| Reading Roadrunners | 151 | 708 | Reading Roadrunners home page  |
| Reading Joggers | 86 | 941 | Reading Joggers home page |
| Tri2O Triathlon Club | 54 | 256 | Tri2O Triathlon Club home page |
| Reading AC | 32 | 172 | Reading AC home page |
| Bracknell Forest Runners | 30 | 33 | Bracknell Forest Runners home page |
| Vegan Runners | 21 | 117 | Vegan Runners home page |
| Lonely Goat RC | 20 | 252 | Lonely Goat RC home page |
| Didcot Runners | 15 | 18 | Didcot Runners home page |
| Shinfield Running Club | 15 | 83 | Shinfield Running Club home page |
| Harwell Harriers | 15 | 16 | Harwell Harriers home page |
| Hatch Warren Runners | 15 | 23 | Hatch Warren Runners home page |
| UK parkrun tourists | 14 | 14 |
|
| 26.2 RRC | 12 | 12 | 26.2 RRC home page |
| Sweatshop Running Community | 12 | 61 | Sweatshop Running Community home page |
| Sandhurst Joggers | 12 | 15 | Sandhurst Joggers home page |
| Maidenhead AC | 12 | 21 | Maidenhead AC home page |
| Newbury AC | 12 | 17 | Newbury AC home page |
| Thames Valley Triathletes | 12 | 36 | Thames Valley Triathletes home page |
| Datchet Dashers | 12 | 13 | Datchet Dashers home page |
| Burnham Joggers | 11 | 26 | Burnham Joggers home page |
| Marlow Striders | 11 | 11 | Marlow Striders home page |
| John Lewis Partnership RC | 11 | 22 |
|
| Berkshire Hash House Harriers | 11 | 189 |
|
| parkrun World tourists | 10 | 41 |
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| Basingstoke & Mid Hants AC | 9 | 11 | Basingstoke & Mid Hants AC home page |
| Fetch Everyone RC | 9 | 12 | Fetch Everyone RC home page |
| Hi-5 Runners | 8 | 9 | Hi-5 Runners home page |
| Ealing Eagles Running Club | 8 | 8 | Ealing Eagles Running Club home page |
| Abingdon AC | 8 | 8 | Abingdon AC home page |
| Chineham Park Running Club | 8 | 9 | Chineham Park Running Club home page |
| Cove Joggers | 8 | 9 | Cove Joggers home page |
| British Airways AC | 7 | 8 | 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 |
| Slinn Allstars | 6 | 19 | Slinn Allstars home page |
| Muddy Runners | 6 | 8 | Muddy Runners home page |
| CSSC Sports & Leisure | 6 | 17 | CSSC Sports & Leisure home page |
| Lordshill Road Runners | 6 | 6 | Lordshill Road Runners home page |
| UK Mudd Queens | 6 | 15 | UK Mudd Queens home page |
| Sutton Runners | 6 | 6 | Sutton Runners home page |
| Ealing, Southall & Middlesex AC | 5 | 5 | Ealing, Southall & Middlesex AC home page |
| On The Run Aylesbury | 5 | 5 | On The Run Aylesbury home page |
| Stragglers | 5 | 5 | Stragglers home page |
| Hook Runners | 5 | 5 | Hook Runners home page |
| Emmanuel Church Chuggers | 5 | 5 | Emmanuel Church Chuggers home page |
| Almost Athletes | 5 | 11 | Almost Athletes home page |
| NHS Couch to 5k | 4 | 4 | NHS Couch to 5k home page |
| Alchester RC | 4 | 4 | Alchester RC home page |
| Serpentine RC | 4 | 7 | Serpentine RC home page |
| Finch Coasters | 4 | 6 | Finch Coasters home page |
| Witney Road Runners | 4 | 4 | Witney Road Runners home page |
| Flyers Southend | 4 | 4 | Flyers Southend home page |
| Thames Turbo Triathlon | 4 | 4 | Thames Turbo Triathlon home page |
| Reading Storm Chasers | 4 | 13 |
