Stadium: Court 12 Round: 44 Ground: Hardcourt outdoor
| ITF M15 Caloundra | 2022/07/16 23:00 | Tai Sach v David Barclay | 6-2,6-4 |
| ITF M25 Canberra | 2022/03/26 22:00 | Thijmen Loof v David Barclay | 6-1,6-4 |
| ITF M25 Canberra | 2022/03/21 01:30 | Shuannon Tricerri v David Barclay | 6-2,7-5 |
| ITF M25 Canberra | 2022/03/20 05:15 | Jeremy Zhang v David Barclay | 6-7,6-7 |
| UTR Pro Tennis Series Sydney | 2020/08/22 23:30 | Corey Gaal v David Barclay | 6-4,4-3 |
| UTR Pro Tennis Series Sydney | 2020/08/21 23:30 | David Barclay v Georgije Babic | 4-6,6-7 |
| UTR Pro Tennis Series Sydney | 2020/08/21 01:30 | Adam Taylor v David Barclay | 4-6,3-6 |
| UTR Pro Tennis Series Sydney | 2020/08/19 23:30 | Cameron Edward Smith v David Barclay | 6-3,4-6,1-0 |
| ITF M15 Caloundra | 2022/07/23 01:30 | Sam Ryan Ziegann v Colin Sinclair | 5-7,1-6 |
| ITF M15 Caloundra | 2022/07/18 02:00 | Thomas Braithwaite v Sam Ryan Ziegann | 5-7,4-6 |
| ITF M15 Caloundra | 2022/07/17 23:00 | Thomas Nicholas Gadecki v Sam Ryan Ziegann | 3-6,2-6 |
| ITF M15 Caloundra | 2022/07/17 02:30 | Edward Vo v Sam Ryan Ziegann | 4-6,2-6 |
| ITF M15 Tay Ninh | 2022/06/12 06:00 | Kenny Bun v Sam Ryan Ziegann | 6-4,4-6,10-8 |
| ITF M15 Tay Ninh | 2022/06/06 02:00 | Joao M Nusdeo v Sam Ryan Ziegann | 6-4,6-4 |
| ITF M15 Tay Ninh | 2022/06/05 02:00 | Anurag Agarwal v Sam Ryan Ziegann | 2-6,0-6 |
| ITF M15 Tay Ninh | 2022/05/30 02:00 | Sam Ryan Ziegann v Jeamoon Lee | 2-6,1-6 |