Stadium: Court 17 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Edwardsville | 2019/08/07 17:25 | Ezekiel Clark v Smith, Errol | 6-4,7-6 |
| ITF M25 Edwardsville | 2019/08/06 15:45 | Smith, Errol v Pickens, A.trice | 6-4,4-6,10-8 |
| ITF M25 Decatur | 2019/07/31 22:00 | Brooksby, Jenson v Smith, Errol | 6-3,6-2 |
| ITF M25 Champaign | 2019/07/25 19:45 | Oliver Crawford v Smith, Errol | 4-6,6-1,6-1 |
| ITF M25 Champaign | 2019/07/24 17:00 | Smith, Errol v Seelig, Kyle | 7-6,6-4 |
| Iowa City, Singles Qualifying M-ITF-USA-22A | 2019/07/19 16:15 | Geller, Axel v Smith, Errol | 2-6,6-3,6-0 |
| Iowa City, Singles Qualifying M-ITF-USA-22A | 2019/07/18 14:00 | Smith, Errol v Gonzalez, Alejandro | 7-6,6-4 |
| Iowa City, Singles Qualifying M-ITF-USA-22A | 2019/07/17 16:30 | Perez, Alfredo v Smith, Errol | 5-7,7-6,6-7 |
| ITF M25 Norman | 2019/10/02 15:00 | Khan, Zane v Nick Chappell | 6-7,7-6,2-6 |
| ITF M25 Harlingen | 2019/09/26 02:55 | Khan, Zane v Watson, Andrew | 4-6,1-6 |
| ITF M25 Harlingen | 2019/09/25 18:30 | Khan, Zane v Watson, Andrew | 4-6,1-5 |
| ITF M25 Harlingen | 2019/09/24 14:00 | Ignat, Dragos Constantin v Khan, Zane | 4-6,5-7 |
| Challenger - Sarasota | 2019/04/16 17:55 | Daniel Elahi Galan v Khan, Zane | 7-5,6-2 |
| Challenger - Sarasota | 2019/04/15 14:00 | Benjamin Hassan v Khan, Zane | 3-6,2-6 |
| ATP - Miami | 2019/03/18 14:00 | Khan, Zane v Granollers, Marcel | 2-6,3-6 |
| Challenger - Indian Wells | 2019/02/25 18:00 | Khan, Zane v Yosuke Watanuki | 6-3,2-6,2-6 |