List of entrants for 2021 Race including those deferring from 2020 (623 to date 24 July 21)
| First Name | Surname | Running Club | Team |
| Gillian | Abbott | | |
| Sam | Abbott | | |
| Elaine | Adam-Harris | | |
| Oliver | Addis | | |
| Kelly | Ahmed | | |
| Scott | Ainsworth | | Team Powerhouse |
| Jeremy | Allen | | Team Avidity Science |
| Becky | Allen | | GULP |
| Craig | Allen | | |
| Karen | Anders | | |
| Alison | Andrews | | |
| David | Anstead | | |
| John | Appleby | | |
| Clare | Argar | | |
| Sarah | Armstrong | | |
| Andrew | Armstrong | | |
| Hazel | Ashurst | | Peak Fitness |
| Martin | Attwood | | |
| Jon | Ayres | | |
| Natalie | Babington | | |
| Stephen | Badcock | Abingdon AC | |
| charlotte | baker | | |
| Simon | Baldwin | | |
| Roland | Baldwin | | |
| Martin | Ball | | |
| Vivien | Ball | | |
| Helen | Bancroft | | |
| Rachel | Banham | | |
| Jimena | Barillas | | |
| Louise | Barker | | |
| Tony | Barnes | | |
| Antonia | Barnes | | |
| Charlie | Barr | | |
| Stuart | Barr | | |
| ray | barrett | | |
| Alex | Barrett | | |
| Gwenllian | Barrett | | |
| Alice | Bastin | | |
| Jordane | Bates | Bearbrook Running Club | |
| Stephen | Beard | | |
| Jessica | Beare | | |
| Mike | Beaumont | | |
| Daniel | Begley | | |
| Oliver | Benson | | |
| Anna | Bernstein | | |
| Don | Berry | | |
| Julia | Berry | | |
| Alistair | Birch | Lonely Goat RC | |
| gregor | black | | |
| sam | black | | |
| Tim | Blair | | |
| mark | blundell | | |
| Nathan | Blunden | Headington RR | |
| Thomas | Bowen | | The James Figg |
| Richard | Bowley | | |
| Lauren | Bowman | | |
| David | Bowman | | |
| Jason | Boxall | | |
| Phillip | Boyud-Leslie | | |
| Lucy | Bradford | | Team Thomley |
| Roch | Briscoe | | |
| Barbara | Brooke | | |
| Mike | Brotherston | | |
| Sophie | Brotherston | | |
| Nicola | Buckland | | |
| Fraser | Bullen | | OFRS |
| Adrian | BUNCE | Kidlington Running Club | |
| Jacob | Burgess | | |
| Richard | Burkimsher | | Cross Keys |
| Michael | Burns | | |
| Stuart | Burtenshaw | | |
| Katrina | BUTCHER | | |
| Zoe | Butler | | |
| Kevin | Byrne | Headington RR | |
| Elly | Cahill | | |
| Joni | Cameron | | |
| Fergus | Campbell | Headington RR | |
| Andrew | campbell | | GULP |
| Anna | Capitani | | Thomley |
| James | Cardwell | | Team Avidity Science |
| Sally | Carr | | |
| Thalia | Carr | Kidlington Running Club | |
| Angela | Carroll | | |
| Phil | Carter | | |
| Andrea | Cattell | | |
| Nicola | Challis | | |
| Mark | Challis | | |
| Amanda | Chandler | | |
| Cassy | Childs | | |
| Mike | Chipping | Bristol and West AC | |
| steve | chown | | |
| Amanda | Clarke | | |
| Will | Cleare | | |
| Lauren | Clowes | | |
| David | Coates | Cherwell Runners & Joggers | |
| Charles | Coldham | | Team Thomley |
| Kim | Coleman | | |
| Jake | Collinge | | |
| Robin | Collins | Headington RR | |
| Emily | Colson | | |
| Finley | Colverson-Martin | Bicester AC | |
