He's looking for an impressive time on the flat course.
It's a repeat matchup of last year's Berlin Marathon.
They last raced each other in the Berlin Marathon.
She admits her marathon training has gone well.
He faces stiff competition in Tokyo on Sunday.
He thinks his record is around to stay.
He says he's in top shape still.
Despite his recent setbacks, he still thinks he can win gold.
The marathon world-record holder has struggled with injury.