At the end of the day, Kosuke Kitajima was another swimmer who needs constant and extraordinary hard work to get a "W." But it seems that once he gets back on track, he can still be on top.

Returning to national-level competition for the first time since the 2008 Beijing Olympics, Kitajima failed to win any of the three races he participated in at the Japan National Swimming Championships.

"I feel like it's finally over," Kitajima said with a sigh of relief after the men's 100-meter breaststroke final at Tokyo Tatsumi International Swimming Center on Sunday.