| Simeon | Coney | | GULP |
| Amara | Coney | | GULP |
| simon | connell | | |
| Kerri | Constable | | |
| Howard | Cook | Headington RR | |
| Sarah | Cornish | | |
| Alex | Cornish | | |
| Darren | Corsby | Bearbrook Running Club | |
| Matthew | Costar | | |
| Hans Nobel | Coucheron-Aamot | | |
| Charlotte | Cousins | | |
| andrew | craig | | |
| Jay | Critoph | | |
| Sam | Crockford | | |
| Sam | Crockford | | |
| Guy | Cunningham | | |
| Jennifer | Cunningham | | GULP |
| Jason | Cunningham | | GULP |
| Christopher | Curnick | | GULP |
| Phil | Curtis | | Billgofast |
| Sarah | Cuthbert | Handy Cross Runners | |
| Zak | Dadswell | Ealing Eagles Running Club | |
| Ralph | Dadswell | Ealing Eagles Running Club | |
| Henry | Dadswell | Ealing Eagles Running Club | |
| Carl | Dalkin | | |
| tyler | daly | | |
| Aaron | Daly | | |
| William | Dalziel | | |
| Paul | de Lusignan | | |
| Ginny | de Lusignan | | |
| Sarah | Del Tozzotto | | |
| Helen | Denny | | |
| Jo | Dent | | |
| Sophie | Dickerson | | GULP |
| Mark | Dickinson | | |
| Michelle | Dickinson | | |
| Molly | Dickinson | | |
| Jonathan | Dickinson | | |
| Chris | Dite | | |
| Ann | Dite | | |
| martyn | dolman | | |
| vanessa | dolman | | |
| Chris | Dolphin | | Team Ginger |
| Sam | Dooley | | |
| Paul | Douglass | | |
| Jonathan | Down | | |
| Will | Driscoll | | |
| Dominic | Drummond | | |
| Christopher | Duckham | | Whorton Electronics |
| Natasha | Duckham | | |
| Rob | Dukes | | GULP |
| Jon | Durrant | | Oxford Tri |
| James | Dutton | | Thomley |
| Faye | Dutton | | Thomley |
| Amy | Dutton | | Thomley |
| Joe | Dutton | | Thomley |
| Ella | Dutton | | Thomley |
| Marc | Eaton | | |
| Luke | Eaton | | |
| Tom | Eaton | | |
| Phil | Edgar | | Thame Runners |
| Kate | Edinburgh | | Team Avidity Science |
| ian | edwards | | |
| Tom | Eggleton | | |
| Nikki | Elliott | Thame Runners | |
| John | Elmer | | |
| Katie | Elmer | | |
| Libby | Elmer | | |
| Linda | Emery | | |
| Mark | Evans | | |
| Matthew | Evans | | |
| Deborah | Everingham | | |
| Kerry | Eyre | | |
| Chloe | Farnborough | | |
| Jenny | Farnborough-Brown | | |
| Susanna | Fawcett | | |
| Julie | Fell | | |
| Andrew | Fell | | |
| Thomas | Fell | Vale Of Aylesbury AC | |
| Jonathon | Fell | | |
| John | Fenning | Headington RR | |
| Roger | Fenwick | | |
| Michelle | Fenwick | | |
| Hugh | Fickling | | |
| james | fickling | Maidenhead AC | |
| Mandie | Fickling | | |
| Ella | Fickling | | |
| Tim | Field | | |
| Cristina | Fisher | | |
| Kate | Fletcher | | |
| Sam | Flitney | | |
| Chris | Flitney | | |
| Bethany | Forrest | | |
| Kim | Forsyth | Thame Runners | |
| Michelle | Forsyth | | |
| Jules | Fox | | |
| Kirstin | Fraser | | |
| Al | French | | |
| Tais | Fukushima | | |
| Anthony | Gabb | | |
| Charli | Gailor | | |
| Warren | Garcia | | |
| Patrick | Gardiner | | |
| Jean | Garrett | Bearbrook Running Club | |
