Former world bronze medalist Dai Tamesue continued on the comeback trail, competing in the 400-meter hurdles at a time trials in Ishikawa Prefecture on Sunday.

The 32-year-old national-record holder, who has been plagued by knee and ankle problems the past few years, posted a time of 51.26 seconds in his first race in his signature event since the 2008 Beijing Olympics.

"I am only 50 percent satisfied with my time but I was able to run at full strength and didn't feel any pain so I am happy about that," said Tamesue.

"Now it is just a case of getting used to competing. Hopefully I'll be able to run under 49 seconds next time."