Author experienced last three years ninety-six injuries of bicycle race champions, in kokura including 37 bruises, 25 cerebral concussions, 19 fractures, 8 contusions, 5 abrasions, and 2 other cases. Among 20 fractures, fifteen were clavicles, one was the re-fractures in the same part, and one thrice in the same part.
Age; fifty-six cases are found, especially in 21 to 25 year-old champions, and next to them come 16 to 20.
Seasons, many injuries occured in winter and a few in autumn.
There was no death case.
In the final races or grand races, the injuries are comparatively rare, for the best grade champions take part in it.
Recently the injured and patients who go to hospital in the race have decreased than before.
