Stadium: Court 5 Round: 44 Ground: Hardcourt outdoor
| Challenger Maia | 2019/11/20 10:00 | Pedja Krstin v Filippo Baldi | 6-2,4-6,0-6 |
| Challenger Maia | 2019/11/19 11:45 | Pedja Krstin v Denis Yevseyev | 6-4,7-5 |
| Challenger Houston | 2019/11/15 21:20 | Pedja Krstin v Mitchell Krueger | 6-7,4-6 |
| Challenger Houston | 2019/11/13 16:00 | Pedja Krstin v Nick Chappell | 6-1,1-6,6-1 |
| Challenger Montevideo | 2019/11/06 21:20 | Federico Delbonis v Pedja Krstin | 6-4,6-4 |
| Challenger Montevideo | 2019/11/04 22:05 | Franco Roncadelli v Pedja Krstin | 3-6,0-6 |
| Challenger Guayaquil | 2019/10/30 21:00 | Hugo Dellien v Pedja Krstin | 6-3,6-2 |
| Challenger Guayaquil | 2019/10/29 16:00 | Pedja Krstin v Rafael Matos | 6-7,6-3,6-1 |
| Challenger Noumea | 2020/01/10 00:50 | Yuichi Sugita v Martin Klizan | 6-1,6-2 |
| Challenger Noumea | 2020/01/09 06:45 | Martin Klizan v Christopher O'Connell | 7-6,6-2 |
| Challenger Noumea | 2020/01/08 07:40 | Martin Klizan v Thai-Son Kwiatkowski | 7-6,4-6,6-4 |
| Czechia Extraliga | 2019/12/16 12:00 | Martin Klizan v Niels Desein | 5-7,6-4,6-2 |
| Czechia Extraliga | 2019/12/14 12:30 | Martin Klizan v Borna Coric | 7-6,2-6,3-6 |
| ATP St Petersburg | 2019/09/17 12:15 | Roberto Carballes Baena v Martin Klizan | 6-2,7-5 |
| Davis Cup | 2019/09/13 15:00 | Martin Klizan v Sandro Ehrat | 2-6,6-7 |
| US Open | 2019/08/27 16:25 | Martin Klizan v Marin Cilic | 3-6,2-6,6-7 |