| Sudbury Joggers | 106 | 5566 | Sudbury Joggers home page  |
| Colchester Harriers AC | 64 | 628 | Colchester Harriers AC home page |
| TRI Sudbury | 56 | 1450 | TRI Sudbury home page |
| Haverhill RC | 44 | 143 | Haverhill RC home page |
| Halstead RRC | 38 | 358 | Halstead RRC home page |
| Hadleigh Hares AC | 32 | 193 | Hadleigh Hares AC home page |
| Saint Edmund Pacers | 29 | 298 | Saint Edmund Pacers home page |
| Running Colchester | 27 | 153 |
|
| Vegan Runners | 26 | 303 | Vegan Runners home page |
| Stowmarket Striders RC | 21 | 39 | Stowmarket Striders RC home page |
| Great Bentley RC | 20 | 23 | Great Bentley RC home page |
| St Edmunds Pacers | 17 | 156 | St Edmunds Pacers home page |
| Harwich Runners | 17 | 53 | Harwich Runners home page |
| Lonely Goat RC | 17 | 64 | Lonely Goat RC home page |
| Ipswich JAFFA RC | 16 | 21 | Ipswich JAFFA RC home page |
| S C Fitness | 15 | 668 | S C Fitness home page |
| Braintree & District AC | 13 | 106 | Braintree & District AC home page |
| Felixstowe RRC | 13 | 15 | Felixstowe RRC home page |
| Springfield Striders RC | 12 | 296 | Springfield Striders RC home page |
| Michelle's Running Group | 11 | 17 |
|
| Grange Farm and Dunmow Runners | 10 | 17 | Grange Farm and Dunmow Runners home page |
| West Suffolk AC | 10 | 98 | West Suffolk AC home page |
| Mid Essex Casuals | 8 | 32 | Mid Essex Casuals home page |
| UK parkrun tourists | 8 | 8 |
|
| Eye Community Runners | 8 | 8 | Eye Community Runners home page |
| Dereham Runners AC | 8 | 9 | Dereham Runners AC home page |
| East London Runners | 7 | 8 | East London Runners home page |
| Kesgrave Kruisers | 7 | 13 | Kesgrave Kruisers home page |
| Witham RC | 7 | 103 | Witham RC home page |
| Cambridge and Coleridge AC | 6 | 6 | Cambridge and Coleridge AC home page |
| Tiptree Road Runners | 6 | 7 | Tiptree Road Runners home page |
| 26.2 RRC | 6 | 7 | 26.2 RRC home page |
| Jogging Made Easy | 6 | 8 | Jogging Made Easy home page |
| Newmarket Joggers | 6 | 31 | Newmarket Joggers home page |
| St Radegund RDC | 6 | 6 | St Radegund RDC home page |
| Bishops Stortford RC | 5 | 5 | Bishops Stortford RC home page |
| Dartford Road Runners | 5 | 6 | Dartford Road Runners home page |
| Thetford AC | 5 | 5 | Thetford AC home page |
| Castle Point Joggers | 5 | 6 | Castle Point Joggers home page |
| Colchester & Tendring AC | 5 | 58 | Colchester & Tendring AC home page |
| Framlingham Flyers | 4 | 107 | Framlingham Flyers home page |
| With Me Now | 4 | 4 |
|
| Pitsea RC | 4 | 4 | Pitsea RC home page |
| East End Road Runners | 4 | 4 | East End Road Runners home page |
| Ranelagh Harriers | 4 | 4 | Ranelagh Harriers home page |
| Saffron Striders RC | 4 | 49 | Saffron Striders RC home page |
| Serpentine RC | 4 | 4 | Serpentine RC home page |
| Suffolk Orienteering Club | 4 | 11 | Suffolk Orienteering Club home page |
| Sweatshop Running Community | 4 | 4 | Sweatshop Running Community home page |
| Mersea Island Hash House Harriers | 4 | 4 |
|
| Little Baddow Ridge RC | 4 | 4 |
|
| Norfolk Gazelles AC | 4 | 5 | Norfolk Gazelles AC home page |
| Ipswich Harriers | 4 | 8 | Ipswich Harriers home page |
| Suffolk Trail Runners | 4 | 9 | Suffolk Trail Runners home page |
| Boxted Runners | 4 | 15 |
|
