Stadium: Court 5 Round: 26 Ground: Clay
| Challenger Mexico City - Herredouble | 2018/04/12 01:40 | Lammons/Lawson v Galdos/M-Maceiras | 6-4,3-6,5-10 |
| Challenger Panama City MD | 2018/04/03 18:20 | Arguello/Bagnis v Lammons/Lawson | 7-5,6-3 |
| Challenger St Brieuc - Herredouble | 2018/03/26 12:00 | Mies/Otte v Lammons/Lawson | 7-6,6-4 |
| Challenger Drummondville - Herredouble | 2018/03/16 16:00 | Martinez/Peliwo v Lammons/Lawson | 6-7,6-4,10-8 |
| Challenger Drummondville - Herredouble | 2018/03/15 15:00 | Pavic/Skugor v Lammons/Lawson | 2-6,7-6,6-10 |
| Challenger Drummondville - Herredouble | 2018/03/13 14:00 | Lammons/Lawson v Baadi/Huang | 6-3,7-6 |
| Challenger Bergamo - Herredouble | 2018/02/23 09:30 | Lammons/Lawson v Grigelis/Motti | 3-6,7-6,9-11 |
| Challenger Bergamo - Herredouble | 2018/02/21 17:35 | Gille/Vliegen v Lammons/Lawson | 6-7,6-7 |