08.04.18 | q 1 | Federico Juan Aguilar | Drew Halbauer | 6-4, 6-0 |  | match details | Italy F7 | Clay |
31.07.17 | q 1 | James Allemby | Drew Halbauer | 7-63, 6-3 |  | match details | Morocco F3 | Clay |
24.07.17 | q 1 | Hamid Derbani | Drew Halbauer | 3-6, 4-2, Drew Halbauer - retired |  | match details | Morocco F2 | Clay |
17.07.17 | q 1 | Joan Carles Alcala Llinares | Drew Halbauer | 6-1, 2-0, Drew Halbauer - retired |  | match details | Morocco F1 | Clay |
13.02.17 | | Jake Van Emburgh | Drew Halbauer | 6-3, 6-2 |  | match details | USA F7 | Clay |
23.01.17 | | Jaume Pla Malfeito | Drew Halbauer | 6-1, 6-0 |  | match details | USA F5 | Clay |
09.01.17 | | Christopher Vrabel | Drew Halbauer | 6-0, 6-1 |  | match details | USA F3 | Clay |
05.12.16 | q 1 | Drew Halbauer | Miguel Aletxander Maria Almonte | Miguel Aletxander Maria Almonte - walk over |  | match details | Dominican Republic | Clay |
05.12.16 | qual. | Nebojsa Peric | Drew Halbauer | 6-4, 7-5 |  | match details |
05.12.16 | q 2 | Drew Halbauer | Julio Armando Fernandez Persia | 7-65, 7-66 |  | match details |
29.06.15 | q 1 | Forrest Edwards | Drew Halbauer | 6-2, 6-2 |  | match details | USA F20 | Clay |
11.05.15 | q 1 | Jake Devine | Drew Halbauer | 6-4, 6-2 |  | match details | USA F16 | Clay |
11.05.15 | | Drew Halbauer | Karlyn Small | 7-5, 6-4 |  | match details |
04.05.15 | | Drew Halbauer | Gustavo Denadae Biroche | 6-2, 6-1 |  | match details | USA F15 | Clay |
04.05.15 | q 1 | Drew Halbauer | Stephen Stege | 6-1, 7-62 |  | match details |
04.05.15 | qual. | Jack Baker | Drew Halbauer | 6-74, 6-3, 6-1 |  | match details |
04.05.15 | q 2 | Drew Halbauer | Victor Segantini Bertoldo | 7-610, 6-3 |  | match details |
27.04.15 | q 2 | Christopher Barrus | Drew Halbauer | 5-7, 7-5, 6-3 |  | match details | USA F14 | Clay |
27.04.15 | | Drew Halbauer | Elliot Carnello | 6-3, 2-6, 6-4 |  | match details |
27.04.15 | q 1 | Drew Halbauer | David Poole | 6-1, 6-4 |  | match details |
28.10.13 | q 1 | Drew Halbauer | Domenico Sano | 6-1, 7-5 |  | match details | USA F29 | Clay |
28.10.13 | | Drew Halbauer | Sam Sweeney | 6-1, 4-6, 6-3 |  | match details |
28.10.13 | q 2 | Sebastian Tabbia | Drew Halbauer | 3-6, 6-4, 7-65 |  | match details |