 | | | | Av Time | | | Place | Races | 1st | 2nd | 3rd | Trophies | |
Marett Dan | 20.8 | | | 16 | 4 | 0 | 0 | 0 | | |
| 2011 | | 23:09:22 | | Lowe Pete & Marett Dan | Wokingham | 25 | | | | | |  |
| 2016 | | 22:52:50 | | Marett Christopher & Marett Dan | Southampton & Independent | 29 | | | | | |  |
| 2019 | | 19:36:38 | | Seddon Andrew & Marett Dan | Grenadier Guards & Longridge | 4 | | | | | |  |
| 2023 | | 17:41:48 | | Marett Dan & Plant Laurence | Shiplake | 6 | | | | | Veteran |  |
Margot Simon | 22.0 | | | 15 | 4 | 0 | 0 | 0 | | |
| 2025 | | 22:27:36 | | Johnson Gary & Margot Simon | Independent & Cambridge | 13 | | | | | |  |
| 2026 | | 21:49:11 | | Margot Simon & Fiacco Alessio | Cambridge | 16 | | | | | |  |
| 2026 | | 21:49:11 | | Margot Simon & Fiacco Alessio | Cambridge | 16 | | | | | |  |
| 2026 | | 21:49:11 | | Margot Simon & Fiacco Alessio | Cambridge | 16 | | | | | |  |
Margot Simon (Teddington) | 18.6 | | | 18 | 1 | 0 | 0 | 0 | | |
| 2024 | | 18:38:26 | | Johnson Gary & Margot Simon | Independent & Cambridge | 18 | | | | | |  |
Marien Rudy | 24.6 | | | 58 | 2 | 0 | 0 | 0 | | |
| 2009 | | 26:38:42 | | Marien Rudy & Siccard Maarten | Koninklijke Cano Club Mechelen | 88 | | | | | |  |
| 2019 | | 22:30:51 | | Verlinden Stien & Marien Rudy | Independent | 27 | | | | | |  |
Marjot C | 72.5 | | | 86 | 1 | 0 | 0 | 0 | | |
| 1983 | | 72:28:07 | | Marjot C & Howe C | Independent | 86 | | | | | |  |
Marks P J | 26.0 | | | 43 | 1 | 0 | 0 | 0 | | |
| 1978 | | 25:58:05 | | Marks P J & Jones S W | Royal Military Col. of Science | 43 | | | | | |  |
Marks William | 26.6 | | | 91 | 1 | 0 | 0 | 0 | | |
| 2014 | C2 | 26:38:13 | | Lunt Charles & Marks William | Wey | 91 | | | | | |  |
Markwell AJ | 34.0 | | | 108 | 1 | 0 | 0 | 0 | | |
| 1986 | | 33:59:30 | | Markwell AJ & Hancock P J | Independent | 108 | | | | | |  |
Marlborough N S | 26.9 | | | 87 | 1 | 0 | 0 | 0 | | |
| 1993 | | 26:54:45 | | Marlborough N S & Jones W R | Richmond | 87 | | | | | |  |
Marlow Duane | 36.4 | | | 100 | 1 | 0 | 0 | 0 | | |
| 2016 | | 36:26:26 | | Griffiths Jason & Marlow Duane | Army Canoe Union | 100 | | | | | |  |
Marlow G | 50.6 | | | 166 | 1 | 0 | 0 | 0 | | |
| 1987 | | 50:36:48 | | Marlow G & Sweatman G R | North Avon | 166 | | | | | |  |
Marquardt Sonia | 27.1 | | | 54 | 1 | 0 | 0 | 0 | | |
| 2006 | | 27:05:37 | | Marquardt Sonia & Shortt Caroline | Richmond | 54 | | | | | |  |
Marriot R | 30.7 | | | 2 | 1 | 0 | 1 | 0 | | |
