Stadium: Court 2 Round: 26 Ground: Clay
| ITF M25 Jablonec Nad Nisou | 2021/05/19 10:40 | Martin Krumich v Christian Lindell | 6-3,6-1 |
| ITF M15 Antalya | 2021/06/09 10:50 | Christian Lindell v Patrik Rikl | 6-3,6-4 |
| ITF M25 Most | 2021/05/26 09:50 | Andrew Paulson v Christian Lindell | 6-2,6-3 |
| ITF M25 Jablonec Nad Nisou | 2021/05/19 10:40 | Martin Krumich v Christian Lindell | 6-3,6-1 |
| Challenger Santiago | 2021/03/15 17:10 | Tomas Barrios Vera v Christian Lindell | 4-6,6-1,7-6 |
| ATP Santiago | 2021/03/06 13:00 | Juan Pablo Varillas v Christian Lindell | 4-6,7-5,7-6 |
| ATP Buenos Aires | 2021/02/27 15:30 | Thiago Seyboth Wild v Christian Lindell | 6-1,7-6 |
| ATP Cordoba | 2021/02/21 16:35 | Tomas Martin Etcheverry v Christian Lindell | 7-5,6-2 |
| Challenger Concepcion | 2021/02/16 19:15 | Hernan Casanova v Christian Lindell | 3-6,7-5,6-1 |
| ITF M15 Antalya | 2021/06/09 07:00 | Martin Krumich v Zakhar Trapeznikov | 6-1,6-3 |
| ITF M25 Most | 2021/05/25 09:35 | Gijs Brouwer v Martin Krumich | 6-3,5-7,6-4 |
| ITF M25 Jablonec Nad Nisou | 2021/05/20 09:45 | Jiri Lehecka v Martin Krumich | 6-2,6-3 |
| ITF M25 Jablonec Nad Nisou | 2021/05/19 10:40 | Martin Krumich v Christian Lindell | 6-3,6-1 |
| ITF M25 Jablonec Nad Nisou | 2021/05/18 11:00 | Lenny Hampel v Martin Krumich | 6-3,6-4 |
| ITF M25 Jablonec Nad Nisou | 2021/05/17 10:00 | Lucas Bouquet v Martin Krumich | 2-6,6-3,10-12 |
| ITF M25 Jablonec Nad Nisou | 2021/05/16 11:30 | Martin Benes v Martin Krumich | 4-6,0-6 |
| ITF M25 Prague | 2021/05/11 14:50 | Martin Krumich v Chun Hsin Tseng | 1-6,4-6 |