| Sudbury Joggers | 105 | 4948 | Sudbury Joggers home page  |
| Colchester Harriers AC | 56 | 684 | Colchester Harriers AC home page |
| TRI Sudbury | 52 | 1343 | TRI Sudbury home page |
| Haverhill RC | 42 | 102 | Haverhill RC home page |
| Halstead RRC | 35 | 268 | Halstead RRC home page |
| Saint Edmund Pacers | 25 | 242 | Saint Edmund Pacers home page |
| Hadleigh Hares AC | 22 | 123 | Hadleigh Hares AC home page |
| Great Bentley RC | 18 | 21 | Great Bentley RC home page |
| Stowmarket Striders RC | 18 | 36 | Stowmarket Striders RC home page |
| Running Colchester | 17 | 42 |
|
| Harwich Runners | 16 | 52 | Harwich Runners home page |
| Felixstowe RRC | 16 | 21 | Felixstowe RRC home page |
| Ipswich JAFFA RC | 15 | 58 | Ipswich JAFFA RC home page |
| 5 Star Boot Camps | 15 | 71 | 5 Star Boot Camps home page |
| S C Fitness | 14 | 630 | S C Fitness home page |
| Michelle's Running Group | 13 | 20 |
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| Springfield Striders RC | 13 | 268 | Springfield Striders RC home page |
| Braintree & District AC | 12 | 92 | Braintree & District AC home page |
| West Suffolk AC | 11 | 97 | West Suffolk AC home page |
| St Edmunds Pacers | 11 | 43 | St Edmunds Pacers home page |
| Vegan Runners | 10 | 38 | Vegan Runners home page |
| Jogging Made Easy | 9 | 42 | Jogging Made Easy home page |
| Witham RC | 9 | 103 | Witham RC home page |
| 26.2 RRC | 8 | 9 | 26.2 RRC home page |
| Newmarket Joggers | 8 | 32 | Newmarket Joggers home page |
| Mid Essex Casuals | 8 | 25 | Mid Essex Casuals home page |
| Kesgrave Kruisers | 7 | 7 | Kesgrave Kruisers home page |
| Tiptree Road Runners | 7 | 8 | Tiptree Road Runners home page |
| East London Runners | 7 | 8 | East London Runners home page |
| Grange Farm and Dunmow Runners | 6 | 13 | Grange Farm and Dunmow Runners home page |
| Lonely Goat RC | 6 | 66 | Lonely Goat RC home page |
| St Radegund RDC | 6 | 6 | St Radegund RDC home page |
| Sweatshop Running Community | 5 | 5 | Sweatshop Running Community home page |
| Serpentine RC | 5 | 8 | Serpentine RC home page |
| Dereham Runners AC | 5 | 6 | Dereham Runners AC home page |
| Rushmere Community Runners | 5 | 7 | Rushmere Community Runners home page |
| Colchester & Tendring AC | 5 | 53 | Colchester & Tendring AC home page |
| Castle Point Joggers | 5 | 5 | Castle Point Joggers home page |
| Ranelagh Harriers | 5 | 7 | Ranelagh Harriers home page |
| Chichester Runners & AC | 4 | 8 | Chichester Runners & AC home page |
| Saffron Striders RC | 4 | 23 | Saffron Striders RC home page |
| Ilford AC | 4 | 12 | Ilford AC home page |
| Boxted Runners | 4 | 13 |
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| Framlingham Flyers | 4 | 106 | Framlingham Flyers home page |
| Ipswich Harriers | 4 | 7 | Ipswich Harriers home page |
| Nuclear Races Striders | 4 | 41 |
|
| Suffolk Orienteering Club | 4 | 11 | Suffolk Orienteering Club home page |
| Pitsea RC | 4 | 4 | Pitsea RC home page |
| Mersea Island Hash House Harriers | 4 | 4 |
|
| Loughton AC | 3 | 6 | Loughton AC home page |
| Ealing Eagles Running Club | 3 | 3 | Ealing Eagles Running Club home page |
| London FrontRunners | 3 | 3 | London FrontRunners home page |
| Bungay Black Dog RC | 3 | 4 | Bungay Black Dog RC home page |
