The top Indian male and female finishers will now stand to gain $7,500 each.
Ethiopia's Haile Gebrselassie shattered his own world marathon record in Berlin on Sunday when he became the first man to run under two hours four minutes.
From begging cigarettes to becoming one of the richest sportsmen in Kenya, marathoner Robert Cheruiyot's is an inspiring tale.
The Ethiopian crossed the line in 10 minutes 54 seconds at Fukuoka's chilly seaside course.
But the world marathon record holder will continue to compete as an individual after the 2004 Olympics.
The Kenyan won the Berlin race in an unofficial time of 2 hours 4 minutes and 55 seconds.
Britain's Mo Farah warned he aims to keep winning after becoming the first man in 40 years to retain the two Olympic distance crowns.
Summary of sports events and persons who made news on Thursday