|
| Axe Valley Runners | 4 | 4 | Axe Valley Runners home page |
| Kings Heath Running Club | 4 | 12 | Kings Heath Running Club home page |
| Cruisers RC Woking | 4 | 4 | Cruisers RC Woking home page |
| Tadley Runners | 4 | 6 | Tadley Runners home page |
| Overton Harriers & AC | 4 | 4 | Overton Harriers & AC home page |
| Defence Sports & Recreation | 3 | 4 | Defence Sports & Recreation home page |
| Fleet & Crookham AC | 3 | 3 | Fleet & Crookham AC home page |
| New Forest Runners | 3 | 3 | New Forest Runners home page |
| Evesham Vale Running Club | 3 | 3 | Evesham Vale Running Club home page |
| Team Kennet | 3 | 5 | Team Kennet home page |
| Wargrave Runners | 3 | 3 | Wargrave Runners home page |
| Evolution Triathlon Club | 3 | 9 | Evolution Triathlon Club home page |
| Ordnance Survey Runners | 3 | 3 | Ordnance Survey Runners home page |
| Bracknell AC | 3 | 3 | Bracknell AC home page |
| Watford Joggers | 3 | 3 | Watford Joggers home page |
| British Military Fitness | 3 | 7 | British Military Fitness home page |
| Poole AC | 3 | 3 | Poole AC home page |
| Sherfield Park Runners | 3 | 3 |
|
| RunWallingford | 3 | 3 |
|
| Birmingham Running Athletics and Triathlon Club | 3 | 3 | Birmingham Running Athletics and Triathlon Club home page |
| Run Mummy Run | 3 | 7 | Run Mummy Run home page |
| Dagenham 88 Runners | 2 | 2 | Dagenham 88 Runners home page |
| Steel City Striders RC | 2 | 4 | Steel City Striders RC home page |
| Knowle and Dorridge Running Club | 2 | 4 | Knowle and Dorridge Running Club home page |
| Frimley Flyers | 2 | 3 | Frimley Flyers home page |
| Run 4 MS | 2 | 2 | Run 4 MS home page |
| Handy Cross Runners | 2 | 2 | Handy Cross Runners home page |
| Running Sisters Network | 2 | 2 | Running Sisters Network home page |
| South West Road Runners | 2 | 2 | South West Road Runners home page |
| Windle Valley Runners | 2 | 2 | Windle Valley Runners home page |
| Petts Wood Runners | 2 | 4 | Petts Wood Runners home page |
| Sale Harriers Manchester | 2 | 2 | Sale Harriers Manchester home page |
| Redingensians Rugby Club | 2 | 2 | Redingensians Rugby Club home page |
| Les Croupiers RC | 2 | 2 | Les Croupiers RC home page |
| Tadworth AC | 2 | 2 | Tadworth AC home page |
| St Albans Striders | 2 | 2 | St Albans Striders home page |
| Hungerford Hares | 2 | 2 | Hungerford Hares home page |
| Bedford Run Club | 2 | 2 |
|
| Epsom Allsorts | 2 | 2 | Epsom Allsorts home page |
| Great Bentley RC | 2 | 2 | Great Bentley RC home page |
| Didcot Hash House Harriers | 2 | 2 | Didcot Hash House Harriers home page |
| Reading Rascals | 2 | 6 | Reading Rascals home page |
| Massey Ferguson RC | 2 | 2 | Massey Ferguson RC home page |
| RbR Club | 2 | 5 | RbR Club home page |
| Windsor, Slough, Eton & Hounslow AC | 2 | 2 | Windsor, Slough, Eton & Hounslow AC home page |
| Camberley & District AC | 2 | 2 | Camberley & District AC home page |
| Pitsea RC | 2 | 2 | Pitsea RC home page |
| Wokingham Canoe Club | 2 | 2 | Wokingham Canoe Club home page |
| Altrincham and District AC | 2 | 2 | Altrincham and District AC home page |
| Victory AC | 2 | 2 | Victory AC home page |