| Ilford AC | 4 | 12 | Ilford AC home page |
| Glemsford Runners | 4 | 7 |
|
| Loughton AC | 3 | 63 | Loughton AC home page |
| Tailenders | 3 | 3 | Tailenders home page |
| Nuclear Races Striders | 3 | 47 |
|
| Newbury AC | 3 | 3 | Newbury AC home page |
| viewtube runners | 3 | 3 | viewtube runners home page |
| Ipswich Triathlon Club | 3 | 9 | Ipswich Triathlon Club home page |
| Stragglers | 3 | 3 | Stragglers home page |
| Company of Runners | 3 | 15 | Company of Runners home page |
| Hercules Wimbledon AC | 3 | 3 | Hercules Wimbledon AC home page |
| Ely Runners | 3 | 3 | Ely Runners home page |
| London FrontRunners | 3 | 5 | London FrontRunners home page |
| Clapham Chasers RC | 3 | 3 | Clapham Chasers RC home page |
| Chichester Runners & AC | 3 | 8 | Chichester Runners & AC home page |
| Run For Your Life | 3 | 5 |
|
| Shepshed RC | 3 | 3 | Shepshed RC home page |
| Dulwich Runners AC | 3 | 3 | Dulwich Runners AC home page |
| Pershore Plum Plodders | 3 | 6 | Pershore Plum Plodders home page |
| Abingdon AC | 3 | 3 | Abingdon AC home page |
| BRJ Run and Tri | 3 | 3 | BRJ Run and Tri home page |
| Run Eat Sleep - South Shields | 3 | 3 | Run Eat Sleep - South Shields home page |
| Newmarket Cycling and Triathlon Club | 2 | 2 |
|
| Roundhay Runners | 2 | 2 | Roundhay Runners home page |
| The Commando Runners | 2 | 8 | The Commando Runners home page |
| The Salvation Army | 2 | 2 | The Salvation Army home page |
| Rayne Runners | 2 | 2 | Rayne Runners home page |
| Wimbledon Windmilers | 2 | 7 | Wimbledon Windmilers home page |
| Headington RRC | 2 | 2 | Headington RRC home page |
| Tri Sport Epping | 2 | 2 | Tri Sport Epping home page |
| Fordy Runs | 2 | 2 | Fordy Runs home page |
| Beverley AC | 2 | 2 | Beverley AC home page |
| Bungay Black Dog RC | 2 | 3 | Bungay Black Dog RC home page |
| Bramhall Runners | 2 | 2 | Bramhall Runners home page |
| Kimberley & District Striders | 2 | 2 | Kimberley & District Striders home page |
| West Suffolk Wheelers and Triathlon Club | 2 | 2 | West Suffolk Wheelers and Triathlon Club home page |
| Fen Edge Runners | 2 | 2 |
|
| Wayland Hares Running Club | 2 | 7 | Wayland Hares Running Club home page |
| Coltishall Jaguars | 2 | 2 | Coltishall Jaguars home page |
| Capel Cheetahs | 2 | 3 | Capel Cheetahs home page |
| Todmorden Harriers & AC | 2 | 3 | Todmorden Harriers & AC home page |
| Cardiac Athletes | 2 | 2 | Cardiac Athletes home page |
| NHS Couch to 5k | 2 | 5 | NHS Couch to 5k home page |
| Spa Striders RC | 2 | 2 | Spa Striders RC home page |
| Chiltern Church Runners | 2 | 2 | Chiltern Church Runners home page |
| Ryston Runners AC | 2 | 2 | Ryston Runners AC home page |
| Chessington Unity Running Club | 2 | 2 | Chessington Unity Running Club home page |
| Riverside Runners | 2 | 4 | Riverside Runners home page |
| Ealing Eagles Running Club | 2 | 2 | Ealing Eagles Running Club home page |
| Bildeston Bounders AC | 2 | 2 |
|
| Wymondham AC | 2 | 2 | Wymondham AC home page |
| Charles Derby Vitality Club | 2 | 12 | Charles Derby Vitality Club home page |
| Parkside Running & Fitness | 2 | 2 | Parkside Running & Fitness home page |
| Hash House Harriers | 2 | 2 | Hash House Harriers home page |
| Flyers Southend | 2 | 2 | Flyers Southend home page |
| Notley Running Group | 2 | 2 |
