Stadium: Court 5 Round: 25 Ground: Hardcourt outdoor
| Challenger Scheveningen | 2018/07/17 13:15 | Lloyd Harris v Nicola Kuhn | 1-6,7-6,3-6 |
| Challenger Bastad | 2018/07/11 09:00 | Filip Horansky v Lloyd Harris | 7-6,6-4 |
| Challenger Bastad | 2018/07/10 09:00 | Lloyd Harris v Henri Laaksonen | 6-4,6-4 |
| Challenger Marburg | 2018/07/03 12:45 | Thomaz Bellucci v Lloyd Harris | 6-7,6-4,6-4 |
| Wimbledon Qual | 2018/06/25 10:00 | Mats Moraing v Lloyd Harris | 6-4,6-2 |
| Challenger Ilkley Qual | 2018/06/16 18:35 | Lloyd Harris v John-Patrick Smith | 6-7,3-6 |
| French Open Qual | 2018/05/21 13:20 | Felix Auger Aliassime v Lloyd Harris | 6-4,6-3 |
| Challenger Samarkand | 2018/05/17 12:00 | Uladzimir Ignatik v Lloyd Harris | 6-3,6-3 |
| Challenger Winnipeg | 2018/07/10 16:20 | Andrew Harris v Marcel Granollers | 3-6,4-6 |
| ITF USA F19 | 2018/07/07 15:30 | Aleksandar Vukic v Andrew Harris | 6-2,6-4 |
| ITF USA F19 | 2018/07/06 15:00 | Brandon Holt v Andrew Harris | 0-6,0-6 |
| ITF USA F19 | 2018/07/05 15:40 | Jordi Arconada v Andrew Harris | 4-6,2-6 |
| ITF USA F19 | 2018/07/04 16:20 | Roy Smith v Andrew Harris | 5-7,1-6 |
| Challenger Guadalajara Qual | 2018/04/14 22:10 | Andrew Harris v Brydan Klein | 2-6,7-5,6-7 |
| ITF Australia F4 | 2018/03/30 03:00 | Andrew Harris v James Frawley | 7-5,6-4 |
| ITF Australia F4 | 2018/03/29 00:00 | Andrew Harris v Michael Look | 6-4,6-4 |