Stadium: Court 12 Round: 44 Ground: Hardcourt outdoor
| 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 M25 Geelong | 2020/03/08 01:30 | Tomislav E Papac v David Barclay | 7-5,6-2 |
| 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 |
| ITF M25 Canberra | 2022/03/29 23:00 | Sam Ryan Ziegann v Philip Sekulic | 4-6,2-6 |
| ITF M25 Canberra | 2022/03/28 23:00 | Luke Sorensen v Sam Ryan Ziegann | 6-2,6-7,10-3 |
| ITF M25 Canberra | 2022/03/27 23:00 | Greg Polmans v Sam Ryan Ziegann | 1-6,2-6 |
| ITF M25 Canberra | 2022/03/26 22:00 | Matthew Scheers v Sam Ryan Ziegann | 0-6,0-6 |