| Newark AC | 2 | 9 | Newark AC home page |
| SHAEF Shifters | 2 | 2 | SHAEF Shifters home page |
| Run Things Run Club | 2 | 18 | Run Things Run Club home page |
| Hart Road Runners | 2 | 2 | Hart Road Runners home page |
| Emersons Green Running Club | 2 | 2 | Emersons Green Running Club home page |
| Farnham Runners | 2 | 3 | Farnham Runners home page |
| Metros RC | 2 | 2 | Metros RC home page |
| Clapham Runners | 2 | 2 | Clapham Runners home page |
| UKRunChat Running Club | 2 | 2 | UKRunChat Running Club home page |
| March AC | 2 | 2 | March AC home page |
| City of Salisbury A & RC | 2 | 2 | City of Salisbury A & RC home page |
| Olney Runners AC | 2 | 2 | Olney Runners AC home page |
| Stubbington Green Runners | 2 | 2 | Stubbington Green Runners home page |
| Harpenden's Junior Runners | 2 | 2 | Harpenden's Junior Runners home page |
| Badass Mother Runners | 2 | 2 |
|
| Beckenham RC | 2 | 2 | Beckenham RC home page |
| SN Orienteering Club | 2 | 25 | SN Orienteering Club home page |
| Ilford AC | 2 | 2 | Ilford AC home page |
| Teignbridge Trotters | 2 | 2 | Teignbridge Trotters 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 |
| Fulham RC | 2 | 4 | Fulham RC home page |
| Aberystwyth AC | 2 | 3 | Aberystwyth AC home page |
| GoodGym | 2 | 2 | GoodGym home page |
| North Bolton Runners | 2 | 4 |
|
| Orion Harriers | 2 | 5 | Orion Harriers home page |
| Taf Running & Orienteering | 2 | 4 | Taf Running & Orienteering home page |
| Cotswold Allrunners | 2 | 2 | Cotswold Allrunners home page |
| Clapham Chasers RC | 2 | 5 | Clapham Chasers RC home page |
| UK Lunatics | 2 | 2 | UK Lunatics home page |
| Clapham Pioneers | 2 | 2 | Clapham Pioneers home page |
| Eastleigh RC | 2 | 2 | Eastleigh RC home page |
| Team Bath AC | 2 | 2 |
|
| Striders of Croydon AC | 2 | 2 | Striders of Croydon AC home page |
| Chiltern Church Runners | 2 | 2 | Chiltern Church Runners home page |
| Blackwater Valley Runners | 2 | 2 | Blackwater Valley Runners home page |
| Winchester and District AC | 2 | 2 | Winchester and District AC home page |
| Black Pear Joggers | 2 | 2 | Black Pear Joggers home page |
| ParkrunnerPB | 2 | 12 | ParkrunnerPB home page |
| Pyrford Puffers | 2 | 2 |
|
| Westbourne Running Club | 2 | 2 | Westbourne Running Club home page |
| Hayes & Harlington Road Runners | 2 | 2 | Hayes & Harlington Road Runners home page |
| Varsity Kudus AC | 2 | 3 |
|
| Waverley Harriers | 2 | 2 | Waverley Harriers home page |
| Southville Running Club | 2 | 2 |
|
| Styal Running Club | 2 | 2 | Styal Running Club home page |
| Moneynest.co.uk Rhino Runners | 2 | 36 |
|
| Wimbledon Windmilers | 2 | 2 | Wimbledon Windmilers home page |
| Alton Runners | 2 | 2 | Alton Runners home page |
| Tiptree Road Runners | 2 | 2 | Tiptree Road Runners home page |
| Fitstuff | 2 | 2 | Fitstuff home page |
| Oxford University Cross Country Club | 1 | 1 | Oxford University Cross Country Club home page |
| Bosh run | 1 | 3 | Bosh run home page |
| Great Western Runners | 1 | 1 | Great Western Runners home page |
| Bingley Harriers and AC | 1 | 1 | Bingley Harriers and AC home page |
| Wee County Harriers | 1 | 1 | Wee County Harriers home page |