| Victoria | Gees-Thornton | On the Run Aylesbury | |
| Rachel | George | | |
| Marco | Giacomelli | | |
| Ashley | Gibson | | |
| Anne | Gibson | | |
| Helena | Gilbrook | | Team Avidity Science |
| Amanda | Gladwin | | |
| Leonie | Glasson | | |
| Andrew | Gledhill | Alchester Running Club | |
| Lisa | Glover | | |
| Natalie | Glover | | |
| Andy | Godman | | Team Powerhouse |
| Suzanne | Godman | | |
| Becky | Golder | | |
| Jo | Goldie-Brammer | | Cross keys |
| Kirsty | Goldie-Brammer | | Cross keys |
| micheal | goodman | | |
| Nick | Gowens | | |
| TREVOR | Grace | | |
| Sue | Graham | | |
| Tracey | Grannum-Harris | | |
| John | Green | Witney Road Runners | |
| Barry | Green | | |
| Lewis | Greenall | | |
| Jane | Greenfield | | GULP |
| Kate | Gregory | | |
| Catherine | Grose | | Team Powerhouse |
| Katy | Groves | | |
| Kian | Guerzoni | Shepshed Running Club | |
| Jason | Guest | | |
| Karen | Guest | | |
| Fiona | Guy | | |
| Tom | Guy | | |
| David | Haggart | | |
| Zoe | Hall | | |
| Nathan | Hallett | | |
| Megan | Hard | | |
| Katie | Harman | | |
| Liz | Harman | | |
| Tom | Harold | | |
| Fiona | Harold | | |
| Stephen | Harper | | |
| Matthew | Harper | | |
| Peter | Harris | | Team Avidity Science |
| Melissa | Harris | | |
| Sarah | Harris | | GULP |
| Pascal | Harris | | GULP |
| Seamus | Harrison | | Thame the Disc |
| Simon | Hart | Wycombe Phoenix Harriers & AC | |
| Stephen | Haynes | | |
| Robert | Head | | |
| Matthew | Hellyer | | |
| Emma | Helmer | | |
| Eloise | Hepple | | |
| Peter | Herring | | |
| Adam | Higgs | | |
| Lindsey | Hobbs | | |
| sally | hobson | | |
| Madelaine | Hodson | | |
| patrick | hogan | | |
| stuart | holding | | |
| Millie | Holdsworth | | |
| Ben | Holland | | |
| Rebecca | Honour | On the Run Aylesbury | |
| Mark | Hooper | | |
| Michelle | Hopcroft | | Oakley Runners |
| Paul | Hopwood | | |
| Sharon | Houchin | | Team Powerhouse |
| Wayne | Houchin | | Team Powerhouse |
| Tom | House | | |
| Amy | Howard | | |
| Corinna | Hughes | | |
| Richard | Hughes | | |
| david | hunt | | |
| tracy | hunt | | |
| Caroline | Hunter | | |
| David | Iliffe | | |
| Alex | Ingell | | |
| Tom | Ingell | | |
| Abi | Ingell | | |
| Vicky | Ireson | | |
| Cosette | Jackson | | |
| Rachel | Jeacock | Kidlington Running Club | |
| Simon | Jenkins | Hazlemere Runners | |
| Laura | Jennings | | |
| Fred | Johnson | | GULP |
| Rex | Johnson | | GULP |
| Dan | Johnson | | GULP |
| Victoria | Jones | | |
| Laura | Jones | | Team Thomley |
| Lauren | Jones | | |
| Keaton | Jones | | |
| Bryn | Jones | | |
| Timothy | Jones | | |
| Huw | Jones | Thame Runners | |
| Helen | Joy | | |
| Evelyn | Kaluza | | |
| Jack | Keen | | |
| Tom | Kelly | | |
| Steve | Kelly | | |
| Marc | Kelsey | | GULP |
| Carol | Kendall | | |
| Sara | Kendrick | | |
| Leah | Kendry | | |
| Bas | Kennedy | | OnTheRun Aylesbury |
