Below is a list of runners who have reached 100 marathons in 2016 along with the event and date this milestone was reached.
| Colin Grace | 29-Dec-16 | Great Barrow |
| Laura Penny | 17-Dec-16 | Usual Suspects |
| Apryl Hammett | 18-Dec-16 | Usual Suspects |
| Martyn Ewers | 10-Dec-16 | Enigma Christmas |
| Steve Knell | 03-Dec-16 | CTS Dorset |
| Karsten Koehler | 18-Nov-16 | Steppingly Step |
| Darren Rowe | 05-Nov-16 | Enigma Fireworks |
| Philip McAvoy | 29-Oct-16 | Snowdonia |
| Andrew Cooksey | 29-Oct-16 | Snowdonia |
| Paul Blackwell | 23-Oct-16 | Cakeathon - Awaiting final #100 spreadsheet update |
| Susie Hewer | 23-Oct-16 | Autumn Cakeathon |
| Maryanne Aitken | 22-Oct-16 | Betteshanger Marathon |
| Elizabeth Vassell | 16-Oct-16 | Tigger Bounceathon |
| Kirsty Winwood | 16-Oct-16 | Tigger Bounceathon |
| Dick Chivers | 16-Oct-16 | Lake Gardia |
| Paul Blackwell | 16-Oct-16 | Winnie the Pooh Wander |
| Steve Taplin | 15-Oct-16 | Winnie the Pooh Wander |
| Anastasia Lincoln | 09-Oct-16 | Yorkshire Marathon |
| Phil Hammond | 09-Oct-16 | Yorkshire Marathon |
| Paul Jacobs | 25-Sep-16 | Robin Hood - Awaiting final #100 spreadsheet update |
| Carol Rattigan | 25-Sep-16 | Barnstaple |
| Romain Fleurette | 19-Sep-16 | Marathon des Chateaux du MEDOC |
| Debbie Stirling | 17-Sep-16 | Beerathon - Awaiting final #100 spreadsheet update |
| Naomi Bennett | 11-Sep-16 | New Forest |
| Julia Molyneux | 11-Sep-16 | Bacchus - Awaiting final #100 spreadsheet update |
| Carol Goodwin | 11-Sep-16 | Thetford Iceni |
| Kristian Morgan | 04-Sep-16 | Wolverhampton - Awaiting final #100 spreadsheet update |
| Dan Micola | 28-Aug-16 | Enigma Planes, Trains & Automobiles |
| Nicholas Genever | 21-Aug-16 | Leilas Run |
| Mark Blanchard | 21-Aug-16 | Leilas Run - Awaiting final #100 spreadsheet update |
| Jason Hayes | 14-Aug-16 | Hardmoors Wainstones |
| Paul McKay | 07-Aug-16 | Hoad Hill |
| Sharief Ibrahim | 06-Aug-16 | Phoenix Summer |
| Stuart Mellows | 30-Jul-16 | Enigma World Cup |
| Michelle Atkins | 22-Jul-16 | Enigma Schools Out |
| Georgina Townsend | 09-Jul-16 | Summer Ranscombe |
| Ade Holloway | 03-Jul-16 | Littledown Marathon |
| Brian Newham | 03-Jul-16 | Leeds Liverpool Canal Canter |
| Ercole Lugari | 02-Jul-16 | Midnight Marathon |
| Sue Osbourne | 02-Jul-16 | Great Barrow |
| Guy Williams | 01-Jul-16 | Somme Centenary Challenge |
| Carolyn Thomson Easter | 26-Jun-16 | Giants Head |
| Mick Davidson | 26-Jun-16 | Great Barrow |
| Susan Foot | 25-Jun-16 | Great Barrow |
| Phil Adams | 22-Jan-16 | Anglesey CTS |
| Gennady Gafarov | 19-Jun-16 | Marathon du Vignoble d'Alsace |
| Paul Scholte | 18-Jun-16 | Malvern |
| Nuala Smyth | 18-Jun-16 | South Downs Marathon |
| Mark Wotton | 04-Jun-16 | Dartmoor Discovery |
| Paulo Margelino | 28-May-16 | Liverpool Rock and Roll |
| Glen Keegan | 28-May-16 | Kent Roadrunner |
| Cass Chisholm | 28-May-16 | GUCR |
| Stuart Smith | 22-May-16 | The Ox |
| Adam Tysoe | 21-May-16 | Shin Dig in the Shire |
| George Fairbrother | 08-May-16 | Halstead |
| Richard Jones | 08-May-16 | Independance Series NY |
| Nick Nicholson | 02-May-16 | May Bank Holiday Cakeathon |
| Andy Horsley | 01-May-16 | North Dorset Village |
| Jerry Shield | 01-May-16 | North Dorset Village |
| Nick Butcher | 30-Apr-16 | Thames Path 100 |
| David Durnin | 30-Apr-16 | Rotorua - Awaiting final #100 spreadsheet update |
| Surinder Bhakar | 23-Apr-16 | St Georges Day |
| Lisa Jackson | 16-Apr-16 | Fowlmead 12hr Challenge |
| Emine Ismail de Sanchez | 10-Apr-16 | Rachel's Ranscombe Ramble |
| James Bennett | 09-Apr-16 | Ranscombe Spring |
| Dan Gritton | 03-Apr-16 | Freiburg Marathon |
| Bernard Genge | 03-Apr-16 | Taunton |
| Steve Platt | 14-Sep-16 | Hills and Dales |
| Gillian Verdin | 20-Mar-16 | Gin Pit Marathon |
| Rachel Armstrong | 20-Mar-16 | LDWA Pick & Mix |
| David Brett | 19-Mar-16 | CTS Essex |
| Greg Ashley | 19-Mar-16 | Engima Week at the Knees |
| Lisa Hale | 12-Mar-16 | Thames Meander |
| Andy Kinney | 28-Feb-16 | Relativity Run |
| Jacqueline Millett | 28-Feb-16 | Toyko Marathon |
| Philip Rand | 27-Feb-16 | Chocathon |
| Andrew Burgess | 27-Feb-16 | Chocathon |
| Gary Wayman | 21-Feb-16 | The Good, The Bad & The Ugly Marathon |
| Ulen Neale | 20-Feb-16 | 100 AGM Marathon |
| Andy Rennie | 14-Feb-16 | Austin, TX |
| Paul Davies | 07-Feb-16 | Enigma Quadzilla |
| Seamus Dornan | 07-Feb-16 | Clonakilty Marathon |
| Jo Yarnall | 23-Jan-16 | Dymchurch Marathon |
| David Clare | 17-Jan-16 | Jeskyns Challenge |
| Alexandra Portwine | 16-Jan-16 | Ranscombe Winter Challenge |