 | | | | Av Time | | | Place | Races | 1st | 2nd | 3rd | Trophies | |
McGoughey C | 27.0 | | | 25 | 1 | 0 | 0 | 0 | | |
| 1973 | | 26:57:50 | | McGoughey C & Rees Arwyn | Royal Marines | 25 | | | | | |  |
McGowan Andrew | 36.0 | | | 79 | 1 | 0 | 0 | 0 | | |
| 2002 | | 36:00:27 | | Ingram Graham & McGowan Andrew | 8 Sig.Regt & Independent | 79 | | | | | |  |
McGowan W J | 24.2 | | | 85 | 1 | 0 | 0 | 0 | | |
| 1987 | | 24:13:01 | | McGowan W J & Homer B F | Marlow | 85 | | | | | |  |
Mcgrath Matt | 34.9 | | | 111 | 1 | 0 | 0 | 0 | | |
| 2015 | | 34:53:09 | | Byrne Paul & Mcgrath Matt | Laois Kayak & | 111 | | | | | |  |
Mcgrath Rory | 22.5 | | | 23 | 1 | 0 | 0 | 0 | | |
| 2013 | | 22:27:08 | | Kirkpatrick George & Mcgrath Rory | Falcon | 23 | | | | | Reserve |  |
McGregor A S | 28.0 | | | 25 | 1 | 0 | 0 | 0 | | |
| 1976 | | 28:00:10 | | Shergold S & McGregor A S | Royal Military Col. of Science | 25 | | | | | |  |
McGrory Colin | 23.8 | | | 55 | 1 | 0 | 0 | 0 | | |
| 2009 | | 23:45:09 | | McGrory Colin & Butcher Thomas | Royal Engineers | 55 | | | | | |  |
McIlwrick | 27.1 | | | 53 | 1 | 0 | 0 | 0 | | |
| 1997 | | 27:04:46 | | Merrick S B & McIlwrick | Independent | 53 | | | | | |  |
McInerney Andrew | 25.2 | | | 41 | 1 | 0 | 0 | 0 | | |
| 2002 | | 25:12:33 | | McInerney Andrew & Vallings Tom | Royal Military Col. of Science | 41 | | | | | |  |
McIntosh J | 33.0 | | | 29 | 1 | 0 | 0 | 0 | | |
| 1969 | | 32:59:37 | | Rooney B & McIntosh J | 16 Para | 29 | | | | | |  |
Mcintyre Donal | 17.8 | | | 3 | 1 | 0 | 0 | 1 | | |
| 1998 | | 17:47:04 | | Turrell Gavin & Mcintyre Donal | Richmond | 3 | | | | 1 | |  |
Mcintyre Sean | 23.5 | | | 30 | 1 | 0 | 0 | 0 | | |
| 2011 | | 23:30:36 | | Mcintyre Sean & O' Crualaoich Niall | Phoenix | 30 | | | | | European |  |
McKay A | 34.3 | | | 26 | 1 | 0 | 0 | 0 | | |
| 1966 | | 34:20:00 | | Crombie G J & McKay A | RAF Cranwell | 26 | | | | | |  |
Mckay Robert | 33.5 | | | 105 | 1 | 0 | 0 | 0 | | |
| 2011 | | 33:28:59 | | Mckay Robert & Horgan John | Devizes | 105 | | | | | |  |
McKeague D | 27.3 | | | 28 | 1 | 0 | 0 | 0 | | |
| 1967 | | 27:17:30 | | Kitchener K & McKeague D | 11 Eng Bde (Hameln) | 28 | | | | | |  |
McKeaveney J N | 34.7 | | | 94 | 1 | 0 | 0 | 0 | | |
| 1991 | C2 | 34:44:36 | | Jones M R & McKeaveney J N | Wiltshire Police | 94 | | | | | |  |
McKendrick J | 43.5 | | | 44 | 1 | 0 | 0 | 0 | | |
| 1973 | | 43:29:44 | | McKendrick J & Crothers J A | 3rd Division | 44 | | | | | |  |