| North York Moors Athletic Club | 1 | 1 | North York Moors Athletic Club home page |
| East End Road Runners | 1 | 1 | East End Road Runners home page |
| Westbury Run England Group | 1 | 2 | Westbury Run England Group home page |
| Bosch Athletics Club | 1 | 1 |
|
| Up and Running | 1 | 1 |
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| Chippenham Harriers | 1 | 2 | Chippenham Harriers home page |
| parkrun World tourists | 1 | 2 |
|
| Barnsley Harriers | 1 | 1 | Barnsley Harriers home page |
| Carn Runners of Holman | 1 | 2 | Carn Runners of Holman home page |
| Wallingford Triathlon Club | 1 | 1 | Wallingford Triathlon Club home page |
| Dockside Runners | 1 | 1 | Dockside Runners home page |
| Andover AC | 1 | 5 | Andover AC home page |
| Vegetarian Cycling and AC | 1 | 1 | Vegetarian Cycling and AC home page |
| 135 Running Club | 1 | 2 |
|
| Geelong Cross Country Club | 1 | 1 | Geelong Cross Country Club home page |
| Tailenders | 1 | 1 | Tailenders home page |
| No Need For Speed | 1 | 1 |
|
| Get Active Ash | 1 | 1 | Get Active Ash home page |
| Aldershot, Farnham & District AC | 1 | 1 | Aldershot, Farnham & District AC home page |
| Islwyn RC | 1 | 1 | Islwyn RC home page |
| Crystal Palace Fun Runners | 1 | 1 | Crystal Palace Fun Runners home page |
| Stopsley Striders Jogging Club | 1 | 7 | Stopsley Striders Jogging Club home page |
| Ravenstone Runners | 1 | 1 | Ravenstone Runners home page |
| RAW Obstacle Race Team | 1 | 1 | RAW Obstacle Race Team home page |
| Wellingborough & District AC | 1 | 1 | Wellingborough & District AC home page |
| Wycombe Phoenix Harriers & AC | 1 | 1 | Wycombe Phoenix Harriers & AC home page |
| Rodillian Runners | 1 | 2 | Rodillian Runners home page |
| Running Colchester | 1 | 1 |
|
| SSE Running Club | 1 | 10 |
|
| Edinburgh AC | 1 | 1 | Edinburgh AC home page |
| Trail Running Association | 1 | 2 | Trail Running Association home page |
| South West Veterans AC | 1 | 1 | South West Veterans AC home page |
| Thames Valley Orienteering Club | 1 | 1 |
|
| Thornton Cleveleys | 1 | 1 | Thornton Cleveleys home page |
| London City Athletics Club | 1 | 2 | London City Athletics Club home page |
| Renegade Runners | 1 | 1 |
|
| oneALS | 1 | 1 |
|
| parkrun for people living with asthma | 1 | 8 | parkrun for people living with asthma home page |
| Swim-1st Triathlon Club | 1 | 1 | Swim-1st Triathlon Club home page |
| Fuddy Muckers | 1 | 1 |
|
| Barnet and District AC | 1 | 1 | Barnet and District AC home page |
| Bushfield Joggers | 1 | 1 | Bushfield Joggers home page |
| Radley AC | 1 | 1 | Radley AC home page |
| Tri Sport Epping | 1 | 1 | Tri Sport Epping home page |
| Glossopdale Harriers | 1 | 1 | Glossopdale Harriers home page |
| Harlequins Harriers (GN) | 1 | 1 |
|
| Bodmin Road Runners | 1 | 4 | Bodmin Road Runners home page |
| WORCESTERSHIRE TRAILBLAZERS | 1 | 1 | WORCESTERSHIRE TRAILBLAZERS home page |
| Sheen Shufflers | 1 | 1 | Sheen Shufflers home page |
| Itchen Spitfires Running Club | 1 | 1 | Itchen Spitfires Running Club home page |
| FatBobs | 1 | 1 |
|
| Chiltern Harriers AC | 1 | 1 | Chiltern Harriers AC home page |
