Stadion: Centre Court Round: 27 Ground: Hardcourt indoor
| Challenger - Glasgow - Herrendoppel | 2018/05/02 17:30 | Clayton/O'Mara v Moriya/Uchida | 6-7,6-2,10-5 |
| Challenger - Bergamo - Herrendoppel | 2018/02/24 15:30 | Grigelis/Motti v Clayton/O'Mara | 7-5,3-6,13-15 |
| Challenger - Bergamo - Herrendoppel | 2018/02/23 11:10 | Junaid/Zelenay v Clayton/O'Mara | 6-3,6-7,8-10 |
| Challenger - Bergamo - Herrendoppel | 2018/02/22 09:30 | Clayton/O'Mara v Arneodo/Weissborn | 6-3,7-6 |
| Challenger - Budapest - Herrendoppel | 2018/02/08 17:00 | Auger Aliassime/Kuhn v Clayton/O'Mara | 7-5,7-6 |
| Challenger - Budapest - Herrendoppel | 2018/02/06 16:00 | Balazs/Borsos v Clayton/O'Mara | 3-6,4-6 |
| Challenger - Rennes - Herrendoppel | 2018/01/23 13:10 | Clayton/O'Mara v Brown/Pel | 4-6,7-6,8-10 |
| Challenger - Bangalore - Herrendoppel | 2017/11/21 10:20 | Khabibulin/Nedovyesov v Clayton/O'Mara | 6-4,4-6,10-7 |
| Challenger - Glasgow - Herrendoppel | 2018/05/01 15:10 | Glasspool/Ward v Fruttero/Sijsling | 6-7,6-2,6-10 |