01.10.21 | 1/2 | Alexander Erler/Lucas Miedler | Ruben Gonzales/Hunter Johnson | 6-3, 7-5 | | match details | Sibiu Challenger | Clay |
30.09.21 | 1/4 | Ruben Gonzales/Hunter Johnson | Radu Albot/Marius Copil | 6-4, 6-2 | | match details |
30.09.21 | 1st round | Ruben Gonzales/Hunter Johnson | Mircea-Alexandru Jecan/Filip Cristian Jianu | 7-5, 6-2 | | match details |
25.09.21 | fin | Ruben Gonzales/Hunter Johnson | Maximilian Marterer/Lukas Rosol | 1-6, 6-2, 10-3 | | match details | Bucharest Challenger | Clay |
24.09.21 | 1/2 | Ruben Gonzales/Hunter Johnson | Mircea-Alexandru Jecan/Dan Alexandru Tomescu | 6-4, 7-64 | | match details |
23.09.21 | 1/4 | Ruben Gonzales/Hunter Johnson | Radu Albot/Alexander Cozbinov | 6-3, 6-72, 10-6 | | match details |
22.09.21 | 1st round | Ruben Gonzales/Hunter Johnson | Nicholas David Ionel/Filip Cristian Jianu | 6-1, 7-5 | | match details |
10.09.21 | 1/2 | Orlando Luz/Aleksandr Nedovyesov | Ruben Gonzales/Hunter Johnson | 6-4, 6-4 | | match details | Kyiv Challenger | Clay |
09.09.21 | 1/4 | Ruben Gonzales/Hunter Johnson | Ivan Gakhov/Alex Rybakov | 6-2, 7-64 | | match details |
08.09.21 | 1st round | Ruben Gonzales/Hunter Johnson | Jay Clarke/Ergi Kirkin | 7-64, 6-4 | | match details |
12.08.21 | 1/4 | Dustin Brown/Robin Haase | Ruben Gonzales/Hunter Johnson | 6-0, 6-4 | | match details | Meerbusch Challenger | Clay |
10.08.21 | 1st round | Ruben Gonzales/Hunter Johnson | Constantin Schmitz/Petros Tsitsipas | 7-62, 6-1 | | match details |
05.08.21 | 1/4 | Roman Jebavy/Igor Zelenay | Ruben Gonzales/Hunter Johnson | 4-6, 6-4, 10-3 | | match details | Liberec Challenger | Clay |
04.08.21 | 1st round | Ruben Gonzales/Hunter Johnson | Jiri Lehecka/Tomas Machac | Jiri Lehecka/Tomas Machac - walk over | | match details |
30.07.21 | 1/2 | Karol Drzewiecki/Aleksandar Vukic | Ruben Gonzales/Hunter Johnson | 6-4, 6-4 | | match details | Poznan Challenger | Clay |
29.07.21 | 1/4 | Ruben Gonzales/Hunter Johnson | Szymon Walkow/Jan Zielinski | 2-6, 7-66, 13-11 | | match details |
28.07.21 | 1st round | Ruben Gonzales/Hunter Johnson | Maks Kasnikowski/Daniel Michalski | 6-3, 6-4 | | match details |
23.07.21 | 1/2 | Orlando Luz/Felipe Meligeni Alves | Ruben Gonzales/Hunter Johnson | 3-6, 6-1, 10-8 | | match details | Tampere Challenger | Clay |
22.07.21 | 1/4 | Ruben Gonzales/Hunter Johnson | Joao Domingues/Dmitry Popko | Joao Domingues/Dmitry Popko - walk over | | match details |
21.07.21 | 1st round | Ruben Gonzales/Hunter Johnson | Leo Borg/Otto Virtanen | 2-6, 7-5, 10-4 | | match details |
13.07.21 | 1st round | Kevin Krawietz/Horia Tecau | Ruben Gonzales/Hunter Johnson | 6-0, 6-1 | | match details | Hamburg | Clay |
07.07.21 | 1st round | Lorenzo Claverie/Giorgio Ricca | Ruben Gonzales/Hunter Johnson | 6-3, 6-2 | | match details | Perugia Challenger | Clay |