25.11.21 | Četvrtfinale | Gijs Brouwer/Reese Stalder | Christian Harrison/Dennis Novikov | 6-3, 6-4 | | detalj meča | Puerto Vallarta | tvrda |
23.11.21 | 1. kolo | Christian Harrison/Dennis Novikov | Pedro Vives Marcos/Tung-Lin Wu | 7-64, 6-4 | | detalj meča |
22.09.21 | 1. kolo | Yunseong Chung/Seong Chan Hong | Christian Harrison/Dennis Novikov | 5-7, 7-5, 15-13 | | detalj meča | Columbus Challenger | dvorana |
17.09.21 | Polufinale | William Blumberg/Max Jacob Schnur | Christian Harrison/Dennis Novikov | 3-6, 6-1, 10-5 | | detalj meča | Cary 2 | tvrda |
16.09.21 | Četvrtfinale | Christian Harrison/Dennis Novikov | Strong Kirchheimer/Shintaro Mochizuki | 4-6, 6-3, 10-4 | | detalj meča |
14.09.21 | 1. kolo | Christian Harrison/Dennis Novikov | Robin Catry/Damien Salvestre | 6-3, 6-4 | | detalj meča |
30.07.21 | Polufinale | Alex Rybakov/Reese Stalder | Christian Harrison/Dennis Novikov | 7-64, 7-63 | | detalj meča | Lexington Challenger | tvrda |
29.07.21 | Četvrtfinale | Christian Harrison/Dennis Novikov | Roberto Cid Subervi/Tung-Lin Wu | 7-5, 6-3 | | detalj meča |
28.07.21 | 1. kolo | Christian Harrison/Dennis Novikov | N. Vijay Sundar Prashanth/Ramkumar Ramanathan | 4-6, 6-3, 10-5 | | detalj meča |
24.07.21 | Finale | Christian Harrison/Dennis Novikov | Petros Chrysochos/Michail Pervolarakis | 6-3, 6-3 | | detalj meča | Cary Challenger | tvrda |
23.07.21 | Polufinale | Christian Harrison/Dennis Novikov | Lukas Lacko/Ramkumar Ramanathan | 7-5, 6-3 | | detalj meča |
22.07.21 | Četvrtfinale | Christian Harrison/Dennis Novikov | Ulises Blanch/Sam Riffice | 6-3, 7-5 | | detalj meča |
17.04.21 | Finale | Mitchell Krueger/Jack Sock | Christian Harrison/Dennis Novikov | 4-6, 7-5, 13-11 | | detalj meča | Orlando Challenger | tvrda |
16.04.21 | Polufinale | Christian Harrison/Dennis Novikov | JC Aragone/Luis David Martinez | 6-2, 6-3 | | detalj meča |
15.04.21 | Četvrtfinale | Christian Harrison/Dennis Novikov | Yuki Bhambri/Matthew Ebden | Yuki Bhambri/Matthew Ebden - nije odigrao(la/li/le) | | detalj meča |
14.04.21 | 1. kolo | Christian Harrison/Dennis Novikov | Miguel-Angel Reyes-Varela/Fernando Romboli | 6-2, 5-7, 10-6 | | detalj meča |