| Challenger - Tallahassee | 04/24 18:30 | 25 | [238] Harrison, Christian v Jay Clarke [227] | 3-6,6-3,2-6 | |
| Challenger - Sarasota | 04/17 16:40 | 25 | [235] Harrison, Christian v Londero, Juan Ignacio [218] | 4-6,1-6 | |
| Challenger Le Gosier | 03/29 19:00 | 26 | [217] Harrison, Christian v Klahn, Bradley [163] | 6-3,6-7,4-6 | |
| Challenger Le Gosier | 03/28 23:50 | 25 | [217] Harrison, Christian v Mina, Gianni [483] | 6-4,6-2 | |
| Drummondville, Canada | 03/15 15:45 | 26 | Schnur, Brayden v Harrison, Christian | 6-4,6-3 | |
| Drummondville, Canada | 03/13 16:05 | 25 | Harrison, Christian v Smith, John-Patrick | 6-0,6-7,7-6 | |
| Indian Wells, USA, Qualifying | 03/07 01:30 | 44 | Cameron Norrie v Harrison, Christian | 6-2,6-3 | |
| Challenger - Indian Wells | 03/02 19:30 | 27 | Harrison, Christian v Vasek Pospisil | 6-7,1-6 | |
| Challenger - Indian Wells | 03/01 20:35 | 26 | Harrison, Christian v Novikov, Dennis | 6-3,7-6 | |
| Challenger - Indian Wells | 02/27 21:00 | 25 | Yannick Hanfmann v Harrison, Christian | 6-3,3-6,3-6 | |
| Challenger - Indian Wells - Qualif. | 02/25 18:00 | 46 | Harrison, Christian v Matosevic, Marinko | 6-4,6-4 | |
| Challenger Launceston | 02/05 02:20 | 25 | Sarkissian, Alexander v Harrison, Christian | 6-3,6-3 | |
| Challenger - Burnie | 01/30 23:00 | 26 | Daniel Altmaier v Harrison, Christian | 6-0,6-4 | |
| Challenger - Burnie | 01/28 23:30 | 25 | Mousley, Bradley v Harrison, Christian | 1-6,5-7 | |
| Australian Open Qual | 01/12 00:30 | 45 | Harrison, Christian v Polansky, Peter | 2-6,5-7 | |
| Australian Open Qual | 01/10 04:30 | 44 | Harrison, Christian v Opelka, Reilly | 7-6,7-6 | |
| Challenger Noumea | 01/02 06:05 | 25 | Robert, Stephane v Harrison, Christian | 6-2,6-7,6-1 | |
| ITF USA F38 | 11/22 15:00 | 26 | Harrison, Christian v Schorsch, Jeffrey | 5-7,6-3,6-7 | |
| ITF USA F38 | 11/20 18:00 | 25 | Harrison, Christian v Mendez, Matthew | 6-0,6-2 | |
| Challenger Champaign | 11/15 17:30 | 26 | [85] Tennys Sandgren v Harrison, Christian [242] | Walkover | |
| Challenger Champaign | 11/14 00:05 | 25 | [358] Corrie, Edward v Harrison, Christian [242] | 6-3,4-6,4-6 | |
| Challenger Knoxville | 11/08 17:30 | 25 | King, Kevin v Harrison, Christian | Cancelled | |
| Challenger Charlottesville | 10/31 15:20 | 25 | Christopher Eubanks v Harrison, Christian | Cancelled | |
| Challenger Stockton | 10/05 19:00 | 26 | [205] Smyczek, Tim v Harrison, Christian [251] | 2-6,6-3,6-4 | |
| Challenger Stockton | 10/03 17:00 | 25 | [251] Harrison, Christian v Ramkumar Ramanathan [149] | 6-1,6-2 | |
| Challenger Tiburon | 09/29 23:55 | 27 | [266] Harrison, Christian v Tennys Sandgren [104] | 1-6,2-6 | |
| Challenger Tiburon | 09/28 18:00 | 26 | [325] Jan Choinski v Harrison, Christian [266] | 4-6,6-7 | |
| Challenger Tiburon | 09/26 17:00 | 25 | [266] Harrison, Christian v Kaichi Uchida [385] | 6-2,6-4 | |
| Challenger Cary | 09/14 17:40 | 26 | [201] Mackenzie McDonald v Harrison, Christian [274] | 6-3,7-5 | |
| Challenger Cary | 09/13 18:50 | 25 | Harrison, Christian v Aleksandar Vukic | 6-3,7-5 |
Wikipedia - Christian Harrison
Christian Harrison, né le à Shreveport, est un joueur de tennis américain, professionnel depuis 2011.
Il est le frère cadet du joueur de tennis Ryan Harrison.