Masters M85 marathon world record progression is the progression of world record improvements of the marathon M85 division of Masters athletics. Records must be set in properly conducted, official competitions under the standing IAAF rules unless modified by World Masters Athletics.
The M85 division consists of male athletes who have reached the age of 85 but have not yet reached the age of 90, so exactly from their 85th birthday to the day before their 90th birthday. Marathon running is not normally seeded into age divisions so all of these records were set in marathon race open to most other age groups.
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Incomplete information Pending
| Time | Athlete | Nationality | Birthdate | Location | Date | Ref |
|---|---|---|---|---|---|---|
| 3:56:38 | Ed Whitlock |  Canada
|
6 March 1931 | Toronto | 16 October 2016 | |
| 4:34:55 | Robert Horman |  Australia
|
1 May 1918 | Gold Coast | 4 July 2004 | |
| 4:47:50 | Josef Galia |  Germany
|
20 February 1898 | Rodenbach | 6 October 1984 | |
| 5:40:10 | Ivor Welch |  United States
|
19 January 1895 | Weott | 3 May 1981 | [1] |
| 5:55:11 | Ivor Welch | United States
|
19 January 1895 | San Mateo | 1 June 1980 | |
| 5:57:01 | Ivor Welch | United States
|
19 January 1895 | Weott | 4 May 1980 |