| Reading Roadrunners | 137 | 585 | Reading Roadrunners home page  |
| Reading Joggers | 82 | 786 | Reading Joggers home page |
| Tri2O Triathlon Club | 53 | 226 | Tri2O Triathlon Club home page |
| Bracknell Forest Runners | 29 | 32 | Bracknell Forest Runners home page |
| Reading AC | 28 | 144 | Reading AC home page |
| Vegan Runners | 21 | 95 | Vegan Runners home page |
| Lonely Goat RC | 20 | 219 | Lonely Goat RC home page |
| Hatch Warren Runners | 14 | 18 | Hatch Warren Runners home page |
| Didcot Runners | 13 | 14 | Didcot Runners home page |
| Datchet Dashers | 12 | 13 | Datchet Dashers home page |
| Maidenhead AC | 12 | 19 | Maidenhead AC home page |
| Thames Valley Triathletes | 11 | 22 | Thames Valley Triathletes home page |
| UK parkrun tourists | 11 | 11 |
|
| Berkshire Hash House Harriers | 11 | 163 |
|
| Newbury AC | 11 | 16 | Newbury AC home page |
| parkrun World tourists | 10 | 37 |
|
| Marlow Striders | 10 | 10 | Marlow Striders home page |
| John Lewis Partnership RC | 10 | 21 |
|
| Burnham Joggers | 10 | 19 | Burnham Joggers home page |
| Basingstoke & Mid Hants AC | 9 | 9 | Basingstoke & Mid Hants AC home page |
| Sandhurst Joggers | 9 | 12 | Sandhurst Joggers home page |
| Shinfield Running Club | 9 | 59 | Shinfield Running Club home page |
| Cove Joggers | 9 | 10 | Cove Joggers home page |
| Sweatshop Running Community | 9 | 57 | Sweatshop Running Community home page |
| Fetch Everyone RC | 9 | 10 | Fetch Everyone RC home page |
| 26.2 RRC | 8 | 8 | 26.2 RRC home page |
| Chineham Park Running Club | 8 | 9 | Chineham Park Running Club home page |
| Abingdon AC | 7 | 7 | Abingdon AC home page |
| Ealing Eagles Running Club | 7 | 7 | Ealing Eagles Running Club home page |
| British Airways AC | 7 | 7 | British Airways AC home page |
| Newbury Runners | 7 | 7 |
|
| Portsmouth Joggers Club | 7 | 7 | Portsmouth Joggers Club home page |
| Headington RRC | 6 | 7 | Headington RRC home page |
| Lordshill Road Runners | 6 | 6 | Lordshill Road Runners home page |
| Sutton Runners | 6 | 6 | Sutton Runners home page |
| Muddy Runners | 6 | 8 | Muddy Runners home page |
| Stragglers | 6 | 6 | Stragglers home page |
| CSSC Sports & Leisure | 5 | 16 | CSSC Sports & Leisure home page |
| Hi-5 Runners | 5 | 6 | Hi-5 Runners home page |
| On The Run Aylesbury | 5 | 5 | On The Run Aylesbury home page |
| Ealing, Southall & Middlesex AC | 5 | 5 | Ealing, Southall & Middlesex AC home page |
| UK Mudd Queens | 5 | 5 | UK Mudd Queens home page |
| Alchester RC | 4 | 4 | Alchester RC home page |
| Cruisers RC Woking | 4 | 4 | Cruisers RC Woking home page |
| NHS Couch to 5k | 4 | 4 | NHS Couch to 5k home page |
| Witney Road Runners | 4 | 4 | Witney Road Runners home page |
| Slinn Allstars | 4 | 17 | Slinn Allstars home page |
| Finch Coasters | 4 | 6 | Finch Coasters home page |
| Flyers Southend | 4 | 4 | Flyers Southend home page |
| Harwell Harriers | 4 | 5 | Harwell Harriers home page |
| Kings Heath Running Club | 4 | 9 | Kings Heath Running Club home page |
| Overton Harriers & AC | 3 | 3 | Overton Harriers & AC home page |
| RunWallingford | 3 | 3 |
|
| Watford Joggers | 3 | 3 | Watford Joggers home page |
| Evolution Triathlon Club | 3 | 8 | Evolution Triathlon Club home page |
| Bracknell AC | 3 | 3 | Bracknell AC home page |
| Fleet & Crookham AC | 3 | 3 | Fleet & Crookham AC home page |
