This is the progression of world record improvements of the pole vault M55 division of Masters athletics.
Key
HeightAthleteNationalityBirthdateAgeLocationDateRef4.60 mWolfgang Ritte7 January 1953Voerde8 June 20084.26 mHans Lagerqvist28 April 1940Visby24 August 19964.12 mRichmond "Boo" Morcom 1 May 1921Hampton4 August 19763.90 mHerbert Schmidt11 January 1910Duisburg26 April 1966
References
Masters Athletics Pole Vault list