| Run Eat Sleep - South Shields | 3 | 3 | Run Eat Sleep - South Shields home page |
| Run For Your Life | 3 | 5 |
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| Newbury AC | 3 | 3 | Newbury AC home page |
| London Heathside | 3 | 8 | London Heathside home page |
| GoodGym | 3 | 3 | GoodGym home page |
| West Suffolk Wheelers and Triathlon Club | 3 | 8 | West Suffolk Wheelers and Triathlon Club home page |
| Dulwich Runners AC | 3 | 3 | Dulwich Runners AC home page |
| Suffolk Trail Runners | 3 | 3 | Suffolk Trail Runners home page |
| Hash House Harriers | 3 | 3 | Hash House Harriers home page |
| Ipswich Triathlon Club | 3 | 7 | Ipswich Triathlon Club home page |
| Shepshed RC | 3 | 3 | Shepshed RC home page |
| Dartford Road Runners | 3 | 4 | Dartford Road Runners home page |
| UK parkrun tourists | 3 | 3 |
|
| Pershore Plum Plodders | 3 | 6 | Pershore Plum Plodders home page |
| Norfolk Gazelles AC | 3 | 4 | Norfolk Gazelles AC home page |
| Tri Sport Epping | 2 | 2 | Tri Sport Epping home page |
| Cambridge Canoe Club | 2 | 2 |
|
| Company of Runners | 2 | 8 | Company of Runners home page |
| Parkside Running & Fitness | 2 | 2 | Parkside Running & Fitness home page |
| City of Norwich AC | 2 | 2 | City of Norwich AC home page |
| City of London Freemens School | 2 | 4 | City of London Freemens School home page |
| Charles Derby Vitality Club | 2 | 12 | Charles Derby Vitality Club home page |
| Cambridge and Coleridge AC | 2 | 2 | Cambridge and Coleridge AC home page |
| The Commando Runners | 2 | 8 | The Commando Runners home page |
| CSSC Sports & Leisure | 2 | 7 | CSSC Sports & Leisure home page |
| Run 4 MS | 2 | 2 | Run 4 MS home page |
| Eye Community Runners | 2 | 2 | Eye Community Runners home page |
| Craig's layer boot camp | 2 | 3 | Craig's layer boot camp home page |
| Harlow RC | 2 | 2 | Harlow RC home page |
| North York Moors Athletic Club | 2 | 2 | North York Moors Athletic Club home page |
| The Salvation Army | 2 | 2 | The Salvation Army home page |
| Clapham Chasers RC | 2 | 2 | Clapham Chasers RC home page |
| Berkshire Tri | 2 | 2 |
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| Fen Edge Runners | 2 | 2 |
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| Capel Cheetahs | 2 | 2 | Capel Cheetahs home page |
| Rock Runners | 2 | 5 | Rock Runners home page |
| Riverside Runners | 2 | 4 | Riverside Runners home page |
| Bramhall Runners | 2 | 2 | Bramhall Runners home page |
| Lordshill Road Runners | 2 | 2 | Lordshill Road Runners home page |
| Headington RRC | 2 | 2 | Headington RRC home page |
| Bildeston Bounders AC | 2 | 2 |
|
| March AC | 2 | 2 | March AC home page |
| Tailenders | 2 | 2 | Tailenders home page |
| Wimbledon Windmilers | 2 | 6 | Wimbledon Windmilers home page |
| Chiltern Church Runners | 2 | 2 | Chiltern Church Runners home page |
| Little Baddow Ridge RC | 2 | 2 |
|
| South London Harriers | 2 | 2 | South London Harriers home page |
| Coltishall Jaguars | 2 | 2 | Coltishall Jaguars home page |
| BC Revolution | 2 | 2 | BC Revolution home page |
| Meon Valley Runners | 2 | 12 | Meon Valley Runners home page |
| Todmorden Harriers & AC | 2 | 3 | Todmorden Harriers & AC home page |
| Stragglers | 2 | 2 | Stragglers home page |