| Yeovil Town RRC | 1 | 2 | Yeovil Town RRC home page |
| Cambridge and Coleridge AC | 1 | 9 | Cambridge and Coleridge AC home page |
| Wreake Runners | 1 | 1 | Wreake Runners home page |
| Farsley Flyers | 1 | 1 | Farsley Flyers home page |
| High Sheriff of Oxon Challenge Nielsen | 1 | 1 |
|
| Mid Essex Casuals | 1 | 1 | Mid Essex Casuals home page |
| Eynsham Road Runners | 1 | 1 | Eynsham Road Runners home page |
| Liverpool RC | 1 | 1 | Liverpool RC home page |
| Wallsend Harriers & AC | 1 | 2 | Wallsend Harriers & AC home page |
| Berkshire Orienteers | 1 | 20 |
|
| viewtube runners | 1 | 1 | viewtube runners home page |
| Tri Woodmancote | 1 | 4 | Tri Woodmancote home page |
| Compile, RUN, Debug | 1 | 1 | Compile, RUN, Debug home page |
| Bideford AAC | 1 | 1 | Bideford AAC home page |
| Brighton and Hove Womens Running Club | 1 | 1 | Brighton and Hove Womens Running Club home page |
| Sheffield Running Club | 1 | 1 | Sheffield Running Club home page |
| Central Park Athletics | 1 | 1 | Central Park Athletics home page |
| Egdon Heath Harriers | 1 | 1 | Egdon Heath Harriers home page |
| Tring RC | 1 | 1 | Tring RC home page |
| Middleton Harriers AC | 1 | 1 | Middleton Harriers AC home page |
| Purple Patch Runners | 1 | 1 | Purple Patch Runners home page |
| Sedgefield Striders | 1 | 1 |
|
| Riot Squad | 1 | 1 | Riot Squad home page |
| Cranleigh Runners | 1 | 1 | Cranleigh Runners home page |
| Harpenden Arrows Running Club | 1 | 1 | Harpenden Arrows Running Club home page |
| CGI IT UK Ltd | 1 | 2 |
|
| Canterbury Harriers | 1 | 1 | Canterbury Harriers home page |
| Wrexham AAC | 1 | 1 | Wrexham AAC home page |
| Rand Athletic Club | 1 | 7 |
|
| Meridian Striders | 1 | 1 |
|
| Winchester Fit Club RC | 1 | 1 |
|
| North Herts RRC | 1 | 1 | North Herts RRC home page |
| Falmouth RRC | 1 | 1 | Falmouth RRC home page |
| Neath Harriers | 1 | 1 | Neath Harriers home page |
| Birch Hill Primary School | 1 | 1 |
|
| Irvine Running Club | 1 | 2 | Irvine Running Club home page |
| Redhill Road Runners | 1 | 1 | Redhill Road Runners home page |
| Brørup Løbeklub | 1 | 4 | Brørup Løbeklub home page |
| Coopervision Running Club | 1 | 1 |
|
| Dorchester RIOT | 1 | 1 |
|
| Guildford & Godalming AC | 1 | 1 | Guildford & Godalming AC home page |
| Low Fell RC | 1 | 1 | Low Fell RC home page |
| Trent Park Running Club | 1 | 1 | Trent Park Running Club home page |
| 100 Marathon Club | 1 | 2 | 100 Marathon Club home page |
| UCT AC | 1 | 1 |
|
| Stevenage Striders | 1 | 1 | Stevenage Striders home page |
| Walking at parkrun | 1 | 1 | Walking at parkrun home page |
| Leeds & Bradford Triathlon Club | 1 | 1 | Leeds & Bradford Triathlon Club home page |
| Daventry Road Runners | 1 | 1 | Daventry Road Runners home page |
| Ochil Hill Runners | 1 | 1 | Ochil Hill Runners home page |
| Tavistock AC | 1 | 1 | Tavistock AC home page |
| Southampton Triathlon Club | 1 | 1 | Southampton Triathlon Club home page |
| Garden City Runners | 1 | 1 | Garden City Runners home page |
| York Acorn RC | 1 | 1 | York Acorn RC home page |
| Desborough and Rothwell Running Club | 1 | 1 | Desborough and Rothwell Running Club home page |