Mckenna Barry | 22.5 | | | 30 | 10 | 0 | 0 | 0 | | |
| 2009 | | 23:06:12 | | Mckenna Barry & Wakley Gary | Exeter | 48 | | | | | |  |
| 2010 | | 22:08:37 | | Mckenna Barry & Wakley Gary | Exeter | 34 | | | | | |  |
| 2011 | | 23:16:58 | | Mckenna Barry & Wakley Gary | Exeter | 27 | | | | | |  |
| 2012 | | 23:43:49 | | Mckenna Barry & Wakley Gary | Exeter | 35 | | | | | |  |
| 2013 | | 23:04:18 | | Mckenna Barry & Wakley Gary | Exeter | 34 | | | | | |  |
| 2014 | | 22:02:58 | | Mckenna Barry & Wakley Gary | Exeter | 25 | | | | | |  |
| 2015 | | 21:49:41 | | Mckenna Barry & Wakley Gary | Exeter | 25 | | | | | |  |
| 2016 | | 21:37:18 | | Mckenna Barry & Wakley Gary | Exeter | 18 | | | | | |  |
| 2017 | | 21:29:15 | | Mckenna Barry & Wakley Gary | Exeter | 19 | | | | | |  |
| 2019 | | 23:15:16 | | Mckenna Barry & Wakley Gary | Artists Rifles | 35 | | | | | |  |
Mckenna Barry (Teddington) | 26.0 | | | 45 | 1 | 0 | 0 | 0 | | |
| 2022 | FB | 26:01:10 | | Mckenna Barry & Henderson James | Artists Rifles | 45 | | | | | |  |
McKenzie A | 29.4 | | | 16 | 1 | 0 | 0 | 0 | | |
| 1964 | | 29:23:35 | | McKenzie A & Peacock B | Metropolitan Police | 16 | | | | | |  |
McKenzie C | 27.0 | | | 14 | 1 | 0 | 0 | 0 | | |
| 1961 | | 26:58:00 | | McKenzie C & Godwin T | 1 Para | 14 | | | | | |  |
McKenzie I | 38.0 | | | 45 | 2 | 0 | 0 | 0 | | |
| 1961 | | 43:33:00 | | McKenzie I & Towes J | Metropolitan River Police | 48 | | | | | |  |
| 1967 | | 32:24:30 | | Peacock B & McKenzie I | Metropolitan Police AA | 41 | | | | | |  |
McKerr Darryl | 38.6 | | | 107 | 2 | 0 | 0 | 0 | | |
| 2007 | | 33:31:47 | | Hoey Stephen & McKerr Darryl | RMA Sandhurst | 80 | | | | | |  |
| 2009 | FB | 43:40:59 | | McKerr Darryl & Street Martin | 23 Engineer Regiment (Air Asslt) | 133 | | | | | |  |
McKinlay | 38.2 | | | 11 | 1 | 0 | 0 | 0 | | |
| 1951 | | 38:15:00 | | McKinlay & Acton | HMS Lochinvar | 11 | | | | | |  |
McKinley D B | 40.5 | | | 56 | 1 | 0 | 0 | 0 | | |
| 1967 | | 40:33:00 | | Oliphant M R & McKinley D B | Britannia College Dartmouth | 56 | | | | | |  |
McLaren Lyn | 23.0 | | | 60 | 4 | 0 | 0 | 0 | | |
| 1987 | | 24:04:09 | | Laycock Carol & McLaren Lyn | Windsor | 80 | | | | | |  |
| 1988 | | 23:51:00 | | McLaren Lyn & Laycock Carol | Windsor | 74 | | | | | |  |
| 1989 | | 22:22:36 | | McLaren Lyn & Eastgate J C | Newbury & Windsor | 45 | | | | | |  |
| 1992 | | 21:54:05 | | McLaren Lyn & Knowles D G | Newbury & Windsor | 39 | | | | | |  |