| Wymondham AC | 2 | 2 | Wymondham AC home page |
| Woodbridge Shufflers RRC | 2 | 3 | Woodbridge Shufflers RRC home page |
| East End Road Runners | 2 | 2 | East End Road Runners home page |
| Yeovil Town RRC | 1 | 9 | Yeovil Town RRC home page |
| Basildon AC | 1 | 1 | Basildon AC home page |
| BRJ Run and Tri | 1 | 1 | BRJ Run and Tri home page |
| Grampian Orienteers | 1 | 2 | Grampian Orienteers home page |
| Hayes & Harlington Road Runners | 1 | 1 | Hayes & Harlington Road Runners home page |
| Fenland Running Club | 1 | 1 | Fenland Running Club home page |
| Tonbridge AC | 1 | 1 | Tonbridge AC home page |
| Ryde Harriers | 1 | 1 | Ryde Harriers home page |
| NA | 1 | 5 |
|
| Parklands Jog and Run | 1 | 8 | Parklands Jog and Run home page |
| Striders of Croydon AC | 1 | 1 | Striders of Croydon AC home page |
| Caerleon RC | 1 | 23 | Caerleon RC home page |
| Wrekin Road Runners | 1 | 80 | Wrekin Road Runners home page |
| West Lothian Triathlon | 1 | 1 |
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| Grantham Running Club | 1 | 1 | Grantham Running Club home page |
| Clwb Rhedeg Pontardawe Running Club | 1 | 1 |
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| Brighouse Bumble Bees | 1 | 1 |
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| Bitton Road Runners | 1 | 1 | Bitton Road Runners home page |
| Trent Park Running Club | 1 | 1 | Trent Park Running Club home page |
| Chigwell and Epping Forest Orienteering Club | 1 | 1 | Chigwell and Epping Forest Orienteering Club home page |
| Willesden Triathlon Club | 1 | 2 | Willesden Triathlon Club home page |
| UKRunChat Running Club | 1 | 4 | UKRunChat Running Club home page |
| Road Runners Club | 1 | 9 | Road Runners Club home page |
| Maidstone Harriers | 1 | 1 | Maidstone Harriers home page |
| British Army | 1 | 1 |
|
| Ogmore Phoenix Runners | 1 | 1 | Ogmore Phoenix Runners home page |
| Barnet and District AC | 1 | 1 | Barnet and District AC home page |
| Garden City Runners | 1 | 1 | Garden City Runners home page |
| BBC RC | 1 | 1 |
|
| North Devon RR | 1 | 1 | North Devon RR home page |
| Hercules Wimbledon AC | 1 | 1 | Hercules Wimbledon AC home page |
| Vegetarian Cycling and AC | 1 | 1 | Vegetarian Cycling and AC home page |
| Ryston Runners AC | 1 | 1 | Ryston Runners AC home page |
| Knutsford Tri Club | 1 | 6 | Knutsford Tri Club home page |
| Worthy Runners | 1 | 1 | Worthy Runners home page |
| Slinn Allstars | 1 | 1 | Slinn Allstars home page |
| Transport for London parkrun Club | 1 | 1 |
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| Garscube Harriers | 1 | 1 | Garscube Harriers home page |
| Alchester RC | 1 | 1 | Alchester RC home page |
| UKnetrunner | 1 | 1 | UKnetrunner home page |
| Reading Joggers | 1 | 2 | Reading Joggers home page |
| Clapham Pioneers | 1 | 1 | Clapham Pioneers home page |
| Rebel Runners ~ Medway | 1 | 1 | Rebel Runners ~ Medway home page |
| Kingston Lacy Running Group | 1 | 3 |
|
| St Helens Striders | 1 | 1 | St Helens Striders home page |
| Great Yarmouth Road Runners | 1 | 1 | Great Yarmouth Road Runners home page |
| Chelmsford Dynamos | 1 | 1 | Chelmsford Dynamos home page |
| Gade Valley Harriers | 1 | 1 | Gade Valley Harriers home page |
| Bedford Harriers AC | 1 | 1 | Bedford Harriers AC home page |