|
| Rock Runners | 2 | 5 | Rock Runners home page |
| Run 4 MS | 2 | 2 | Run 4 MS home page |
| Berkshire Tri | 2 | 2 |
|
| Worthing & District Harriers | 2 | 2 | Worthing & District Harriers home page |
| GoodGym | 2 | 2 | GoodGym home page |
| Craig's layer boot camp | 2 | 3 | Craig's layer boot camp home page |
| BC Revolution | 2 | 2 | BC Revolution home page |
| City of London Freemens School | 2 | 4 | City of London Freemens School home page |
| Harlow RC | 2 | 2 | Harlow RC home page |
| North York Moors Athletic Club | 2 | 2 | North York Moors Athletic Club home page |
| Lordshill Road Runners | 2 | 2 | Lordshill Road Runners home page |
| Bure Valley Harriers | 2 | 2 | Bure Valley Harriers home page |
| Cambridge Canoe Club | 2 | 2 |
|
| York Knavesmire Harriers | 2 | 2 | York Knavesmire Harriers home page |
| Rochford Running Club | 2 | 2 | Rochford Running Club home page |
| Cliff Lakes OCR | 2 | 8 | Cliff Lakes OCR home page |
| Bristol and West AC | 2 | 3 | Bristol and West AC home page |
| Benfleet RC | 2 | 2 | Benfleet RC home page |
| Thames Hare & Hounds | 2 | 25 | Thames Hare & Hounds home page |
| Meirionnydd Running Club | 2 | 168 | Meirionnydd Running Club home page |
| CSSC Sports & Leisure | 2 | 8 | CSSC Sports & Leisure home page |
| Shrewsbury AC | 1 | 1 | Shrewsbury AC home page |
| Kidlington Running & AC | 1 | 1 | Kidlington Running & AC home page |
| Woodbridge Shufflers RRC | 1 | 1 | Woodbridge Shufflers RRC home page |
| North Devon RR | 1 | 1 | North Devon RR home page |
| Chelmsford Dynamos | 1 | 1 | Chelmsford Dynamos home page |
| AXA UK Running Club | 1 | 7 |
|
| Pentathlon GB | 1 | 21 | Pentathlon GB home page |
| Burnham Joggers | 1 | 1 | Burnham Joggers home page |
| Gade Valley Harriers | 1 | 1 | Gade Valley Harriers home page |
| Diss & District AC | 1 | 1 | Diss & District AC home page |
| Oswestry Olympians | 1 | 1 | Oswestry Olympians home page |
| Beeston AC | 1 | 1 | Beeston AC home page |
| South Woodham Runners | 1 | 1 | South Woodham Runners home page |
| Woodford Green AC with Essex Ladies | 1 | 1 | Woodford Green AC with Essex Ladies home page |
| Tri-Anglia | 1 | 1 | Tri-Anglia home page |
| Knutsford Tri Club | 1 | 6 | Knutsford Tri Club home page |
| Parklands Jog and Run | 1 | 8 | Parklands Jog and Run home page |
| Storm Plymouth | 1 | 3 | Storm Plymouth home page |
| Stratford-upon-Avon AC | 1 | 1 | Stratford-upon-Avon AC home page |
| Hatch Warren Runners | 1 | 1 | Hatch Warren Runners home page |
| London City Athletics Club | 1 | 1 | London City Athletics Club home page |
| Fulham RC | 1 | 1 | Fulham RC home page |
| Gateshead Harriers & AC | 1 | 1 | Gateshead Harriers & AC home page |
| Petts Wood Runners | 1 | 1 | Petts Wood Runners home page |
| parkrun Resolution | 1 | 1 | parkrun Resolution home page |
| Willesden Triathlon Club | 1 | 2 | Willesden Triathlon Club home page |
| Run Peterlee | 1 | 1 |
|
| South London Harriers | 1 | 1 | South London Harriers home page |
| Ludlow Runners | 1 | 1 | Ludlow Runners home page |
| Tring RC | 1 | 1 | Tring RC home page |
| WaldenTri | 1 | 6 | WaldenTri home page |
| Gresham Gazelles | 1 | 1 |
|
| Chelmsford AC | 1 | 1 | Chelmsford AC home page |
| Croft Ambrey RC | 1 | 1 | Croft Ambrey RC home page |