| Tadley Runners | 3 | 4 | Tadley Runners home page |
| Ordnance Survey Runners | 3 | 3 | Ordnance Survey Runners home page |
| Almost Athletes | 3 | 8 | Almost Athletes home page |
| Reading Storm Chasers | 3 | 11 |
|
| Massey Ferguson RC | 3 | 3 | Massey Ferguson RC home page |
| Run Mummy Run | 3 | 7 | Run Mummy Run home page |
| Serpentine RC | 3 | 5 | Serpentine RC home page |
| Poole AC | 3 | 3 | Poole AC home page |
| Team Kennet | 3 | 5 | Team Kennet home page |
| Wargrave Runners | 3 | 3 | Wargrave Runners home page |
| Thames Turbo Triathlon | 3 | 3 | Thames Turbo Triathlon home page |
| Clapham Chasers RC | 2 | 4 | Clapham Chasers RC home page |
| Defence Sports & Recreation | 2 | 3 | Defence Sports & Recreation home page |
| Sale Harriers Manchester | 2 | 2 | Sale Harriers Manchester home page |
| Black Pear Joggers | 2 | 2 | Black Pear Joggers home page |
| Waverley Harriers | 2 | 2 | Waverley Harriers home page |
| Metros RC | 2 | 2 | Metros RC home page |
| Styal Running Club | 2 | 2 | Styal Running Club home page |
| Fulham RC | 2 | 4 | Fulham RC home page |
| Steel City Striders RC | 2 | 4 | Steel City Striders RC home page |
| ParkrunnerPB | 2 | 11 | ParkrunnerPB home page |
| Run 4 MS | 2 | 2 | Run 4 MS home page |
| Striders of Croydon AC | 2 | 2 | Striders of Croydon AC home page |
| Moneynest.co.uk Rhino Runners | 2 | 29 |
|
| Badass Mother Runners | 2 | 2 |
|
| Tiptree Road Runners | 2 | 2 | Tiptree Road Runners home page |
| Chiltern Church Runners | 2 | 2 | Chiltern Church Runners home page |
| Derek Zoolander Centre for Kids Who Can't Run Good | 2 | 2 | Derek Zoolander Centre for Kids Who Can't Run Good home page |
| Pyrford Puffers | 2 | 2 |
|
| St Albans Striders | 2 | 2 | St Albans Striders home page |
| Beckenham RC | 2 | 2 | Beckenham RC home page |
| Frimley Flyers | 2 | 3 | Frimley Flyers home page |
| Redingensians Rugby Club | 2 | 2 | Redingensians Rugby Club home page |
| North Bolton Runners | 2 | 3 |
|
| Hart Road Runners | 2 | 2 | Hart Road Runners home page |
| Pitsea RC | 2 | 2 | Pitsea RC home page |
| Knowle and Dorridge Running Club | 2 | 4 | Knowle and Dorridge Running Club home page |
| Dagenham 88 Runners | 2 | 2 | Dagenham 88 Runners home page |
| Axe Valley Runners | 2 | 2 | Axe Valley Runners home page |
| Bedford Run Club | 2 | 2 |
|
| Hayes & Harlington Road Runners | 2 | 2 | Hayes & Harlington Road Runners home page |
| Ilford AC | 2 | 2 | Ilford AC home page |
| Camberley & District AC | 2 | 2 | Camberley & District AC home page |
| Victory AC | 2 | 2 | Victory AC home page |
| Stubbington Green Runners | 2 | 2 | Stubbington Green Runners home page |
| Teignbridge Trotters | 2 | 2 | Teignbridge Trotters home page |
| Didcot Hash House Harriers | 2 | 2 | Didcot Hash House Harriers home page |
| SHAEF Shifters | 2 | 2 | SHAEF Shifters home page |
| Windle Valley Runners | 2 | 2 | Windle Valley Runners home page |
| Blackwater Valley Runners | 2 | 2 | Blackwater Valley Runners home page |
| Harpenden's Junior Runners | 2 | 2 | Harpenden's Junior Runners home page |
| Olney Runners AC | 2 | 2 | Olney Runners AC home page |
| Wokingham Canoe Club | 2 | 2 | Wokingham Canoe Club home page |
| UKRunChat Running Club | 2 | 2 | UKRunChat Running Club home page |
| Tadworth AC | 2 | 2 | Tadworth AC home page |
| SN Orienteering Club | 2 | 22 | SN Orienteering Club home page |
| Alton Runners | 2 | 2 | Alton Runners home page |
