 | | | | Av Time | | | Place | Races | 1st | 2nd | 3rd | Trophies | |
Grenter G | 36.2 | | | 102 | 1 | 0 | 0 | 0 | | |
| 1991 | | 36:10:30 | | Grenter G & Roberts P | 1st Woodley Venture Scouts | 102 | | | | | |  |
Grewcock D C | 19.5 | | | 22 | 1 | 0 | 0 | 0 | | |
| 1993 | | 19:30:15 | | Pimm M & Grewcock D C | Harrow & Wealdstone V.S.U. | 22 | | | | | Scouts |  |
Grewcock Danny | 37.7 | | | 113 | 1 | 0 | 0 | 0 | | |
| 2019 | FB | 37:40:34 | | Grewcock Danny & Todd James | None | 113 | | | | | |  |
Grewcock I P | 19.0 | | | 6 | 6 | 0 | 1 | 0 | | |
| 1990 | | 19:27:48 | | Smith D N & Grewcock I P | Royal Engineers | 7 | | | | | Army,Services |  |
| 1991 | | 19:07:50 | | Grewcock I P & Beegan A F | Royal Engineers | 2 | | | 1 | | Army,Services |  |
| 1992 | | 17:53:40 | | Grewcock I P & Beegan A F | Royal Engineers | 5 | | | | | Army,Services |  |
| 1993 | | 17:50:25 | | Grewcock I P & Hazzard R L | Royal Engineers | 9 | | | | | |  |
| 1996 | | 20:09:20 | | Grewcock I P & Bailey M S | Royal Engineers | 7 | | | | | Army |  |
| 1997 | | 19:42:35 | | Grewcock I P & Walker R G | Royal Engineers | 6 | | | | | Army |  |
Grey J | 28.6 | | | 22 | 2 | 0 | 0 | 0 | | |
| 1973 | | 29:44:45 | | Grey J & Raybone M | Gloucester | 29 | | | | | |  |
| 1974 | | 27:23:45 | | Grey J & Raybone M | Gloucester | 15 | | | | | |  |
Grief D A | 27.4 | | | 37 | 1 | 0 | 0 | 0 | | |
| 1975 | | 27:25:17 | | Grief D A & Peach S R | Leverton & 5 Windsor Scouts | 37 | | | | | |  |
Grieson LG | 27.5 | | | 40 | 1 | 0 | 0 | 0 | | |
| 1983 | | 27:31:19 | | Grieson LG & Taylor J B | Royal Artillery | 40 | | | | | |  |
Griffin Andrew | 26.8 | | | 44 | 1 | 0 | 0 | 0 | | |
| 2008 | | 26:45:46 | | Dutton Charlie & Griffin Andrew | Richmond | 44 | | | | | |  |
Griffin Donna Michelle | 21.2 | | | 18 | 1 | 0 | 0 | 0 | | |
| 1997 | | 21:12:54 | | Barshaw S A & Griffin Donna Michelle | Nottingham | 18 | | | | | |  |
Griffin P R | 27.1 | | | 13 | 1 | 0 | 0 | 0 | | |
| 1974 | | 27:03:32 | | Griffin P R & White P S | 17 Trg Regt & Depot R A | 13 | | | | | |  |
Griffin Royston | 24.7 | | | 36 | 1 | 0 | 0 | 0 | | |
| 2006 | | 24:40:24 | | Griffin Royston & Smith Jason | Royal Signals | 36 | | | | | |  |
Griffith Jackson | 38.4 | | | 49 | 1 | 0 | 0 | 0 | | |
| 2003 | | 38:22:43 | | Griffith Jackson & Tyszkiewicz John | Independent | 49 | | | | | |  |
Griffith R | 36.4 | | | 110 | 1 | 0 | 0 | 0 | | |
| 1985 | | 36:24:55 | | Buckingham F C & Griffith R | Penzance | 110 | | | | | |  |
Griffiths | 38.3 | | | 4 | 1 | 0 | 0 | 0 | | |