| Cambridge Triathlon Club | 1 | 1 | Cambridge Triathlon Club home page |
| Porter Valley Plodders | 1 | 1 | Porter Valley Plodders home page |
| Run Verity | 1 | 2 | Run Verity home page |
| East Coast Runners | 1 | 1 |
|
| Herne Hill Harriers | 1 | 2 | Herne Hill Harriers home page |
| Hardley Runners | 1 | 1 | Hardley Runners home page |
| Wallsend Harriers & AC | 1 | 1 | Wallsend Harriers & AC home page |
| OCR Wrongens | 1 | 3 |
|
| Team Kennet | 1 | 1 | Team Kennet home page |
| Woodford Green AC with Essex Ladies | 1 | 1 | Woodford Green AC with Essex Ladies home page |
| Chineham Park Running Club | 1 | 1 | Chineham Park Running Club home page |
| Hatch Warren Runners | 1 | 1 | Hatch Warren Runners home page |
| McCarkiss Endurance Project | 1 | 1 | McCarkiss Endurance Project home page |
| Dorking & Mole Valley AC | 1 | 3 | Dorking & Mole Valley AC home page |
| Ely Runners | 1 | 1 | Ely Runners home page |
| Lingfield RC | 1 | 1 | Lingfield RC home page |
| Thetford AC | 1 | 1 | Thetford AC home page |
| Somerset RC Tri | 1 | 2 | Somerset RC Tri home page |
| Sheen Shufflers | 1 | 1 | Sheen Shufflers home page |
| Havering '90 Joggers | 1 | 1 | Havering '90 Joggers home page |
| Dacorum & Tring AC | 1 | 1 | Dacorum & Tring AC home page |
| Pegasus RC (Cardiff) | 1 | 1 | Pegasus RC (Cardiff) home page |
| Oxford Tri | 1 | 1 | Oxford Tri home page |
| Bure Valley Harriers | 1 | 1 | Bure Valley Harriers home page |
| Ally Pally Runners | 1 | 1 | Ally Pally Runners home page |
| Bideford AAC | 1 | 1 | Bideford AAC home page |
| Baildon Runners | 1 | 1 | Baildon Runners home page |
| Cambridge University Hare and Hounds | 1 | 22 | Cambridge University Hare and Hounds home page |
| Stubbington Green Runners | 1 | 1 | Stubbington Green Runners home page |
| Roundhay Runners | 1 | 1 | Roundhay Runners home page |
| Flyers Southend | 1 | 1 | Flyers Southend home page |
| Gresham Gazelles | 1 | 1 |
|
| Ware Joggers | 1 | 3 | Ware Joggers home page |
| Sale Harriers Manchester | 1 | 1 | Sale Harriers Manchester home page |
| Hedge End Running Club | 1 | 1 | Hedge End Running Club home page |
| Singapore Shufflers | 1 | 1 | Singapore Shufflers home page |
| Thames Turbo Triathlon | 1 | 1 | Thames Turbo Triathlon home page |
| Brandon Fern Hoppers | 1 | 20 | Brandon Fern Hoppers home page |
| 100 Marathon Club | 1 | 1 | 100 Marathon Club home page |
| Newmarket Cycling and Triathlon Club | 1 | 1 |
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| run4fun | 1 | 1 | run4fun home page |
| 100% me | 1 | 1 | 100% me home page |
| Winchester Fit Club Runners | 1 | 1 |
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| East Hull Harriers & AC | 1 | 1 | East Hull Harriers & AC home page |
| Linlithgow AAC | 1 | 1 | Linlithgow AAC home page |
| University of Birmingham Cross Country & AC | 1 | 1 | University of Birmingham Cross Country & AC home page |
| Sevenoaks AC | 1 | 5 | Sevenoaks AC home page |
| Leigh on Sea Striders | 1 | 2 | Leigh on Sea Striders home page |
| Bridgnorth Running Club | 1 | 1 | Bridgnorth Running Club home page |
| AXA UK Running Club | 1 | 7 |
|
| Shrewsbury AC | 1 | 1 | Shrewsbury AC home page |
| Dagenham 88 Runners | 1 | 1 | Dagenham 88 Runners home page |