| Taf Running & Orienteering | 2 | 2 | Taf Running & Orienteering home page |
| March AC | 2 | 2 | March AC home page |
| Windsor, Slough, Eton & Hounslow AC | 2 | 2 | Windsor, Slough, Eton & Hounslow AC home page |
| Birmingham Running Athletics and Triathlon Club | 2 | 2 | Birmingham Running Athletics and Triathlon Club home page |
| Les Croupiers RC | 2 | 2 | Les Croupiers RC home page |
| Orion Harriers | 2 | 5 | Orion Harriers home page |
| UK Lunatics | 2 | 2 | UK Lunatics home page |
| Clapham Pioneers | 2 | 2 | Clapham Pioneers home page |
| Epsom Allsorts | 2 | 2 | Epsom Allsorts home page |
| British Military Fitness | 2 | 5 | British Military Fitness home page |
| Hook Runners | 2 | 2 | Hook Runners home page |
| Westbourne Running Club | 2 | 2 | Westbourne Running Club home page |
| Farnham Runners | 2 | 3 | Farnham Runners home page |
| Eastleigh RC | 2 | 2 | Eastleigh RC home page |
| Altrincham and District AC | 2 | 2 | Altrincham and District AC home page |
| Varsity Kudus AC | 2 | 3 |
|
| RbR Club | 2 | 5 | RbR Club home page |
| University of Birmingham Cross Country & AC | 1 | 1 | University of Birmingham Cross Country & AC home page |
| Neath Harriers | 1 | 1 | Neath Harriers home page |
| Harpenden Arrows Running Club | 1 | 1 | Harpenden Arrows Running Club home page |
| DSC AC | 1 | 1 |
|
| North Herts RRC | 1 | 1 | North Herts RRC home page |
| Hardley Runners | 1 | 1 | Hardley Runners home page |
| Dawlish Coasters | 1 | 1 | Dawlish Coasters home page |
| Desborough and Rothwell Running Club | 1 | 1 | Desborough and Rothwell Running Club home page |
| Rebel Runners Nottingham | 1 | 1 | Rebel Runners Nottingham home page |
| Run Things Run Club | 1 | 15 | Run Things Run Club home page |
| Barnet and District AC | 1 | 1 | Barnet and District AC home page |
| Tri London | 1 | 1 | Tri London home page |
| Berkshire Orienteers | 1 | 18 |
|
| London City Athletics Club | 1 | 2 | London City Athletics Club home page |
| East London Runners | 1 | 1 | East London Runners home page |
| Liverpool RC | 1 | 1 | Liverpool RC home page |
| Wadhurst Runners | 1 | 1 | Wadhurst Runners home page |
| Redway Runners | 1 | 8 | Redway Runners home page |
| Centurion RC | 1 | 1 | Centurion RC home page |
| Petts Wood Runners | 1 | 3 | Petts Wood Runners home page |
| Purple Patch Runners | 1 | 1 | Purple Patch Runners home page |
| University of West England | 1 | 1 | University of West England home page |
| Fuddy Muckers | 1 | 1 |
|
| Garden City Runners | 1 | 1 | Garden City Runners home page |
| Spa Striders RC | 1 | 1 | Spa Striders RC home page |
| Ravenstone Runners | 1 | 1 | Ravenstone Runners home page |
| St Austell Athletes Running Club | 1 | 1 |
|
| Lancing Eagles RC | 1 | 1 |
|
| Dacorum & Tring AC | 1 | 1 | Dacorum & Tring AC home page |
| Devizes Running club | 1 | 1 | Devizes Running club home page |
| Reading Rascals | 1 | 1 | Reading Rascals home page |
| Fitstuff | 1 | 1 | Fitstuff home page |
| Compile, RUN, Debug | 1 | 1 | Compile, RUN, Debug home page |
| Bideford AAC | 1 | 1 | Bideford AAC home page |
| Wee County Harriers | 1 | 1 | Wee County Harriers home page |
| Middleton Harriers AC | 1 | 1 | Middleton Harriers AC home page |
| Itchen Spitfires Running Club | 1 | 1 | Itchen Spitfires Running Club home page |
| Guildford & Godalming AC | 1 | 1 | Guildford & Godalming AC home page |
