096/135901 = 36.9% of all concussions were from soccer.