| 1956 | FB | 30:41:00 | | Macpherson W A & Marriot R | 21 (Artists) | 2 | | | 1 | | Tyne |  |
Marriott A C J | 32.1 | | | 78 | 1 | 0 | 0 | 0 | | |
| 1995 | | 32:05:25 | | Maclean J & Marriott A C J | Army Trg. Regt. Winchester | 78 | | | | | |  |
Marriott R | 71.5 | | | 110 | 1 | 0 | 0 | 0 | | |
| 1995 | C2 | 71:27:43 | | Edwards B & Marriott R | N.U.O.T.C & Oxford University O.T.C. | 110 | | | | | |  |
Marris D | 25.4 | | | 11 | 1 | 0 | 0 | 0 | | |
| 1963 | | 25:22:52 | | Marris D & Boddington S | 4th Wilts (TA) | 11 | | | | | Reserve |  |
Marsden A | 25.1 | | | 96 | 1 | 0 | 0 | 0 | | |
| 1987 | | 25:07:45 | | Marsden A & McQueen R | HMS Osprey/RNKA | 96 | | | | | |  |
Marsden E H | 50.3 | | | 104 | 2 | 0 | 0 | 0 | | |
| 1983 | | 50:10:07 | | Powell R J & Marsden E H | Leaside | 71 | | | | | Veteran |  |
| 1986 | | 50:29:12 | | Powell R J & Marsden E H | Leaside | 137 | | | | | Veteran |  |
Marsden G | 53.5 | | | 129 | 3 | 0 | 0 | 0 | | |
| 1985 | | 48:47:44 | | Powell R J & Marsden G | Leaside | 121 | | | | | Veteran |  |
| 1989 | | 49:48:53 | | Powell R J & Marsden G | Leaside | 136 | | | | | Veteran |  |
| 1992 | | 61:50:34 | | Marsden G & Powell R J | Leaside | 131 | | | | | Veteran |  |
Marsh A D | 24.5 | | | 71 | 1 | 0 | 0 | 0 | | |
| 1986 | | 24:30:09 | | Marsh A D & Ross A | Royal Military Col. of Science | 71 | | | | | |  |
Marsh Andrew | 28.1 | | | 33 | 1 | 0 | 0 | 0 | | |
| 2003 | | 28:06:51 | | Marsh Stephen J & Marsh Andrew | Independent | 33 | | | | | |  |
Marsh D | 49.9 | | | 117 | 1 | 0 | 0 | 0 | | |
| 1993 | C2 | 49:56:15 | | Chaney B & Marsh D | North Avon | 117 | | | | | |  |
Marsh I | 26.4 | | | 111 | 1 | 0 | 0 | 0 | | |
| 1987 | | 26:23:40 | | Hawkesworth M & Marsh I | Scouts | 111 | | | | | |  |
Marsh S A | 24.6 | | | 17 | 1 | 0 | 0 | 0 | | |
| 1970 | | 24:38:56 | | Langley-Smith G F & Marsh S A | 21 (Artists) | 17 | | | | | |  |
Marsh Stephen J | 29.5 | | | 51 | 2 | 0 | 0 | 0 | | |
| 1999 | | 30:57:44 | | Napper S C & Marsh Stephen J | Independent | 68 | | | | | |  |
| 2003 | | 28:06:51 | | Marsh Stephen J & Marsh Andrew | Independent | 33 | | | | | |  |
Marshal M A J | 23.6 | | | 70 | 1 | 0 | 0 | 0 | | |
| 1988 | | 23:39:55 | | Marshal M A J & Jones R L H | Independent | 70 | | | | | |  |
Marshall-Taylor Paul | 26.1 | | | 29 | 1 | 0 | 0 | 0 | | |
| 2023 | | 26:03:09 | | Hutchison Peter & Marshall-Taylor Paul | Richmond | 29 | | | | | |  |
Marshall Avise | 51.4 | | | 168 | 1 | 0 | 0 | 0 | | |
