This is the progression of world record improvements of the 10000 metres M40 division of Masters athletics.
Key
HandAutoAthleteNationalityBirthdateLocationDate27:49.35 Bernard Lagat12 December 1974 Stanford1 May 2016 28:30.88 Martti Vainio30 December 1950 Hengelo25 June 1991 28:33.4 Lucien Rault30 March 1936 Rennes 9 June 1976Villeneuve d'Ascq25 June 197628:45.4Mamo Wolde12 June 1932 Munich31 August 197229:57.4 Alain Mimoun1 January 1921 Cambrai1 August 196430:14.2Nikifor Popov2 June 1911195530:24.2Nikifor Popov2 June 1911Helsinki20 July 1952
References
Masters Athletics 10000 m list