Stadium: N1 Round: 26 Ground: Hardcourt outdoor
| ITF M25 Champaign | 2019/07/24 19:35 | Trey Hilderbrand v Geller, Axel | 3-6,7-5,3-6 |
| Iowa City, Singles Qualifying M-ITF-USA-22A | 2019/07/20 17:40 | Mcnally, John v Geller, Axel | 6-2,6-7,6-2 |
| 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 16:40 | Geller, Axel v Mark Whitehouse | 6-3,7-5 |
| Iowa City, Singles Qualifying M-ITF-USA-22A | 2019/07/16 19:10 | Geller, Axel v Juan Carlos Aguilar | 3-6,6-3,7-6 |
| ITF M15 Cancun | 2019/07/03 13:30 | Major, Kevin v Geller, Axel | 4-6,3-6 |
| ITF M15 Cancun | 2019/06/30 19:00 | Nick Chappell v Geller, Axel | 3-6,6-7 |
| ITF M15 Cancun | 2019/06/29 14:00 | Geller, Axel v Lopez Villasenor, Gerardo | 7-5,6-1 |
| ITF M25 Champaign | 2019/07/23 21:25 | Montsi, Siphosothando v Dougaz, Aziz | 6-4,6-3 |
| ITF M15 Champaign | 2019/06/05 18:15 | Gomes, Gui v Montsi, Siphosothando | 3-6,6-2,7-6 |
| ITF M25 Tucson | 2019/01/09 21:15 | Montsi, Siphosothando v Glasspool, Lloyd | 4-6,6-3,3-6 |
| ITF M25 Tucson | 2019/01/08 19:05 | Hovhannisyan, Mousheg v Montsi, Siphosothando | 4-6,1-6 |
| ITF M25 Tucson | 2019/01/07 18:30 | Tagashira, Kento v Montsi, Siphosothando | 4-6,1-6 |
| Zimbabwe F3, Singles Qualifying | 2018/06/11 07:00 | Niki Kaliyanda Poonacha v Montsi, Siphosothando | 5-7,6-1,6-2 |
| ITF Zimbabwe F2 | 2018/06/05 07:00 | Matias Franco Descotte v Montsi, Siphosothando | 6-3,6-3 |
| ITF Zimbabwe F1 | 2018/05/28 08:00 | Jacobs, Tuki v Montsi, Siphosothando | 7-5,7-5 |