 | | | | Av Time | | | Place | Races | 1st | 2nd | 3rd | Trophies | |
Maynard Nigel (Teddington) | 23.3 | | | 38 | 1 | 0 | 0 | 0 | | |
| 2022 | | 23:19:04 | | Rutledge Alan & Maynard Nigel | Raf Canoe Association | 38 | | | | | |  |
Maynard R D | 38.3 | | | 16 | 1 | 0 | 0 | 0 | | |
| 1959 | | 38:19:15 | | Peacock B & Maynard R D | Thames Police Athletic Club | 16 | | | | | |  |
Mayne Jonathan | 28.3 | | | 34 | 1 | 0 | 0 | 0 | | |
| 2003 | | 28:17:58 | | Mayne Jonathan & Paterson Fiona | Richmond | 34 | | | | | |  |
Mayne R | 63.2 | | | 20 | 1 | 0 | 0 | 0 | | |
| 1957 | | 63:10:15 | | Peacock B & Mayne R | Thames Police Athletic Club | 20 | | | | | |  |
Mayneford R W | 37.7 | | | 89 | 1 | 0 | 0 | 0 | | |
| 1997 | | 37:42:35 | | Price R C & Mayneford R W | Independent | 89 | | | | | |  |
Mayo K A | 19.5 | | | 14 | 1 | 0 | 0 | 0 | | |
| 1987 | | 19:30:53 | | Iles E G & Mayo K A | Independent | 14 | | | | | |  |
Mayrhofer G | 50.3 | | | 46 | 1 | 0 | 0 | 0 | | |
| 1976 | | 50:20:50 | | Mayrhofer G & Harper M | Independent | 46 | | | | | |  |
Mazurk J E | 41.6 | | | 43 | 2 | 0 | 0 | 0 | | |
| 1966 | | 37:09:05 | | Mazurk J E & Horton M P | RAF Cranwell | 28 | | | | | |  |
| 1967 | | 46:01:30 | | Mazurk J E & Hibbert C J | RAF Oakington | 58 | | | | | |  |
McAllister-Hewlings B | 17.4 | | | 6 | 1 | 0 | 0 | 0 | | |
| 1994 | | 17:25:23 | | Newbutt D & McAllister-Hewlings B | Nottingham | 6 | | | | | |  |
McAllister-Hewlings D | 20.3 | | | 10 | 1 | 0 | 0 | 0 | | |
| 1997 | | 20:18:47 | | McAllister-Hewlings D & Chapman S M | Nottingham | 10 | | | | | |  |
McAllister-Hewlings J H | 21.1 | | | 27 | 1 | 0 | 0 | 0 | | |
| 1989 | | 21:07:18 | | Wesley D & McAllister-Hewlings J H | Nottingham | 27 | | | | | |  |
McAllister-Hewlings T | 21.4 | | | 33 | 1 | 0 | 0 | 0 | | |
| 1988 | | 21:22:10 | | Bacon D & McAllister-Hewlings T | Nottingham | 33 | | | | | |  |
McAllister Elizabeth | 29.2 | | | 88 | 1 | 0 | 0 | 0 | | |
| 2012 | C2 | 29:14:00 | | Sutherland Robert & McAllister Elizabeth | Wokingham & Independent | 88 | | | | | |  |
McAllister Robert | 35.9 | | | 78 | 1 | 0 | 0 | 0 | | |
| 2002 | C2 | 35:55:15 | | McAllister Robert & Roleston Stuart | 3 Royal Irish | 78 | | | | | |  |
McArthur J C | 25.3 | | | 44 | 2 | 0 | 0 | 0 | | |
| 1980 | | 25:12:55 | | Wood W R & McArthur J C | Royal Navy | 45 | | | | | |  |
| 1981 | | 25:23:01 | | Baker DA & McArthur J C | HMS Daedalus RNKA | 43 | | | | | Navy |  |
McAteer A | 35.7 | | | 123 | 1 | 0 | 0 | 0 | | |