| Ryde Harriers | 1 | 1 | Ryde Harriers home page |
| Team Cherwell | 1 | 1 | Team Cherwell home page |
| McCarkiss Endurance Project | 1 | 1 | McCarkiss Endurance Project home page |
| North Herts RRC | 1 | 1 | North Herts RRC home page |
| Bitton Road Runners | 1 | 1 | Bitton Road Runners home page |
| Cambridge Harriers | 1 | 1 | Cambridge Harriers home page |
| 100 Marathon Club | 1 | 1 | 100 Marathon Club home page |
| Worthy Runners | 1 | 1 | Worthy Runners home page |
| St Marys Lower School | 1 | 1 | St Marys Lower School home page |
| Windle Valley Runners | 1 | 1 | Windle Valley Runners home page |
| Corby AC | 1 | 2 | Corby AC home page |
| Reading Joggers | 1 | 2 | Reading Joggers home page |
| Tyne Bridge Harriers | 1 | 1 | Tyne Bridge Harriers home page |
| run4fun | 1 | 1 | run4fun home page |
| parkrun World tourists | 1 | 1 |
|
| Hayes & Harlington Road Runners | 1 | 1 | Hayes & Harlington Road Runners home page |
| Garscube Harriers | 1 | 1 | Garscube Harriers home page |
| Biggleswade AC | 1 | 1 | Biggleswade AC home page |
| Rebel Runners ~ Medway | 1 | 1 | Rebel Runners ~ Medway home page |
| Run Verity | 1 | 2 | Run Verity home page |
| Vegan Runners | 1 | 4 | Vegan Runners home page |
| March AC | 1 | 1 | March AC home page |
| Arena 80 AC | 1 | 1 | Arena 80 AC home page |
| Tuff Fitty Triathlon Club | 1 | 1 | Tuff Fitty Triathlon Club home page |
| London City Runners | 1 | 1 | London City Runners home page |
| Mudstacle | 1 | 3 | Mudstacle home page |
| Bristol Up & Runners | 1 | 1 |
|
| I Can Run CIC | 1 | 1 |
|
| City of Norwich AC | 1 | 1 | City of Norwich AC home page |
| Great Yarmouth & District AC | 1 | 1 | Great Yarmouth & District AC home page |
| Barrow Runners | 1 | 1 | Barrow Runners home page |
| Dagenham 88 Runners | 1 | 1 | Dagenham 88 Runners home page |
| St Albans Striders | 1 | 1 | St Albans Striders home page |
| Plymouth Musketeers RC | 1 | 1 | Plymouth Musketeers RC home page |
| White Rock Runners | 1 | 1 | White Rock Runners home page |
| 100% me | 1 | 1 | 100% me home page |
| Ogmore Phoenix Runners | 1 | 1 | Ogmore Phoenix Runners home page |
| Fairlands Valley Spartans RC | 1 | 1 | Fairlands Valley Spartans RC home page |
| Alchester RC | 1 | 1 | Alchester RC home page |
| Cambridge Triathlon Club | 1 | 1 | Cambridge Triathlon Club home page |
| Royal Wootton Bassett Hounds RC | 1 | 1 | Royal Wootton Bassett Hounds RC home page |
| Edinburgh Running Network | 1 | 1 | Edinburgh Running Network home page |
| DH Runners | 1 | 1 | DH Runners home page |
| Essex Hash House Harriers | 1 | 1 | Essex Hash House Harriers home page |
| UKRunChat Running Club | 1 | 4 | UKRunChat Running Club home page |
| Barnet and District AC | 1 | 1 | Barnet and District AC home page |
| Windsor, Slough, Eton & Hounslow AC | 1 | 1 | Windsor, Slough, Eton & Hounslow AC home page |
| Corsham RC | 1 | 2 | Corsham RC home page |
| Tonbridge AC | 1 | 1 | Tonbridge AC home page |
| Ravens | 1 | 3 | Ravens home page |
| Team Dunerunner | 1 | 1 | Team Dunerunner home page |
| Takeley Running Group | 1 | 1 | Takeley Running Group home page |
| Brandon Fern Hoppers | 1 | 27 | Brandon Fern Hoppers home page |
| British Army | 1 | 1 |
|
| Leigh on Sea Striders | 1 | 2 | Leigh on Sea Striders home page |