| Petts Wood Runners | 1 | 1 | Petts Wood Runners home page |
| Tri-Anglia | 1 | 1 | Tri-Anglia home page |
| London City Athletics Club | 1 | 1 | London City Athletics Club home page |
| Morley Running Club | 1 | 1 | Morley Running Club home page |
| Bristol and West AC | 1 | 2 | Bristol and West AC home page |
| Team Cherwell | 1 | 1 | Team Cherwell 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 |
| Kingfisher Triathletes | 1 | 1 | Kingfisher Triathletes home page |
| Vale Royal AC | 1 | 1 | Vale Royal AC home page |
| Sarn Helen Club | 1 | 2 | Sarn Helen Club home page |
| DH Runners | 1 | 1 | DH Runners home page |
| RunThrough | 1 | 1 | RunThrough home page |
| Brighton Hash House Harriers | 1 | 1 | Brighton Hash House Harriers home page |
| Worcester AC | 1 | 2 | Worcester AC home page |
| Epsom Allsorts | 1 | 1 | Epsom Allsorts home page |
| Eastbourne Rovers AC | 1 | 1 | Eastbourne Rovers AC home page |
| John Lewis Partnership RC | 1 | 1 |
|
| BlackWater Tri Club | 1 | 1 | BlackWater Tri Club home page |
| Burnham Joggers | 1 | 1 | Burnham Joggers home page |
| Gravesend Road Runners & AC | 1 | 1 | Gravesend Road Runners & AC home page |
| Benfleet RC | 1 | 1 | Benfleet RC home page |
| Stamford Striders | 1 | 21 | Stamford Striders home page |
| Plymouth Musketeers RC | 1 | 1 | Plymouth Musketeers RC home page |
| Storm Plymouth | 1 | 3 | Storm Plymouth home page |
| War Horse Runners | 1 | 1 |
|
| Marshall Milton Keynes AC | 1 | 3 | Marshall Milton Keynes AC home page |
| Oswestry Olympians | 1 | 1 | Oswestry Olympians home page |
| King's Lynn Triathlon Club | 1 | 1 | King's Lynn Triathlon Club home page |
| viewtube runners | 1 | 1 | viewtube runners home page |
| Windle Valley Runners | 1 | 1 | Windle Valley Runners home page |
| Barrow Runners | 1 | 1 | Barrow Runners home page |
| Bristol University Cross Country Club | 1 | 22 | Bristol University Cross Country Club home page |
| Barefoot Runners Society - UK | 1 | 1 | Barefoot Runners Society - UK home page |
| Fulham RC | 1 | 1 | Fulham RC home page |
| Abingdon AC | 1 | 1 | Abingdon AC home page |
| Shropshire Shufflers | 1 | 1 | Shropshire Shufflers home page |
| Muddy Race Team | 1 | 2 | Muddy Race Team home page |
| Bristol Up & Runners | 1 | 1 |
|
| Buckingham & Stowe RC | 1 | 1 | Buckingham & Stowe RC home page |
| Edinburgh Running Network | 1 | 1 | Edinburgh Running Network home page |
| Ravens | 1 | 3 | Ravens home page |
| Vegan Runners | 1 | 4 | Vegan Runners home page |
| Chelmsford AC | 1 | 1 | Chelmsford AC home page |
| Great Western Runners | 1 | 1 | Great Western Runners home page |
| Bishops Stortford RC | 1 | 1 | Bishops Stortford RC home page |
| Steel City Striders RC | 1 | 1 | Steel City Striders RC home page |
| University of West England | 1 | 1 | University of West England home page |
| Ravenscourt Park Runners | 1 | 1 |
|
| Climb South West Trail Team | 1 | 1 | Climb South West Trail Team home page |
| Maiden Newton Runners | 1 | 1 | Maiden Newton Runners home page |
| Corsham RC | 1 | 2 | Corsham RC home page |
| Defence Sports & Recreation | 1 | 1 | Defence Sports & Recreation home page |
| Mudstacle | 1 | 3 | Mudstacle home page |
| South Woodham Runners | 1 | 1 | South Woodham Runners home page |