| ITF - Redding W25 | 10/10 20:00 | 29 | [339] Catherine Harrison v Dalila Jakupovic [286] | 6-1,6-1 | |
| ITF - Redding W25 | 10/09 20:00 | 28 | [339] Catherine Harrison v Katie Swan [267] | 3-6,6-4,7-5 | |
| ITF - Redding W25 | 10/08 21:30 | 27 | [400] Victoria Duval v Catherine Harrison [339] | 1-6,3-6 | |
| ITF - Redding W25 | 10/07 18:25 | 26 | Connie Ma v Catherine Harrison | 3-6,6-2,2-6 | |
| ITF - Redding W25 | 10/06 19:55 | 25 | [339] Catherine Harrison v Kyoka Okamura [298] | 6-2,6-1 | |
| WTA Chicago | 09/25 19:35 | 25 | [336] Catherine Harrison v Rebecca Marino [158] | 6-3,3-6,2-6 | |
| ITF - Fort Worth W25 | 09/23 17:15 | 26 | [444] Alexandra Bozovic v Catherine Harrison [336] | 7-6,7-6 | |
| ITF - Fort Worth W25 | 09/21 17:20 | 25 | [466] Jessie Aney v Catherine Harrison [336] | 5-7,3-6 | |
| WTA Cleveland | 08/23 16:00 | 25 | [340] Catherine Harrison v Caroline Garcia [61] | 1-6,2-6 | |
| WTA Cleveland | 08/22 14:00 | 19 | [340] Catherine Harrison v Tara Moore [432] | 6-4,5-7,6-1 | |
| WTA Cleveland | 08/21 15:45 | 14 | Catherine Harrison v Tori Kinard | 6-3,7-5 | |
| WTA Concord | 08/01 14:00 | 14 | [209] Robin Anderson v Catherine Harrison [310] | 7-5,6-1 | |
| WTA Charleston | 07/26 19:30 | 25 | [225] Rebecca Marino v Catherine Harrison [310] | 6-4,6-4 | |
| ITF - Evansville W25 | 07/16 17:05 | 27 | [177] Mayo Hibi v Catherine Harrison [315] | 6-1,6-1 | |
| ITF - Evansville W25 | 07/15 14:00 | 26 | [368] Robin Montgomery v Catherine Harrison [315] | 3-6,6-7 | |
| ITF - Evansville W25 | 07/14 16:20 | 25 | Joelle Kissell v Catherine Harrison | 1-6,1-6 | |
| UTR Pro Tennis Series Dallas - Kobiety | 07/11 13:00 | - | [293] Marcela Zacarias v Catherine Harrison [311] | 7-6,5-1 | |
| UTR Pro Tennis Series Dallas - Kobiety | 07/10 16:00 | - | Emma Staker v Catherine Harrison | 2-6,5-6 | |
| UTR Pro Tennis Series Dallas - Kobiety | 07/09 17:30 | - | Catherine Harrison v Anna Riedmiller | 7-6,6-1 | |
| UTR Pro Tennis Series Dallas - Kobiety | 07/07 14:30 | - | Catherine Harrison v Sabina Machalova | 6-3,7-6 | |
| UTR Pro Tennis Series Dallas - Kobiety | 07/06 18:00 | - | Catherine Harrison v Sophie Abrams | 4-6,6-3,6-1 | |
| UTR Pro Tennis Series Dallas - Kobiety | 07/05 17:30 | - | Enya Ratkic v Catherine Harrison | 0-6,3-6 | |
| ITF - Sumter W25 | 06/16 15:30 | 25 | [313] Catherine Harrison v Paige Hourigan [434] | 5-7,0-6 | |
| ITF - Pelham W25 | 05/19 19:50 | 25 | [310] Catherine Harrison v Mirjam Bjorklund [331] | 2-6,3-6 | |
| ITF - Bonita Springs W100 | 05/12 13:50 | 25 | [299] Katie Volynets v Catherine Harrison [305] | 6-3,6-2 | |
| ITF - Bonita Springs W100 | 05/11 16:15 | 54 | [305] Catherine Harrison v Victoria Duval [439] | 1-6,4-6 | |
| ITF - Bonita Springs W100 | 05/10 23:50 | 54 | [209] Gabriela Talaba v Catherine Harrison [305] | 4-6,1-6 | |
| ITF - Naples W25 | 05/05 14:00 | 25 | [307] Irina Fetecau v Catherine Harrison [299] | 6-1,6-2 | |
| ITF - Charlottesville W60 | 04/27 15:50 | 54 | [267] Jamie Loeb v Catherine Harrison [299] | 6-4,6-2 | |
| ITF - Charlottesville W60 | 04/26 17:25 | 54 | Rosie Johanson v Catherine Harrison | 4-6,0-6 |