| Chelmsford Canoe Club | 1 | 1 | Chelmsford Canoe Club home page |
| Chelmer RoadRunners | 1 | 1 | Chelmer RoadRunners home page |
| Brighouse Bumble Bees | 1 | 1 |
|
| Striders of Croydon AC | 1 | 1 | Striders of Croydon AC home page |
| Marshall Milton Keynes AC | 1 | 3 | Marshall Milton Keynes AC home page |
| UKnetrunner | 1 | 1 | UKnetrunner home page |
| Hyde Park Harriers | 1 | 1 | Hyde Park Harriers home page |
| BlackWater Tri Club | 1 | 1 | BlackWater Tri Club home page |
| Basildon AC | 1 | 1 | Basildon AC home page |
| University of West England | 1 | 1 | University of West England home page |
| RunDMC | 1 | 1 |
|
| Hardley Runners | 1 | 1 | Hardley Runners home page |
| Lingfield RC | 1 | 1 | Lingfield RC home page |
| Worcester AC | 1 | 2 | Worcester AC home page |
| West Lothian Triathlon | 1 | 1 |
|
| Defence Sports & Recreation | 1 | 1 | Defence Sports & Recreation home page |
| MORDEN RUNNERS | 1 | 1 | MORDEN RUNNERS home page |
| Yeovil Town RRC | 1 | 10 | Yeovil Town RRC home page |
| Wallsend Harriers & AC | 1 | 1 | Wallsend Harriers & AC home page |
| Sevenoaks AC | 1 | 5 | Sevenoaks AC home page |
| Porter Valley Plodders | 1 | 1 | Porter Valley Plodders home page |
| Barefoot Runners Society - UK | 1 | 1 | Barefoot Runners Society - UK home page |
| Maverick Runners | 1 | 10 |
|
| RunThrough | 1 | 1 | RunThrough home page |
| Run The Joules | 1 | 1 | Run The Joules home page |
| Herne Hill Harriers | 1 | 2 | Herne Hill Harriers home page |
| Erme Valley Harriers | 1 | 1 | Erme Valley Harriers home page |
| Billericay Striders RC | 1 | 1 | Billericay Striders RC home page |
| Brighton Hash House Harriers | 1 | 1 | Brighton Hash House Harriers home page |
| Great Yarmouth Road Runners | 1 | 1 | Great Yarmouth Road Runners home page |
| Transport for London parkrun Club | 1 | 1 |
|
| Maidstone Harriers | 1 | 1 | Maidstone Harriers home page |
| London Heathside | 1 | 1 | London Heathside home page |
| Stamford Striders | 1 | 21 | Stamford Striders home page |
| Coventry Triathletes | 1 | 2 |
|
| Walking at parkrun | 1 | 1 | Walking at parkrun home page |
| Dorking & Mole Valley AC | 1 | 4 | Dorking & Mole Valley AC home page |
| Gravesend Road Runners & AC | 1 | 1 | Gravesend Road Runners & AC home page |
| BBC RC | 1 | 1 |
|
| Buckingham & Stowe RC | 1 | 1 | Buckingham & Stowe RC home page |
| St Helens Striders | 1 | 1 | St Helens Striders home page |
| Sale Harriers Manchester | 1 | 1 | Sale Harriers Manchester home page |
| Chigwell and Epping Forest Orienteering Club | 1 | 1 | Chigwell and Epping Forest Orienteering Club home page |
| Derek Zoolander Centre for Kids Who Can't Run Good | 1 | 1 | Derek Zoolander Centre for Kids Who Can't Run Good home page |
| Rushmere Community Runners | 1 | 1 | Rushmere Community Runners home page |
| Shaftesbury Barnet Harriers | 1 | 1 | Shaftesbury Barnet Harriers home page |
| Slinn Allstars | 1 | 1 | Slinn Allstars home page |
| Singapore Shufflers | 1 | 1 | Singapore Shufflers home page |
| Kingston Lacy Running Group | 1 | 3 |
|
| East Coast Runners | 1 | 1 |
|
| Bideford AAC | 1 | 1 | Bideford AAC home page |
| Garden City Runners | 1 | 1 | Garden City Runners home page |
| City of Hull AC | 1 | 2 | City of Hull AC home page |