| 1955 | | 38:19:00 | | Griffiths & Beaman | Independent | 4 | | | | | |  |
Griffiths A J | 22.6 | | | 28 | 1 | 0 | 0 | 0 | | |
| 1991 | | 22:34:32 | | Griffiths A J & Ernst M | Aberfan | 28 | | | | | |  |
Griffiths C | 25.6 | | | 50 | 1 | 0 | 0 | 0 | | |
| 1991 | | 25:33:00 | | Horgan W & Griffiths C | Westel | 50 | | | | | |  |
Griffiths D | 22.9 | | | 49 | 1 | 0 | 0 | 0 | | |
| 1992 | | 22:54:20 | | Griffiths D & Prime R | Royal Engineers | 49 | | | | | |  |
Griffiths Daniel | 26.0 | | | 74 | 1 | 0 | 0 | 0 | | |
| 2019 | | 25:59:13 | | Woodley Sean & Griffiths Daniel | Chelmsford | 74 | | | | | |  |
Griffiths G H | 20.8 | | | 14 | 2 | 0 | 0 | 0 | | |
| 1978 | | 22:12:38 | | Griffiths G H & Mitchell N R | Royal Engineers | 23 | | | | | |  |
| 1981 | | 19:25:16 | | Wood T & Griffiths G H | Royal Engineers | 4 | | | | | |  |
Griffiths G R | 23.4 | | | 53 | 2 | 0 | 0 | 0 | | |
| 1984 | | 26:07:00 | | Griffiths G R & Maidment D | 4th New Forest N, V Scouts | 81 | | | | | |  |
| 1989 | | 20:43:29 | | Griffiths G R & Maidment D | Independent | 25 | | | | | |  |
Griffiths Jason | 33.3 | | | 101 | 2 | 0 | 0 | 0 | | |
| 2016 | | 36:26:26 | | Griffiths Jason & Marlow Duane | Army Canoe Union | 100 | | | | | |  |
| 2017 | | 30:06:44 | | Short James & Griffiths Jason | Royal Artillery 29 Commando Unit | 102 | | | | | |  |
Griffiths Miles | 32.0 | | | 41 | 3 | 0 | 0 | 0 | | |
| 2026 | | 32:02:29 | | Haines Tim & Griffiths Miles | Runcorn | 41 | | | | | |  |
| 2026 | | 32:02:29 | | Haines Tim & Griffiths Miles | Runcorn | 41 | | | | | |  |
| 2026 | | 32:02:29 | | Haines Tim & Griffiths Miles | Runcorn | 41 | | | | | |  |
Griffiths P | 25.6 | | | 19 | 1 | 0 | 0 | 0 | | |
| 1970 | | 25:33:50 | | Mooney E & Griffiths P | 3 Para | 19 | | | | | |  |
Griffiths Phillip | 26.3 | | | 48 | 1 | 0 | 0 | 0 | | |
| 2005 | | 26:18:17 | | Bateman Alan & Griffiths Phillip | British Fire Service College | 48 | | | | | |  |
Griffiths R | 26.5 | | | 33 | 3 | 0 | 0 | 0 | | |
| 1960 | | 31:08:00 | | Griffiths R & Tarbin G | 1st Green Jackets | 13 | | | | | |  |
| 1977 | | 20:42:00 | | Griffiths R & Lund M S | Newham | 11 | | | | | |  |
| 1994 | | 27:48:55 | | Stedman P J & Griffiths R | Worcester | 76 | | | | | |  |
Griffiths Richard | 27.4 | | | 99 | 1 | 0 | 0 | 0 | | |
| 2009 | | 27:21:11 | | McCann Edward & Griffiths Richard | RMA Sandhurst | 99 | | | | | |  |
Griffiths S A | 52.8 | | | 111 | 1 | 0 | 0 | 0 | | |
| 1994 | C2 | 52:51:05 | | Griffiths S A & Rowley G | Royal Marines Reserve - London | 111 | | | | | |  |