| Eryri Harriers | 1 | 2 | Eryri Harriers home page |
| Running Sisters Network | 1 | 1 | Running Sisters Network home page |
| Stopsley Striders Jogging Club | 1 | 7 | Stopsley Striders Jogging Club home page |
| Tyne Bridge Harriers | 1 | 2 | Tyne Bridge Harriers home page |
| Busrungroup | 1 | 1 |
|
| Carn Runners of Holman | 1 | 2 | Carn Runners of Holman home page |
| Team Bath AC | 1 | 1 |
|
| Geelong Cross Country Club | 1 | 1 | Geelong Cross Country Club home page |
| viewtube runners | 1 | 1 | viewtube runners home page |
| Forest of Dean AC | 1 | 1 | Forest of Dean AC home page |
| Aberystwyth AC | 1 | 1 | Aberystwyth AC home page |
| Vegetarian Cycling and AC | 1 | 1 | Vegetarian Cycling and AC home page |
| South West Road Runners | 1 | 1 | South West Road Runners home page |
| 5 Star Boot Camps | 1 | 1 | 5 Star Boot Camps home page |
| Coopervision Running Club | 1 | 1 |
|
| Dockside Runners | 1 | 1 | Dockside Runners home page |
| Ranelagh Harriers | 1 | 1 | Ranelagh Harriers home page |
| Handy Cross Runners | 1 | 1 | Handy Cross Runners home page |
| Radley AC | 1 | 1 | Radley AC home page |
| Westbury Run England Group | 1 | 2 | Westbury Run England Group home page |
| Bodmin Road Runners | 1 | 4 | Bodmin Road Runners home page |
| No Need For Speed | 1 | 1 |
|
| Birch Hill Primary School | 1 | 1 |
|
| Wimbledon Windmilers | 1 | 1 | Wimbledon Windmilers home page |
| Wellingborough & District AC | 1 | 1 | Wellingborough & District AC home page |
| 100 Marathon Club | 1 | 2 | 100 Marathon Club home page |
| Spirit Of Monmouth RC | 1 | 1 | Spirit Of Monmouth RC home page |
| Thornton Cleveleys | 1 | 1 | Thornton Cleveleys home page |
| CGI IT UK Ltd | 1 | 2 |
|
| Collingwood AC | 1 | 1 | Collingwood AC home page |
| Trail Running Association | 1 | 1 | Trail Running Association home page |
| Running Colchester | 1 | 1 |
|
| Walking at parkrun | 1 | 1 |
|
| Wreake Runners | 1 | 1 | Wreake Runners home page |
| Swim-1st Triathlon Club | 1 | 1 | Swim-1st Triathlon Club home page |
| Renegade Runners | 1 | 1 |
|
| Great Western Runners | 1 | 1 | Great Western Runners home page |
| Hungerford Hares | 1 | 1 | Hungerford Hares home page |
| TRiKS | 1 | 1 | TRiKS home page |
| parkrun for people living with asthma | 1 | 7 | parkrun for people living with asthma home page |
| Crystal Palace Fun Runners | 1 | 1 | Crystal Palace Fun Runners home page |
| Rand Athletic Club | 1 | 5 |
|
| GoodGym | 1 | 1 | GoodGym home page |
| Backpackersclc | 1 | 1 | Backpackersclc home page |
| Wootton Road Runners | 1 | 1 | Wootton Road Runners home page |
| Southampton Triathlon Club | 1 | 1 | Southampton Triathlon Club home page |
| Hercules Wimbledon AC | 1 | 1 | Hercules Wimbledon AC home page |
| City of Portsmouth AC | 1 | 1 | City of Portsmouth AC home page |
| Walking at parkrun | 1 | 1 |
|
| Irvine Running Club | 1 | 2 | Irvine Running Club home page |
| Cambridge and Coleridge AC | 1 | 8 | Cambridge and Coleridge AC home page |
| York Postal Harriers | 1 | 1 | York Postal Harriers home page |
| Legal & General Athletics Club | 1 | 1 |
|
| FatBobs | 1 | 1 |
|
| Epsom & Ewell Harriers | 1 | 1 | Epsom & Ewell Harriers home page |
| Glossopdale Harriers | 1 | 1 | Glossopdale Harriers home page |
| Wallsend Harriers & AC | 1 | 2 | Wallsend Harriers & AC home page |
| Tri Sport Epping | 1 | 1 | Tri Sport Epping home page |