| Ware Joggers | 1 | 6 | Ware Joggers home page |
| Red Rose Road Runners | 1 | 1 | Red Rose Road Runners home page |
| Rayleigh RAT Runners | 1 | 1 | Rayleigh RAT Runners home page |
| DofE | 1 | 1 | DofE home page |
| Girls That Jeff | 1 | 16 | Girls That Jeff home page |
| East Hull Harriers & AC | 1 | 1 | East Hull Harriers & AC home page |
| Birchfield Harriers | 1 | 1 | Birchfield Harriers home page |
| Bristol University Cross Country Club | 1 | 30 | Bristol University Cross Country Club home page |
| Dubai Road Runners | 1 | 1 | Dubai Road Runners home page |
| Bridgnorth Running Club | 1 | 1 | Bridgnorth Running Club home page |
| Team Kennet | 1 | 1 | Team Kennet home page |
| University of Birmingham Cross Country & AC | 1 | 1 | University of Birmingham Cross Country & AC home page |
| Steel City Striders RC | 1 | 1 | Steel City Striders RC home page |
| West Hull Ladies | 1 | 2 | West Hull Ladies home page |
| Grantham Running Club | 1 | 1 | Grantham Running Club home page |
| Chew Valley Snails | 1 | 1 | Chew Valley Snails home page |
| War Horse Runners | 1 | 1 |
|
| Great Western Runners | 1 | 1 | Great Western Runners home page |
| Bedford Harriers AC | 1 | 1 | Bedford Harriers AC home page |
| Bushfield Joggers | 1 | 1 | Bushfield Joggers home page |
| Portobello RC | 1 | 4 | Portobello RC home page |
| Sarn Helen Club | 1 | 2 | Sarn Helen Club home page |
| Clapham Pioneers | 1 | 1 | Clapham Pioneers home page |
| Ally Pally Runners | 1 | 1 | Ally Pally Runners home page |
| Sheen Shufflers | 1 | 1 | Sheen Shufflers home page |
| Witney Road Runners | 1 | 1 | Witney Road Runners home page |
| Chineham Park Running Club | 1 | 1 | Chineham Park Running Club home page |
| University of Bath Triathlon Club | 1 | 2 | University of Bath Triathlon Club home page |
| Somerset RC Tri | 1 | 2 | Somerset RC Tri home page |
| Dulwich Park RC | 1 | 1 | Dulwich Park RC home page |
| Vale Royal AC | 1 | 1 | Vale Royal AC home page |
| Shropshire Shufflers | 1 | 1 | Shropshire Shufflers home page |
| Lynnsport Ladybirds | 1 | 1 | Lynnsport Ladybirds home page |
| Grampian Orienteers | 1 | 3 | Grampian Orienteers home page |
| Clwb Rhedeg Pontardawe Running Club | 1 | 1 |
|
| Ardeley Runners | 1 | 1 |
|
| Kingfisher Triathletes | 1 | 1 | Kingfisher Triathletes home page |
| Egdon Heath Harriers | 1 | 1 | Egdon Heath Harriers home page |
| Mornington Chasers | 1 | 1 | Mornington Chasers home page |
| Oxford Tri | 1 | 1 | Oxford Tri home page |
| NA | 1 | 5 |
|
| Muddy Race Team | 1 | 3 | Muddy Race Team home page |
| Westcroft Triathlon Club | 1 | 1 | Westcroft Triathlon Club home page |
| Winchester Fit Club RC | 1 | 1 |
|
| Havering '90 Joggers | 1 | 1 | Havering '90 Joggers home page |
| Brentwood Running Club | 1 | 1 | Brentwood Running Club home page |
| RunFit Essex | 1 | 1 | RunFit Essex home page |
| OCR Wrongens | 1 | 3 |
|
| Climb South West Trail Team | 1 | 1 | Climb South West Trail Team home page |
| Epsom Allsorts | 1 | 1 | Epsom Allsorts home page |
| Baildon Runners | 1 | 1 | Baildon Runners home page |
| Caerleon RC | 1 | 26 | Caerleon RC home page |
| Queensbury RC | 1 | 1 | Queensbury RC home page |
| Ravenscourt Park Runners | 1 | 1 |
|
| Morley Running Club | 1 | 1 | Morley Running Club home page |