| Emily | Kerrigan | | |
| Amy | Kerstein | | |
| Paul | Kittel | | |
| Michael | Knight | | |
| Elizabeth | Knott | | |
| Sarah | Koch de Gooreynd | | |
| Hannah | Kornicka-McCracken | | |
| Darren | Kuypers | | |
| Simon | Lacey | | |
| Callum | Lafferty | | |
| Marcus | Lamb | | |
| Aaron | Lamb | Thame Runners | |
| Tracy | Lambert | | |
| Claire | Lambert | | |
| Victoria | Lancaster | | |
| James | Langley | | |
| Steve | Large | | |
| Amba | Latimer | | Team Powerhouse |
| Callum | lavender | | |
| Wayne | Lawley | | |
| Andrew | Lawrence | | |
| Kirsten | Lawton | | |
| Mark | Laxton | | |
| Simon | Lazaruk | | |
| Sarah | Ledingham | Headington RR | |
| Lynda | Lee | | |
| Angelica | Lee | | |
| Christopher | Lembke | | |
| Mary | Lever | | |
| sheryl | lewis | | |
| Andrew | Lewis | | |
| Erica | Lewis | | |
| Lizzie | Lewis | | |
| Julien | Lhomme | Headington RR | |
| Kate | Lichfield | | |
| Mark | Little | | |
| Kay | Little | | |
| Lucinda | Lloyd | | |
| Michelle | Loftus | | |
| Linda | Longshaw | | |
| Hasitha | Loolbadduwa | | Team Avidity Science |
| Graham | Lougher | | Team Powerhouse |
| Liam | Louth | | Team Powerhouse |
| Nick | Lowen | | |
| David | Lowen | | |
| Luis | Lupu | | |
| Kay | Lydall | | |
| Chris | Mabbott | | |
| Clare | Macbeth | | |
| Charlie | Macbeth | | |
| Sharon Alice | Maisey | | |
| Liane | Maltby | | |
| paul | marsh | | |
| Harriet | Marsh | | |
| Ana | Masiero | | Wharton Electronics |
| Susan | Maskell | | |
| Lucy | Mason | | |
| Jade | Mason | | |
| Holly | Mason | | Team Avidity Science |
| Sophie | Massey | | |
| Richard | Mather | | |
| Simon | Mather | | |
| karl | Matthews | | EVO TRI CLUB |
| Christopher | Mauger | | |
| Evie | McCleary | | |
| Peter | McDermott | | Haddenham Runners |
| Tim | McDougle | | Team Avidity Science |
| Jo | McGrath | | |
| Steve | McKeown | | |
| Katie | Mellor | | |
| Helen | Meredith | | |
| David | Meredith | | |
| Katie | Merrett | | |
| Emma | Mitchell | | |
| Wendy | Monaghan | | |
| Michelle | Morgan | | |
| William | Morris | | |
| Jonathan | Morris | | |
| Colin | Morton | | Richardsons |
| Alex | Moss | | – |
| Neil | Muir | Maidenhead AC | |
| Chris | Mullen | | |
| Gemma | Murray | | |
| Francesca | Murray-Smith | | |
| Kulthum | Mustapha | | GULP |
| Chris | NEASHAM | | |
| Coral | Needham | | Team Powerhouse |
| Jack | Needham | | |
| James | Neilson | | |
| Peter | Neville | | |
| Olivia | Neville | | |
| Kate | Newman | | |
| Thomas | Newman | | |
| Clare | Nickless | | |
| Edward | Nix | | |
| Alison | Noakes | | |
| Iain | Noakes | | |
| Andrea | Noble | | |
| Michael | Oatway | | |
| Jade | O’brien | | The James Figg |
| Laura | O’Callaghan | | |
| Kate | ODowd | | |
| Rhianne | O’Flanagan | | |
| Darren | Oliver | | Team Powerhouse |
| Kate | Orwin | | |
| Hannah | Owen | | |
| Emily | Packham | | |
| James | Padginton | | |
| Richard | Palmer | 100 Marathon Club | |