| 1984 | | 35:40:00 | | Crutchley I & McAteer A | Queens University Air Sqn. | 123 | | | | | |  |
McBride J S | 21.9 | | | 18 | 1 | 0 | 0 | 0 | | |
| 1977 | | 21:52:15 | | Milford C W & McBride J S | 21 (Artists) | 18 | | | | | |  |
McBurney K M | 32.8 | | | 42 | 1 | 0 | 0 | 0 | | |
| 1967 | | 32:49:30 | | Boyle E J & McBurney K M | RAF Cranwell | 42 | | | | | |  |
McBurnie R A | 47.0 | | | 56 | 1 | 0 | 0 | 0 | | |
| 1971 | | 47:02:57 | | McBurnie R A & Brayer A L | Independent | 56 | | | | | |  |
McCabe R | 34.5 | | | 45 | 1 | 0 | 0 | 0 | | |
| 1971 | | 34:27:53 | | Curry P & McCabe R | 4 Para | 45 | | | | | |  |
McCall Robert | 26.9 | | | 62 | 5 | 0 | 0 | 0 | | |
| 1997 | | 35:36:12 | | McCall Robert & Greenin M J | Independent | 84 | | | | | |  |
| 2010 | | 24:20:54 | | Mccall Robert & Harrison Richard | Soar & Independent | 72 | | | | | |  |
| 2013 | | 24:55:20 | | Hall-Mcair Robert & Mccall Robert | Independent | 50 | | | | | |  |
| 2015 | | 26:00:32 | | Mccall Robert & Charnell Gary | Hinckley & Independent | 82 | | | | | |  |
| 2025 | | 23:48:37 | | McCall Robert & Charnell Gary | Hinckley & Independent | 20 | | | | | |  |
Mccallion S | 36.7 | | | 80 | 1 | 0 | 0 | 0 | | |
| 1999 | | 36:44:29 | | Mccallion S & Willis S | Royal Military Col. of Science | 80 | | | | | |  |
McCann Edward | 27.4 | | | 99 | 1 | 0 | 0 | 0 | | |
| 2009 | | 27:21:11 | | McCann Edward & Griffiths Richard | RMA Sandhurst | 99 | | | | | |  |
McCarrick P | 58.5 | | | 146 | 1 | 0 | 0 | 0 | | |
| 1986 | | 58:33:55 | | Willis J & McCarrick P | Independent | 146 | | | | | |  |
McCarroll Stuart | 25.5 | | | 45 | 2 | 0 | 0 | 0 | | |
| 2007 | | 30:36:18 | | Dabney Owen & McCarroll Stuart | Falcon | 77 | | | | | |  |
| 2009 | | 20:28:50 | | McCarroll Stuart & Dabney Owen | Falcon | 13 | | | | | |  |
McCarthy D | 28.0 | | | 18 | 1 | 0 | 0 | 0 | | |
| 1961 | | 27:58:00 | | McCarthy D & Gibbins G | 3 Para | 18 | | | | | |  |
McCarthy T | 24.2 | | | 52 | 11 | 0 | 0 | 0 | | |
| 1987 | | 28:32:28 | | Richards E W J & McCarthy T | Gwendraeth Valley Paddlers | 136 | | | | | |  |
| 1988 | | 23:00:59 | | Richards E W J & McCarthy T | Gwendraeth Valley Paddlers | 59 | | | | | |  |
| 1989 | | 33:14:39 | | Berry C & McCarthy T | Teifi Valley Racing | 105 | | | | | |  |
| 1990 | | 21:49:56 | | McCarthy T & Rees M | Cambrian & North Yorks Police | 27 | | | | | |  |
| 1992 | | 23:37:35 | | Davies G & McCarthy T | Welsh Canoeing Association | 56 | | | | | |  |
| 1993 | | 21:24:15 | | Rees M & McCarthy T | Kingfisher | 39 | | | | | |  |
