Japan sprinter Kiryu

Japan sprinter Kiryu

TOKYO, Japan - File photo shows Japan's sprinter Yoshihide Kiryu. The 17-year-old Kiryu's time of 10.01 seconds in the men's 100 meters at the Oda Memorial International on April 29, 2013, may not be recognized as a world junior record by the International Association of Athletics Federations because a device that measures wind speed was not used during the race, informed sources said on May 14.

Kiryu matches 10.01-seconds personal best in 100m

Kiryu matches 10.01-seconds personal best in 100m

Sprinter Yoshihide Kiryu poses for photos in front of an electric board, which showed he tied his personal best of 10.01 seconds in the men's 100 meters on June 11, 2016, during the national collegiate individual championships in Hiratsuka, near Tokyo. (Kyodo) ==Kyodo

Kiryu matches 10.01-seconds personal record in 100m

Kiryu matches 10.01-seconds personal record in 100m

Sprinter Yoshihide Kiryu (353) runs in the men's 100 meters during the national collegiate individual championships in Hiratsuka, near Tokyo, on June 11, 2016, tying his personal record of 10.01 seconds, the second-fastest time by a Japanese. (Kyodo) ==Kyodo

Kiryu matches 10.01-seconds personal record in 100m

Kiryu matches 10.01-seconds personal record in 100m

Sprinter Yoshihide Kiryu celebrates after tying his personal record of 10.01 seconds -- the second-fastest time by a Japanese -- in the men's 100 meters during the national collegiate individual championships in Hiratsuka, near Tokyo, on June 11, 2016. (Kyodo) ==Kyodo

Kiryu matches 10.01-seconds personal best in 100m

Kiryu matches 10.01-seconds personal best in 100m

Sprinter Yoshihide Kiryu poses for photos in front of an electric board, which showed he tied his personal best of 10.01 seconds in the men's 100 meters on June 11, 2016, during the national collegiate individual championships in Hiratsuka, near Tokyo. (Kyodo) ==Kyodo

Kiryu matches 10.01-seconds personal record in 100m

Kiryu matches 10.01-seconds personal record in 100m

Sprinter Yoshihide Kiryu (353) runs in the men's 100 meters during the national collegiate individual championships in Hiratsuka, near Tokyo, on June 11, 2016, tying his personal record of 10.01 seconds, the second-fastest time by a Japanese. (Kyodo) ==Kyodo

Hamstrung Kiryu could miss world championships

Hamstrung Kiryu could miss world championships

Photo shows Japanese sprinter Yoshihide Kiryu. Toyo University said June 3, 2015, that the 19-year-old, who owns the second-fastest national time of 10.01 seconds in the men's 100 meters, will be unable to train for six weeks due to a right hamstring strain. (Kyodo) ==Kyodo