Grimble Roger (Teddington) | 21.4 | | | 29 | 1 | 0 | 0 | 0 | | |
| 2022 | | 21:24:54 | | Grimble Roger & Floodgate George | Royal Marines Kayak Association | 29 | | | | | |  |
Grimsey Damon | 25.7 | | | 77 | 1 | 0 | 0 | 0 | | |
| 2009 | | 25:41:01 | | Trussell Larissa & Grimsey Damon | Southampton | 77 | | | | | |  |
Grimshaw C A | 20.7 | | | 24 | 3 | 0 | 1 | 0 | | |
| 1984 | | 23:24:06 | | Harris K G & Grimshaw C A | 12th Ruislip Venture Scouts | 48 | | | | | |  |
| 1986 | | 21:02:36 | | Grimshaw C A & Harris K G | Viking (1st Walton on Thames) Service Crew | 23 | | | | | |  |
| 1995 | | 17:32:16 | | Pointer MJ & Grimshaw C A | Elmbridge | 2 | | | 1 | | Civilian |  |
Grob J | 21.6 | | | 5 | 1 | 0 | 0 | 0 | | |
| 1976 | | 21:34:50 | | Spang P & Grob J | CSEPEL Hungary | 5 | | | | | Civilian |  |
Grogan I | 22.8 | | | 35 | 2 | 0 | 0 | 0 | | |
| 1991 | | 23:30:12 | | Grogan I & Humphrey S | Royal Military Col. of Science | 37 | | | | | |  |
| 1995 | | 22:09:00 | | Grogan I & D'Albertanson S | RAF CA | 32 | | | | | RAF |  |
Gronborg Flemming | 24.1 | | | 65 | 1 | 0 | 0 | 0 | | |
| 2010 | | 24:05:24 | | Gronborg Flemming & Hoegh Vibeke | Independent & Kano Og Kajakklubben Limfjorden | 65 | | | | | |  |
Groom Laura | 29.4 | | | 34 | 1 | 0 | 0 | 0 | | |
| 2025 | | 29:23:48 | | Groom Laura & Haines Gwyn | Runcorn | 34 | | | | | |  |
Grose Richard | 25.9 | | | 47 | 1 | 0 | 0 | 0 | | |
| 2006 | | 25:53:42 | | Grose Richard & Nercessian Antony | Richmond | 47 | | | | | |  |
Grouteau Julien | 24.0 | | | 34 | 3 | 0 | 0 | 0 | | |
| 2006 | | 24:34:01 | | Grouteau Julien & Smallman Luke | Tower Hamlets | 33 | | | | | |  |
| 2007 | | 23:14:16 | | Grouteau Julien & Wall Matthew | Tower Hamlets | 37 | | | | | |  |
| 2008 | | 24:11:48 | | Galucka Klaudia & Grouteau Julien | Tower Hamlets | 31 | | | | | |  |
Grove P | 29.4 | | | 19 | 1 | 0 | 0 | 0 | | |
| 1966 | | 29:25:00 | | Grove P & Banks | 21 (Artists) | 19 | | | | | Reserve |  |
Grover Liam | 23.4 | | | 42 | 3 | 0 | 0 | 0 | | |
| 2010 | | 22:03:42 | | Grover Liam & Leeke Gary | Worcester | 32 | | | | | |  |
| 2012 | | 23:42:16 | | Grover Liam & Leeke Gary | Worcester | 34 | | | | | |  |
| 2015 | | 24:21:50 | | Gregory Paul & Grover Liam | Worcester | 59 | | | | | |  |
Groves H | 28.7 | | | 31 | 1 | 0 | 0 | 0 | | |
| 1967 | | 28:43:30 | | Jackson P & Groves H | RMA Sandhurst | 31 | | | | | |  |
Groves J M | 35.3 | | | 148 | 1 | 0 | 0 | 0 | | |
| 1987 | | 35:16:05 | | Groves J M & Canniffe M | D Coy 2 Wessex (V) | 148 | | | | | |  |