According to the `` Boston Herald '' , race director Dave McGillivray said Statement he was sending Sending paperwork to the IAAF to have Mutai 's mark ratified Ratification as a world record .

The IAAF describe Statement the altitude of the race Competition , , as being `` energy-draining '' , an assessment Statement backed up by the 2013 winner Kibet .

Thus , it is also an IAAF Gold Label race Competition .

In 2013 , it was listed as an IAAF Bronze Label Road Race for the first time , a status it retained Preserving in 2014 .

The 2010 IAAF World Cross Country Championships Competition were held Hold at Myślęcinek Park in Bydgoszcz , Poland on 28 March 2010 .

In 2014 , 2015 and 2016 it was accredited Judgment_communication with IAAF Silver Label status. , in 2017 it was the first African Marathon to achieve Achieve IAAF Gold Label Status , which it continues to achieve Achieve .

In 2014 , 2015 and 2016 it was accredited Judgment_communication with IAAF Silver Label status. , in 2017 it was the first African Marathon to achieve Achieve IAAF Gold Label Status , which it continues to achieve Achieve .

An IAAF Gold Label Road Race , it was the first World Marathon Majors event to be held Hold that year and represented the first occasion that the Tokyo race was part of the elite-level marathon series .

The 1992 edition of the race incorporated Cause_to_amalgamate the 1st IAAF World Half Marathon Championships .

It holds Defending IAAF Gold Label Road Race status .