| Landmarks Virtual Running Club | 1 | 1 |
|
| Hardley Runners | 1 | 1 | Hardley Runners home page |
| Collingwood AC | 1 | 3 | Collingwood AC home page |
| Warwick University AC | 1 | 1 | Warwick University AC home page |
| Spa Striders RC | 1 | 2 | Spa Striders RC home page |
| Spirit Of Monmouth RC | 1 | 1 | Spirit Of Monmouth RC home page |
| Legal & General Athletics Club | 1 | 1 |
|
| Chew Valley Snails | 1 | 1 | Chew Valley Snails home page |
| Backpackersclc | 1 | 1 | Backpackersclc home page |
| West 4 Harriers | 1 | 1 | West 4 Harriers home page |
| Holme Pierrepont RC | 1 | 7 | Holme Pierrepont RC home page |
| Central AC | 1 | 1 | Central AC home page |
| Portsmouth Triathletes | 1 | 1 | Portsmouth Triathletes home page |
| Severn AC of Gloucester | 1 | 1 | Severn AC of Gloucester home page |
| Redway Runners | 1 | 10 | Redway Runners home page |
| TRiKS | 1 | 1 | TRiKS home page |
| DSC AC | 1 | 1 |
|
| East London Runners | 1 | 1 | East London Runners home page |
| Truro RC | 1 | 1 | Truro RC home page |
| Royal Wootton Bassett Hounds RC | 1 | 1 | Royal Wootton Bassett Hounds RC home page |
| Rebel Runners Nottingham | 1 | 1 | Rebel Runners Nottingham home page |
| Walking at parkrun | 1 | 1 |
|
| Mansfield Harriers & AC | 1 | 1 | Mansfield Harriers & AC home page |
| Dawlish Coasters | 1 | 1 | Dawlish Coasters home page |
| Stamford Striders | 1 | 2 | Stamford Striders home page |
| Totton Running club | 1 | 1 | Totton Running club home page |
| Kintbury Joggers | 1 | 1 |
|
| Shepperton Running Group | 1 | 1 |
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| Three Counties Triathletes | 1 | 1 | Three Counties Triathletes home page |
| Forest of Dean AC | 1 | 1 | Forest of Dean AC home page |
| York Postal Harriers | 1 | 1 | York Postal Harriers home page |
| Devizes Running club | 1 | 1 | Devizes Running club home page |
| Lawley Running Club | 1 | 1 | Lawley Running Club home page |
| Busrungroup | 1 | 1 |
|
| English Shinty Association | 1 | 2 | English Shinty Association home page |
| Ranelagh Harriers | 1 | 1 | Ranelagh Harriers home page |
| Lancing Eagles RC | 1 | 1 |
|
| City of Portsmouth AC | 1 | 1 | City of Portsmouth AC home page |
| Wadhurst Runners | 1 | 1 | Wadhurst Runners home page |
| South Wales Police | 1 | 1 | South Wales Police home page |
| Kingsway Runners | 1 | 1 | Kingsway Runners home page |
| Bridport Runners | 1 | 1 |
|
| Horsforth Harriers | 1 | 1 | Horsforth Harriers home page |
| Centurion RC | 1 | 1 | Centurion RC home page |
| Ryde Harriers | 1 | 1 | Ryde Harriers home page |
| Tyne Bridge Harriers | 1 | 2 | Tyne Bridge Harriers home page |
| St Austell Athletes Running Club | 1 | 1 |
|
| Hercules Wimbledon AC | 1 | 1 | Hercules Wimbledon AC home page |
| Eryri Harriers | 1 | 2 | Eryri Harriers home page |
| Wootton Road Runners | 1 | 1 | Wootton Road Runners home page |
| University of West England | 1 | 1 | University of West England home page |
| Beccles and Bungay Harriers | 1 | 1 |
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| Northampton Athletic Club | 1 | 1 | Northampton Athletic Club home page |
