| ATP Indian Wells | 03/08 02:00 | 23 | [90] Bradley Klahn v Malek Jaziri [60] | 4-6,2-6 | |
| ATP New York | 02/12 17:20 | - | Guillermo Garcia-Lopez v Bradley Klahn | Cancelled | |
| Challenger Newport Beach | 01/23 20:50 | 25 | Dustin Brown v Bradley Klahn | Cancelled | |
| Australian Open | 01/15 01:40 | 23 | [25] Hyeon Chung v Bradley Klahn [78] | 6-7,6-7,6-3,6-2,6-4 | |
| ATP Auckland | 01/07 00:15 | 25 | [34] Philipp Kohlschreiber v Bradley Klahn [76] | 6-4,7-6 | |
| ATP Auckland | 01/05 22:00 | 164 | [76] Bradley Klahn v Pablo Cuevas [88] | 6-7,7-6,7-6 | |
| ATP Auckland | 01/04 22:00 | 64 | [76] Bradley Klahn v Philipp Oswald [52] | 7-6,6-4 | |
| ATP Auckland | 01/04 22:00 | 64 | Bradley Klahn v Michael Mmoh | Cancelled | |
| ATP Brisbane | 12/29 02:40 | 64 | [76] Bradley Klahn v Christopher Eubanks [166] | 6-3,4-6,6-7 | |
| Challenger Houston | 11/19 01:00 | 29 | Roy Smith v Bradley Klahn | 6-7,6-7 | |
| Challenger Houston | 11/17 17:45 | 28 | [171] Dominik Koepfer v Bradley Klahn [97] | 3-6,4-6 | |
| Challenger Houston | 11/16 20:45 | 27 | [400] Evan Song v Bradley Klahn [97] | 3-6,6-4,1-6 | |
| Challenger Houston | 11/15 22:10 | 26 | [480] Michael Redlicki v Bradley Klahn [97] | 4-6,4-6 | |
| Challenger Houston | 11/13 18:10 | 25 | [350] Alexander Sarkissian v Bradley Klahn [97] | 1-6,2-6 | |
| Challenger Knoxville | 11/08 16:55 | 26 | [229] Evgeny Karlovskiy v Bradley Klahn [95] | 5-7,6-4,6-4 | |
| Challenger Knoxville | 11/06 20:50 | 25 | [237] JC Aragone v Bradley Klahn [95] | 2-6,6-7 | |
| Challenger Charlottesville | 11/03 18:40 | 28 | [101] Bradley Klahn v Tommy Paul [277] | 3-6,3-6 | |
| Challenger Charlottesville | 11/02 20:50 | 27 | [101] Bradley Klahn v Bjorn Fratangelo [135] | 6-3,6-3 | |
| Challenger Charlottesville | 10/31 23:35 | 26 | [101] Bradley Klahn v James Ward [213] | 6-1,6-2 | |
| Challenger Charlottesville | 10/30 16:40 | 25 | [101] Bradley Klahn v Denis Yevseyev [297] | 6-3,2-6,6-3 | |
| ATP Vienna | 10/20 09:00 | 64 | [150] Sergiy Stakhovsky v Bradley Klahn [102] | 6-7,6-4,6-4 | |
| ATP Stockholm | 10/18 17:30 | 26 | [10] John Isner v Bradley Klahn [102] | 7-6,6-7,7-6 | |
| ATP Stockholm | 10/16 17:35 | 25 | [102] Bradley Klahn v Marius Copil [90] | 6-2,3-6,6-4 | |
| ATP Shanghai | 10/09 12:20 | 25 | [104] Bradley Klahn v Borna Coric [19] | 4-6,2-6 | |
| ATP Shanghai | 10/08 10:35 | 24 | [104] Bradley Klahn v Nick Kyrgios [38] | 4-6,6-4,6-3 | |
| ATP Shanghai | 10/07 04:00 | 46 | [93] Bradley Klahn v Taro Daniel [72] | 7-6,7-6 | |
| ATP Shanghai | 10/06 04:00 | 45 | [59] Tennys Sandgren v Bradley Klahn [93] | 6-4,3-6,4-6 | |
| ATP Tokyo | 09/30 03:00 | 164 | [49] Martin Klizan v Bradley Klahn [95] | 6-3,6-4 | |
| ATP Tokyo | 09/29 04:00 | 64 | [114] Ruben Bemelmans v Bradley Klahn [95] | 6-2,3-6,6-7 | |
| ATP Chengdu | 09/24 09:50 | 25 | [95] Bradley Klahn v Bernard Tomic [123] | 7-6,6-7,2-6 |