Below is a list of runners who have reached 100 marathons in 2018 along with the event and date this milestone was reached.
| Gemma Colling | SVN New Years Eve | 31-Dec-18 | |
| Melanie Jewett | Portsmouth Coastal | 23-Dec-18 | |
| Paul Nicholls | Leeds & Liverpool Christmas Cracker | 08-Dec-18 | |
| Caroline Williams | SVN Clown Challenge | 25-Nov-18 | |
| Andy Pittman | SVN Samphire Hoe | 23-Sep-18 | |
| Gareth Allen | Phoenix Riverside | 18-Nov-18 | |
| Paul Coates | Phoenix Riverside | 18-Nov-18 | |
| Simon Kirby | Hell Of A Hill Day 3 | 16-Nov-18 | |
| David Kingsland | SVN Armistice Day | 11-Nov-18 | |
| Graham Malt | Phoenix Remembrance Run | 11-Nov-18 | |
| Julia Booker | Phoenix Remembrance Run | 11-Nov-18 | |
| Sarah Marshall | Phoenix Dinosaur Dash | 10-Nov-18 | |
| Sophie Ravenscroft | Meon Valley | 04-Nov-18 | |
| Peter Hall | Cornish | 04-Nov-18 | |
| Stephen Knell | Cornish (event full membership attained) | 04-Nov-18 | |
| Jacqueline Reid | Dublin | 29-Oct-18 | |
| Lesley Morrill | SVN Betteshanger Marathon | 28-Oct-18 | |
| Gary Barnes | Beachy Head | 27-Oct-18 | |
| Mark Bastick | Enigma Three Lakes | 25-Oct-18 | |
| David Ames | Munich | 14-Oct-18 | |
| Alan Middlebrook | Xnrg Pony Express | 13-Oct-18 | |
| Paul Coe | Phoenix Its A Numbers Game | 07-Oct-18 | |
| Rob Beech | Chester | 07-Oct-18 | |
| Jon Evans | Chester | 07-Oct-18 | |
| Dominic Scott | Chester | 07-Oct-18 | |
| Sean Symonds | Great Barrow Autumn Day 1 | 06-Oct-18 | |
| Zophanie Vazquez-Howard | Phoenix Its A Numbers Game Day 1 | 06-Oct-18 | |
| Dawn Davis | Loch Ness | 23-Sep-18 | |
| Jayne Woodhouse | Enigma Toys In The Attic Day 2 | 22-Sep-18 | |
| Andrew Cole | GB Ultras Snowdon 50 | 22-Sep-18 | |
| Liam Smith | Kilkenny | 15-Sep-18 | |
| Jonathan White | Phoenix Once Upon A Run Day 3 | 01-Sep-18 | |
| Mike Hoskin | City To Sea | 01-Sep-18 | |
| Chris Beard | Phoenix Once Upon A Run Day 1 | 30-Aug-18 | |
| Norman Abadiano | SVN Cyclopark 10in10 D10 | 27-Aug-18 | |
| Julie White | East Farm Frolic | 26-Aug-18 | |
| Steve Harlowe | WSR East Farm | 25-Aug-18 | |
| Richard Dodge | WSR East Farm | 25-Aug-18 | |
| Ken Davison | Edmonton | 19-Aug-18 | |
| Megan Lennox | Phoenix Summer Marathon | 04-Aug-18 | |
| Lesley Coulton | Enigma Show Me The Money | 28-Jul-18 | |
| David Darton | Twilight Marathon (Ilford) | 28-Jul-18 | |
| Colin Lea | Twilight Marathon (Ilford) | 28-Jul-18 | |
| Hayley Brewis | SVN Lucky Dip | 22-Jul-18 | |
| Olivia Stacey | SVN Lucky Dip | 22-Jul-18 | |
| Tobias Cooper | SVN Ghost of Cyclopark | 15-Jul-18 | |
| Allan Price | Lakeland Ultra 55K | 08-Jul-18 | |
| Richard Stones | Snickerton | 30-Jun-18 | |
| Maurice Hemingway | Great Barrow Challenge D3 | 30-Jun-18 | |
| Vicki Hulme | SVN Kent 50 | 23-Jun-18 | |
| Laurence Hylton | Thames Path Potter | 10-Jun-18 | |
| Daniel Kershaw | Stratheran | 10-Jun-18 | |
| Andy Pumphrey | South Downs Way 100 | 09-Jun-18 | |
| James Welfare | SVN Dambusters | 03-Jun-18 | |
| Debbie Pitt | Huddersfield | 03-Jun-18 | |
| Gill Mitchell | Stockholm | 02-Jun-18 | |
| Richard Keatley | Dartmoor Discovery | 02-Jun-18 | |
| Patrick Munn | Dartmoor Discovery | 02-Jun-18 | |
| James Welfare | SVN Spring Cakeathon | 28-May-18 | |
| Lucy Fern | SVN Jeskyns | 27-May-18 | |
| Kay Morris | Dorchester | 27-May-18 | |
| Lorriane Croucher | SVN Mega Challenge | 26-May-18 | |
| David Joynson | Liverpool | 20-May-18 | |
| Peter Hutchinson | Windermere | 20-May-18 | |
| Paul Owen | Richmond Park | 20-May-18 | |
| Adrian Brooks | Brathay Windemere Day 8 | 18-May-18 | |
| Paul Bird | Wendover Challenge | 17-May-18 | |
| Andrew Golding | Halstead & Essex | 13-May-18 | |
| Christine Howard | LDWA South Downs | 13-May-18 | |
| Mark Fresch | Votwo Devon Coastal Challenge Day2 | 12-May-18 | |
| Zoe Cook | SVN Cookiethon | 07-May-18 | |
| Marc Potter | Roche Abbey | 06-May-18 | |
| Annie Dougall | Xnrg South Downs Devils Challenge Day 1 | 05-May-18 | |
| Martin Salmon | SVN Rachel's Ranscombe Ramble | 29-Apr-18 | |
| Gary Fowle | SVN Spring Ranscombe | 28-Apr-18 | |
| Jo Peasland | London | 22-Apr-18 | |
| Janine Simpson | London | 22-Apr-18 | |
| Paula Downing | London | 22-Apr-18 | |
| Elaine McAnulty | EAMS Not The London Marathon | 22-Apr-18 | |
| Janine Simpson | London | 22-Apr-18 | |
| Rachel Everett | SVN Reject Run | 22-Apr-18 | |
| Lee Edwards | Brighton | 15-Apr-18 | |
| Chris Chandler | SVN Betteshanger | 14-Apr-18 | |
| Steve Bassam | Manchester | 08-Apr-18 | |
| Richard Rex | Manchester | 08-Apr-18 | |
| Leon Hicks | Phoenix Leon the Runner | 08-Apr-18 | |
| Jonathan Ward | SVN RAF Centenary Challenge | 01-Apr-18 | |
| Teresa Oaks | Larmer Tree | 11-Mar-18 | |
| Wendy Dale | Tokyo | 25-Feb-18 | |
| James Kelly | Beleek Day 2 | 25-Feb-18 | |
| Simon Staples | Phoenix Jaw Dropper | 17-Feb-18 | |
| Emma Lewis | Phoenix Greased Lightning | 16-Feb-18 | |
| Martin Neal | Enigma Quadzilla Day 3 | 03-Feb-18 | |
| David Manson | SVN Hugin | 22-Jan-18 | |
| Phil Hoy | Winter Tanners | 21-Jan-18 | |
| Ian Vallance | Enigma Winter Day 2 | 07-Jan-18 |