| Challenger Heilbronn | 06/02 14:45 | 14 |
Christian Harrison v
Nikoloz Basilashvili
|
3-6,7-5,4-6 | |
| Challenger Champaign | 11/12 23:10 | 14 | Christian Harrison v Oliver Okonkwo | 4-6,6-3,6-7 | |
| Challenger Knoxville | 11/08 02:35 | 25 | Christian Harrison v Murphy Cassone | 1-6,4-6 | |
| Challenger Knoxville | 11/06 15:00 | 19 |
[355] Thai-Son Kwiatkowski
v
Christian Harrison [150] |
6-1,6-3 | |
| Challenger Knoxville | 11/05 16:45 | 14 | Keegan Smith v Christian Harrison | 6-2,2-6,5-7 | |
| Challenger Charlottesville | 10/30 17:30 | 19 |
[376] Aidan Mayo
v
Christian Harrison [152] |
2-6,7-5,6-2 | |
| Challenger Charlottesville | 10/29 23:40 | 14 | Alexander Kiefer v Christian Harrison | Walkover | |
| Challenger Fairfield | 10/13 20:05 | 27 | [227] Steve Johnson v Christian Harrison [153] | 6-1,6-2 | |
| Challenger Fairfield | 10/12 18:45 | 26 | [153] Christian Harrison v Tennys Sandgren [204] | 5-7,6-0,6-3 | |
| Challenger Fairfield | 10/10 20:50 | 25 |
[153] Christian Harrison v
August Holmgren
[433]
|
6-4,6-4 | |
| Challenger Tiburon | 10/02 23:30 | 25 |
[160] Christian Harrison v
Zachary Svajda
[167]
|
6-7,5-7 | |
| Challenger Charleston | 09/28 16:00 | 26 |
[197] Ryan Peniston
v
Christian Harrison [160] |
6-2,6-3 |
Christian Harrison (born May 29, 1994) is an American professional tennis player who specializes in doubles. He has a career-high ATP doubles ranking of world No. 15 achieved on 3 November 2025 and a singles ranking of No. 198 achieved on 2 July 2018. His best achievements are reaching the semifinals of the 2025 French Open with Evan King, and the mixed doubles semifinals of the 2018 US Open, partnering Christina McHale. He has won three ATP Tour doubles titles with King.