Stadium: Court 4 Round: 25 Ground: Hardcourt indoor
| Challenger Glasgow | 2019/09/17 09:00 | Roberto Marcora v Luke Johnson | 7-6,6-0 |
| Challenger Glasgow | 2019/09/16 11:25 | Luke Johnson v Sem Verbeek | 1-6,6-3,7-6 |
| ITF M15 Sao Bras Alportel | 2019/09/07 11:15 | Fred Gil v Luke Johnson | 7-6,7-5 |
| ITF M15 Sao Bras Alportel | 2019/09/06 09:00 | Tiago Cacao v Luke Johnson | 6-4,2-6,4-6 |
| ITF M15 Sao Bras Alportel | 2019/09/05 09:00 | Nicolas Moreno De Alboran v Luke Johnson | 3-6,7-6,6-7 |
| ITF M15 Sao Bras Alportel | 2019/09/03 11:30 | John Echeverria v Luke Johnson | 6-7,1-6 |
| ITF M15 Piombino | 2019/08/27 17:05 | Benjamin Pietri v Luke Johnson | 6-4,6-3 |
| ITF M25 Chiswick | 2019/08/06 11:10 | Lucas Poullain v Luke Johnson | 1-6,7-6,6-3 |
| ITF M25 Shrewsbury | 2019/09/23 13:15 | Daniel Little v Josip Krstanovic | 4-6,4-6 |
| ITF M25 Shrewsbury | 2019/09/23 08:30 | Luke Henley v Josip Krstanovic | 7-6,1-6,9-11 |
| ITF M15 Szekesfehervar | 2019/09/02 08:00 | Josip Krstanovic v Antun Vidak | 6-7,6-7 |
| ITF M15 Szekesfehervar | 2019/09/01 08:00 | Francesco Ferrari v Josip Krstanovic | 3-6,4-6 |
| ITF Serbia F1 Qual | 2017/08/06 09:30 | Calin Manda v Josip Krstanovic | 5-7,6-3,6-4 |
| ITF Austria F5 | 2017/07/31 09:50 | Josip Krstanovic v Michalis Sakellaridis | 6-2,4-6,4-6 |
| ITF Austria F5 | 2017/07/30 08:00 | Josip Krstanovic v Edward Hubner | 6-2,6-1 |
| ITF Austria F5 | 2017/07/29 08:00 | Nicolas Xiviller v Josip Krstanovic | 6-2,4-6,3-6 |