Stadium: Court 1 Round: 28 Ground: Clay
| ITF Australia F1 | 2015/02/26 01:15 | Jacob Grills v Christopher O'Connell | 6-4,4-6,6-3 |
| ITF Australia F3 | 2014/03/04 23:00 | Jacob Grills v Christopher O'Connell | 3-6,2-6 |
| ITF M15 Vale Do Lobo | 2019/02/24 11:00 | Finn Tearney v Jacob Grills | 6-2,2-6,6-4 |
| ITF M15 Vale Do Lobo | 2019/02/23 11:00 | Henry Craig v Jacob Grills | 4-6,6-3,6-7 |
| ITF M15 Vale Do Lobo | 2019/02/22 11:00 | Lamine Ouahab v Jacob Grills | 3-6,2-6 |
| ITF M15 Vale Do Lobo | 2019/02/21 13:15 | Luis Faria v Jacob Grills | 6-3,4-6,2-6 |
| ITF M15 Vale Do Lobo | 2019/02/19 15:55 | Nicholas David Ionel v Jacob Grills | 7-5,6-7,4-6 |
| ITF M25 Barnstaple | 2019/02/12 10:00 | Jacob Grills v Tobias Simon | 6-7,3-6 |
| Challenger Launceston | 2019/01/29 23:00 | Jacob Grills v Tatsuma Ito | 2-6,4-6 |
| Challenger Launceston | 2019/01/28 23:00 | Jacob Grills v Alessandro Bega | 6-7,6-2,6-3 |
| Challenger Launceston | 2019/01/27 23:00 | Blake Ellis v Christopher O'Connell | 7-6,6-4 |
| Challenger Burnie | 2019/01/23 06:30 | Christopher O'Connell v Go Soeda | 4-6,2-6 |
| Challenger Burnie | 2019/01/21 23:00 | Di Wu v Christopher O'Connell | 6-7,6-7 |
| ATP Sydney | 2019/01/06 00:00 | Christopher O'Connell v Guido Andreozzi | 6-4,4-6,3-6 |
| ATP Brisbane | 2018/12/29 06:25 | Cristian Garin v Christopher O'Connell | 6-4,6-4 |
| Australian Open WC | 2018/12/10 01:00 | Maverick Banes v Christopher O'Connell | 6-4,7-6,6-0 |
| ITF Turkey F35 | 2018/11/06 09:00 | Christopher O'Connell v Wilson Leite | 3-6,6-2,5-7 |
| ITF Turkey F35 | 2018/11/05 07:00 | Christopher O'Connell v Edward Hubner | 6-2,6-4 |