| Brørup Løbeklub | 1 | 3 | Brørup Løbeklub home page |
| Winchester Fit Club RC | 1 | 1 |
|
| Brighton and Hove Womens Running Club | 1 | 1 | Brighton and Hove Womens Running Club home page |
| Harlequins Harriers (GN) | 1 | 1 |
|
| Stevenage Striders | 1 | 1 | Stevenage Striders home page |
| Tri Woodmancote | 1 | 4 | Tri Woodmancote home page |
| Tring RC | 1 | 1 | Tring RC home page |
| Newark AC | 1 | 3 | Newark AC home page |
| Thames Valley Orienteering Club | 1 | 1 |
|
| Shepperton Running Group | 1 | 1 |
|
| Central Park Athletics | 1 | 1 | Central Park Athletics home page |
| Eynsham Road Runners | 1 | 1 | Eynsham Road Runners home page |
| Chippenham Harriers | 1 | 1 | Chippenham Harriers home page |
| Redhill Road Runners | 1 | 1 | Redhill Road Runners home page |
| Riot Squad | 1 | 1 | Riot Squad home page |
| Northampton Athletic Club | 1 | 1 | Northampton Athletic Club home page |
| Holme Pierrepont RC | 1 | 7 | Holme Pierrepont RC home page |
| Canterbury Harriers | 1 | 1 | Canterbury Harriers home page |
| North York Moors Athletic Club | 1 | 1 | North York Moors Athletic Club home page |
| 135 Running Club | 1 | 1 |
|
| Kingsway Runners | 1 | 1 | Kingsway Runners home page |
| Egdon Heath Harriers | 1 | 1 | Egdon Heath Harriers home page |
| Andover AC | 1 | 3 | Andover AC home page |
| Tavistock AC | 1 | 1 | Tavistock AC home page |
| Sheffield Running Club | 1 | 1 | Sheffield Running Club home page |
| Sherfield Park Runners | 1 | 1 |
|
| Farsley Flyers | 1 | 1 | Farsley Flyers home page |
| Landmarks Virtual Running Club | 1 | 1 |
|
| Sheen Shufflers | 1 | 1 | Sheen Shufflers home page |
| Portsmouth Triathletes | 1 | 1 | Portsmouth Triathletes home page |
| UCT AC | 1 | 1 |
|
| parkrun World tourists | 1 | 2 |
|
| Yeovil Town RRC | 1 | 2 | Yeovil Town RRC home page |
| Bingley Harriers and AC | 1 | 1 | Bingley Harriers and AC home page |
| Truro RC | 1 | 1 | Truro RC home page |
| Kintbury Joggers | 1 | 1 |
|
| Bosh run | 1 | 3 | Bosh run home page |
| Dorchester RIOT | 1 | 1 |
|
| Falmouth RRC | 1 | 1 | Falmouth RRC home page |
| Daventry Road Runners | 1 | 1 | Daventry Road Runners home page |
| Ochil Hill Runners | 1 | 1 | Ochil Hill Runners home page |
| Severn AC of Gloucester | 1 | 1 | Severn AC of Gloucester home page |
| Exeter tri club | 1 | 1 | Exeter tri club home page |
| Get Active Ash | 1 | 1 | Get Active Ash home page |
| Aldershot, Farnham & District AC | 1 | 1 | Aldershot, Farnham & District AC home page |
| Horsforth Harriers | 1 | 1 | Horsforth Harriers home page |
| Winchester and District AC | 1 | 1 | Winchester and District AC home page |
| Wycombe Phoenix Harriers & AC | 1 | 1 | Wycombe Phoenix Harriers & AC home page |
| Evesham Vale Running Club | 1 | 1 | Evesham Vale Running Club home page |
| Warwick University AC | 1 | 1 | Warwick University AC home page |
| Stamford Striders | 1 | 2 | Stamford Striders home page |
| Billy No-Mates | 1 | 1 | Billy No-Mates home page |
| Meridian Striders | 1 | 1 |
|
| English Shinty Association | 1 | 1 | English Shinty Association home page |
| Leeds & Bradford Triathlon Club | 1 | 1 | Leeds & Bradford Triathlon Club home page |
| Central AC | 1 | 1 | Central AC home page |
| Rodillian Runners | 1 | 2 | Rodillian Runners home page |
| Tailenders | 1 | 1 | Tailenders home page |
| Chew Valley Snails | 1 | 1 | Chew Valley Snails home page |