| 1994 | | 19:43:40 | | Tatam C J & McCarthy T | Kingfisher | 18 | | | | | |  |
| 1995 | | 22:05:30 | | Price J & McCarthy T | Kingfisher | 31 | | | | | |  |
| 1996 | | 24:49:20 | | Browning C & McCarthy T | Rosie & Jims | 28 | | | | | |  |
| 1997 | | 24:10:51 | | Semple M & McCarthy T | Islamabad & Rosie & Jims | 34 | | | | | |  |
| 1999 | | 24:12:43 | | McCarthy T & Harris Peter | Glamorgan & Blackwater Valley | 38 | | | | | |  |
McClean J | 30.6 | | | 22 | 1 | 0 | 0 | 0 | | |
| 1961 | | 30:34:00 | | McClean J & Blyth C | 3 Para | 22 | | | | | |  |
McClelland R | 39.4 | | | 39 | 1 | 0 | 0 | 0 | | |
| 1963 | | 39:23:26 | | McClelland R & Debham J | RAF Swinderby | 39 | | | | | |  |
Mccloud Simon | 23.5 | | | 43 | 2 | 0 | 0 | 0 | | |
| 2015 | | 24:47:27 | | Mccloud Simon & Brazier Alex | Artists Rifles | 64 | | | | | Reserve |  |
| 2016 | | 22:08:18 | | Simpson Edward & Mccloud Simon | Artists Rifles | 21 | | | | | Reserve |  |
McClue M J | 22.2 | | | 22 | 1 | 0 | 0 | 0 | | |
| 1991 | | 22:11:01 | | Phillips M I & McClue M J | Kingston Polytechnic | 22 | | | | | |  |
Mcclure Michael | 23.9 | | | 59 | 1 | 0 | 0 | 0 | | |
| 2010 | | 23:51:40 | | Mcclure Michael & Hallissey Oisin | Independent | 59 | | | | | |  |
Mcclure Roger | 23.9 | | | 41 | 1 | 0 | 0 | 0 | | |
| 2016 | C2 | 23:53:58 | | Boland Ken & Mcclure Roger | Kilkenny Aqua | 41 | | | | | European |  |
Mccluskey Steven | 25.9 | | | 63 | 1 | 0 | 0 | 0 | | |
| 2013 | | 25:55:19 | | Mannering David Robert & Mccluskey Steven | Pangbourne | 63 | | | | | |  |
McCourt Jonpaul | 23.8 | | | 44 | 1 | 0 | 0 | 0 | | |
| 2014 | | 23:45:46 | | Clements Raymond & McCourt Jonpaul | Devizes | 44 | | | | | |  |
McCue Ian | 29.3 | | | 113 | 1 | 0 | 0 | 0 | | |
| 2009 | C2 | 29:18:17 | | McCue Ian & John Morris | GVP & 5th Carmarthen | 113 | | | | | |  |
McDaid Jamie | 24.6 | | | 35 | 1 | 0 | 0 | 0 | | |
| 2006 | | 24:39:50 | | Landers David & McDaid Jamie | Chelmsford | 35 | | | | | |  |
McDiarmid N | 27.0 | | | 103 | 1 | 0 | 0 | 0 | | |
| 1990 | | 27:01:18 | | McDiarmid N & Baldwin A | 2nd Royal Green Jackets | 103 | | | | | |  |
McDonagh Andrew | 22.1 | | | 18 | 1 | 0 | 0 | 0 | | |
| 2002 | | 22:09:18 | | Deere Jeremy & McDonagh Andrew | Independent & Glamorgan | 18 | | | | | |  |
McDonald A | 35.9 | | | 114 | 1 | 0 | 0 | 0 | | |
| 1989 | | 35:55:56 | | McDonald A & Bird E G | Poole Harbour | 114 | | | | | |  |
McDonald A J | 62.7 | | | 113 | 1 | 0 | 0 | 0 | | |
| 1997 | | 62:41:03 | | Miller N A & McDonald A J | Seae | 113 | | | | | |  |