| Emma | Parfitt | | |
| Robin | Parish | | |
| Nigel | Parke | | |
| Nathen | Pavey | | |
| Emma | Payne | | |
| Richard | Payne | | |
| Ian | Pearce | | |
| Nicholas | Perry | | |
| Alexandra | Perry | | |
| Marigold | Peters | | |
| Hedley | Phillips | CLC Striders | |
| Jackie | Phippen | | |
| Joseph | Phippen | | |
| Elaine | Pickup | | |
| Samuel | Pickup | | |
| Jonathan | Pickup | | |
| Victoria | Plater | | Team Avidity Science |
| Christian | Plumb | | |
| Hannah | Pope | | |
| Chrissy | Portnall | | Team Avidity Science |
| Rebecca | Powell | | |
| Sean | Poynter-Smith | | Pentangle Technology |
| Neil | Preddy | Woodstock Harriers AC | |
| Neil | Preddy | Woodstock Harriers AC | |
| Tom | Preskett | Woodstock Harriers AC | |
| Daniel | Preston | | |
| Karen | Price | | Team Powerhouse |
| Richard | Priest | | |
| Samantha | Probets | | |
| Lowri | Puttick | | |
| Alexandra | Pyle | | |
| Trevor | Pyne | | |
| Tania | Quezado | | |
| Lu | Rahman | Kidlington Running Club | |
| Rachel | Rahman | Kidlington Running Club | |
| Ian | Ralls | | CPM |
| Hannah | Redwood | | |
| Ben | Reeve | | |
| Sheila | Reeve | | |
| Claire | Reid | | |
| John | Reilly | | |
| Tanya | Rice | | |
| Jonathan | Rice | | |
| Rachel | Richards | | |
| Alison | Richardson | | |
| Jacob | Riddleston | | |
| Philip | Rizza | | |
| Tom | Robards | Thame Runners | |
| Ian | Roberts | On the Run Aylesbury | |
| Amy | Roberts | | |
| Penelope | Roberts | | |
| David | Roberts | | |
| Kelvin | Rogers | | |
| Alun | Rowe | | |
| Ben | Rowe | Windsor Slough Eton & Hounslow AC | |
| William | Rumsey | | |
| Katherine | Rumsey | | |
| Andrea | Rushton | | |
| seamus | russell | | |
| Anwen | russell | | |
| Matt | Russell | | |
| Kerry | Scott | | |
| Richard | Scott | | |
| joshua | scott | | Team Powerhouse |
| joanne | scrivener | | Team Powerhouse |
| Bethany | Seale | | |
| Clare | Seed | | |
| Andrew | Sewell | | |
| Steve | Shannon | | |
| Hayley | Sheppard | Bearbrook Running Club | |
| Ronald | Simmonds | Bearbrook Running Club | |
| Oonagh | Simpson | | Team Avidity Science |
| Christopher | Simpson | | |
| Samantha | Simpson | | |
| Mark | Singleton | | |
| Robin | Skilling | | GULP |
| Sangita | Skilling | | GULP |
| sean | slade | | |
| Deb | Smith | | |
| James | Smith | | |
| Luke | Smith | | |
| Joanne | Smith | Kidlington Running Club | |
| Clare | Smith | | |
| Alistair | Smith | Frome Running Club | |
| Angus | Smith | | GULP |
| kitty | smith | | |
| Gareth | Snelson | Redway Runners | |
| Suzie | Snelson | | Buckingham and Stowe Running Club |
| Paul | Snelson | | |
| Jenna | Sonnenberg | | |
| Lucy | Spanswick | | Cross keys |
| Tracey | Sparkes | | |
| Robert | Sparks | | |
| Vivienne | Sparks | | |
| Joe | Spencer | | |
| Thomas | Spencer | | |
| Becky | Spencer-Davies | | |
| Drew | Spicer | | |
| Emma | Spink | | |
| Rachel | Stafford | | Indies Thame Runners |