| 1987 | | 51:22:21 | | Marshall M A J & Marshall Avise | Independent | 168 | | | | | |  |
Marshall C | 24.0 | | | 42 | 1 | 0 | 0 | 0 | | |
| 1991 | | 23:59:55 | | Mackenzie K J & Marshall C | Hemel Hempstead | 42 | | | | | |  |
Marshall G W | 21.5 | | | 25 | 1 | 0 | 0 | 0 | | |
| 1990 | | 21:31:28 | | Marshall G W & Stewart A D | Royal Marines | 25 | | | | | |  |
Marshall J K | 33.0 | | | 34 | 1 | 0 | 0 | 0 | | |
| 1976 | | 33:03:20 | | Marshall J K & Davis G P | Intelligence Centre | 34 | | | | | |  |
Marshall M A J | 51.4 | | | 168 | 1 | 0 | 0 | 0 | | |
| 1987 | | 51:22:21 | | Marshall M A J & Marshall Avise | Independent | 168 | | | | | |  |
Marshall Neil | 39.2 | | | 119 | 1 | 0 | 0 | 0 | | |
| 2017 | FB | 39:15:04 | | Marshall Neil & Mukungunugwa Believe | Cockleshell Endeavours & Royal Engineers | 119 | | | | | |  |
Marshall Nicholas | 25.1 | | | 56 | 1 | 0 | 0 | 0 | | |
| 2012 | | 25:08:29 | | Marshall Nicholas & Nicholson Rupert | Independent | 56 | | | | | |  |
Marshall P D | 22.3 | | | 39 | 4 | 0 | 0 | 0 | | |
| 1984 | | 22:48:55 | | Marshall P D & Moodie A | Wokingham Scouts | 44 | | | | | |  |
| 1985 | | 22:18:20 | | Marshall P D & Williams D J | Wokingham Scouts | 38 | | | | | |  |
| 1987 | | 21:22:49 | | Williams D J & Marshall P D | Wokingham Scouts | 37 | | | | | |  |
| 1990 | | 22:36:52 | | Williams D J & Marshall P D | Wokingham Scouts | 35 | | | | | Scouts |  |
Marshall P J | 30.5 | | | 72 | 1 | 0 | 0 | 0 | | |
| 1997 | | 30:28:34 | | Benton M & Marshall P J | Worcester | 72 | | | | | |  |
Marshall S | 24.4 | | | 44 | 1 | 0 | 0 | 0 | | |
| 1991 | | 24:22:49 | | Marshall S & Wade C | Ribble | 44 | | | | | |  |
Marshall W | 36.0 | | | 39 | 1 | 0 | 0 | 0 | | |
| 1961 | | 35:57:30 | | Weaver J & Marshall W | 1st Lancs | 39 | | | | | |  |
Marsham J | 35.0 | | | 28 | 2 | 0 | 0 | 0 | | |
| 1962 | | 36:17:45 | | Brooks R & Marsham J | RMA Sandhurst | 29 | | | | | |  |
| 1964 | | 33:40:29 | | Marsham J & Smith J | 1st Kings Shrop Light Infrantry | 27 | | | | | |  |
Marsham J K | 34.9 | | | 60 | 2 | 0 | 0 | 0 | | |
| 1970 | | 43:52:00 | | Marsham J K & Flemming Le | 3 Light Infrantry | 48 | | | | | |  |
| 1982 | | 25:55:20 | | Marsham J K & Rowiatt M | H.Q. U.K.LF. (Army) | 71 | | | | | |  |
Marsland D | 20.3 | | | 13 | 1 | 0 | 0 | 0 | | |
| 1990 | | 20:17:23 | | Marsland D & Jackson A | Royal Engineers | 13 | | | | | |  |
Marson R | 34.0 | | | 101 | 1 | 0 | 0 | 0 | | |
| 1985 | | 33:58:36 | | Tungatt D & Marson R | Chequered Paddlers | 101 | | | | | |  |