Suguru Osako isn't a big talker. So he doesn't try to entertain with his words.

But he's certainly determined to put on a good effort in the trial race for the Tokyo Olympics and the 2020 Summer Games.

"I've had good training and want to do the best I can the day after tomorrow," Osako said at a Tokyo news conference on Friday, two days ahead of the 13th edition of the Tokyo Marathon.