| Kayleigh | Stanbury | | |
| Laura | Standen | | |
| Marcus | Stanway-Williams | | |
| Philippa | Stenning | | |
| Amanda | Stevens | | |
| James | Stevens | | |
| Lisa | Stevens | | |
| Anthony | Stewart | | |
| James | Stock | | Team Avidity Science |
| Sonia | Storey | | Cuddington Runners |
| Paul | Storey | | Cuddington Runners |
| Melanie | Strachan | | |
| Jamie | Strachan | | |
| Gary | Stratford | Leighton Buzzard Athletic Club | |
| Emily | Stringfellow | | |
| Anna | Subesinghe | | |
| Adrian | Summons | | |
| Louis | Summons | | |
| Saz | Sunthareswaran | | GULP |
| Jamie | Surman | | |
| Joanne | Swainston | | |
| Ron | Swanson | | |
| Ron | Swanson | | |
| Phil | Swarbrick | Abingdon AC | |
| Lynne | Taberer | | |
| Nicky | Tanner | | |
| Philippa | Tate | | |
| Andrew | Tattersfield | | |
| helen | taylor | | |
| Derek | Taylor | | |
| Yee-King | Tham | | |
| Stephen | Thomas | | Team Avidity Science |
| Jocky | Threlfall | | |
| Tom | Threlfall | | |
| Mark | Timson | | |
| Emma | Timson | | |
| Ian | Tindley | | |
| Fiona | Toney | | |
| Andrew | Trainer | | |
| Natalie | Treamer | | |
| simon | tremlin | | |
| kate | tremlin | | |
| charlotte | tremlin | | |
| Jemma | Tunnicliffe | | |
| Gareth | Tupper | | |
| Gareth | Tupper | | |
| Angela | Turnbull | Bearbrook Running Club | |
| Alexa | Varah | | |
| Ashley | Varnam | | |
| Lucy | Vickers | | |
| Nicky | Wade | | |
| Catherine | Wainwright | White Horse Harriers | |
| Andy | Wainwright | | |
| Karina | Waite | | |
| Chris | Waite | | |
| Emma | Walker | | |
| David | Walker | | |
| Jack | Wallace | | |
| Daryl | Walter | | |
| Christopher | Walton | | |
| Roger | Ward | | |
| Sharon | Warner | | |
| David | Watkins | | |
| Lucy | Watts | | |
| Harvey | Waywell | | |
| Christian | Waywell | | |
| Jo | Webb | | Sandman Striders |
| Daniel | Weller | | |
| Colette | Welsted | | |
| Joanne | West | | Team Avidity Science |
| Gabrielle | Westhead | | Pentangle Technology |
| Jo | Wharton | | Wharton electronics |
| Alastair | Wharton | | Wharton Electronics |
| Sarah | Whatman | | |
| Dominic | Whatman | | |
| Lawrence | Wiffin | | |
| Martyn | Wiggins | | Team Thomley |
| Sarah | Williams | | |
| Robert | Williams | | |
| Anne | Williams | | |
| Emma | Williams | | |
| Ollie | Williams | | |
| Daniel | Williams | | |
| Emily | Williams | | |
| Daniel | Williams | Thame Runners | |
| James | Willingham | | |
| Simon | Willis | | Lucy Electric |
| Isabella | Willsher | | |
| Madi | Wilmshurst | | |
| Wendy | Wilson | | |
| Guy | Wilson | | |
| Josiane | Wilson | | Team Avidity Science |
| Peter | Wilson | | |
| Beth | Wiltshire | | |
| Kristian | Winslade | | |
| Dupe | Witherick | | |
| Natalie | Wood | | |
| Alan | Wood | | |
| Chloe | Wood | | |
| Abi | Woodliffe-Thomas | | |
| Richard | Worker | | |
| David | Wright | | |
| Sarah | Wythe | | |
| Waifan | Yeung | | GULP |