McLaughlin Paul | 23.9 | | | 30 | 1 | 0 | 0 | 0 | | |
| 2002 | | 23:51:01 | | Cole Peter & McLaughlin Paul | Dogleap | 30 | | | | | |  |
Mclellan Gina | 30.2 | | | 97 | 1 | 0 | 0 | 0 | | |
| 2011 | | 30:14:12 | | Mclellan Gina & Wilson Angus | AUOTC | 97 | | | | | |  |
McLellend P H | 20.9 | | | 28 | 1 | 0 | 0 | 0 | | |
| 1992 | | 20:56:35 | | McLellend P H & Praslick J G | RMCF | 28 | | | | | |  |
Mcleod Greg | 38.0 | | | 116 | 1 | 0 | 0 | 0 | | |
| 2017 | FB | 38:00:25 | | Hellin Darren & Mcleod Greg | Artists Rifles | 116 | | | | | |  |
McLeod Neil | 24.8 | | | 38 | 1 | 0 | 0 | 0 | | |
| 2006 | | 24:46:22 | | Fletcher Matthew & McLeod Neil | Richmond | 38 | | | | | |  |
McLeod R M | 61.7 | | | 85 | 1 | 0 | 0 | 0 | | |
| 1983 | | 61:40:35 | | Moreton R & McLeod R M | Basingstoke Canal | 85 | | | | | |  |
Mcllveen P A | 29.2 | | | 68 | 2 | 0 | 0 | 0 | | |
| 1991 | C2 | 36:53:50 | | Mcllveen P A & Jones Carol | Independent | 104 | | | | | |  |
| 1992 | | 21:28:30 | | Smith D & Mcllveen P A | Royal Engineers | 32 | | | | | |  |
Mcllwrick A C | 27.0 | | | 70 | 2 | 0 | 0 | 0 | | |
| 1991 | | 29:30:55 | | Cook A J & Mcllwrick A C | Mainstream | 71 | | | | | |  |
| 1992 | | 24:33:48 | | Cook A J & Mcllwrick A C | Mainstream | 69 | | | | | |  |
McMaberley M C | 40.2 | | | 162 | 1 | 0 | 0 | 0 | | |
| 1987 | | 40:11:50 | | McMaberley M C & Peet G | C. Coy 5 RRF | 162 | | | | | |  |
McMahon Katrina | 28.3 | | | 129 | 1 | 0 | 0 | 0 | | |
| 1987 | | 28:17:17 | | McMahon Katrina & Harden Helen | Windsor & Castle Hill | 129 | | | | | |  |
McManus Duncan | 25.0 | | | 40 | 1 | 0 | 0 | 0 | | |
| 2006 | | 24:59:21 | | McManus Duncan & Dyke John | Hamble Sea Scouts | 40 | | | | | |  |
McManus E | 34.1 | | | 84 | 1 | 0 | 0 | 0 | | |
| 1995 | | 34:05:55 | | McManus E & Sullivan M J | Independent | 84 | | | | | |  |
Mcmichael Peter | 23.5 | | | 37 | 1 | 0 | 0 | 0 | | |
| 2016 | | 23:27:02 | | Clarke Harvey & Mcmichael Peter | Army Canoe Union | 37 | | | | | |  |
McMillan J R | 36.1 | | | 115 | 1 | 0 | 0 | 0 | | |
| 1989 | | 36:04:57 | | McMillan J R & Tillman M C | Independent | 115 | | | | | |  |
McMulkin Tom | 21.4 | | | 12 | 1 | 0 | 0 | 0 | | |
| 2008 | | 21:22:00 | | McMulkin Tom & Mellor Guy | Royal Engineers | 12 | | | | | |  |
McMullon J | 34.9 | | | 83 | 1 | 0 | 0 | 0 | | |
| 1997 | | 34:53:47 | | Withers R & McMullon J | Marlow Rowing Club & Independent | 83 | | | | | |  |