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Rudy Quan vs. Alexander Kotzen - head to head matches
| 05.07.23 | 1st round | Alexander Kotzen | Rudy Quan | 6-4, 4-6, 6-2 | match details |  M15 Lakewood | Hard |
Rudy Quan form & Alexander Kotzen form
Rudy Quan - last matches
| Indian Wells - Hard | ||||
| 04.03.25 qual. | vs. Yosuke Watanuki | 3-6, 2-6 |  | match details |
| 03.03.25 q 1 | vs. Federico Agustin Gomez | 6-4, 7-5 |  | match details |
| San Diego - Hard | ||||
| 23.02.25 q 1 | vs. Stefan Dostanic | 2-6, 4-6 | | match details |
| Sioux Falls - I. hard | ||||
| 20.10.24 q 1 | vs. Borna Gojo | 6-4, 1-6, 1-6 | | match details |
| Fairfield Challenger - Hard | ||||
| 10.10.24 2nd round | vs. Ethan Quinn | 3-6, 6-2, 2-6 | | match details |
| 08.10.24 1st round | vs. Guy Den Ouden | 3-6, 6-3, 6-4 | | match details |
| 07.10.24 qual. | vs. Keegan Smith | 6-3, 6-0 | | match details |
| 06.10.24 q 1 | vs. Patrick Zahraj | 7-5, 6-1 | | match details |
| U.S. Open - Hard | ||||
| 02.09.24 2nd round | vs. Rafael Jodar | 6-3, 4-6, 3-6 | | match details |
| 01.09.24 1st round | vs. Viktor Frydrych | 7-5, 6-1 | | match details |
| M15 Lakewood - Hard | ||||
| 12.07.24 1/4 | vs. Learner Tien | 4-6, 6-74 | | match details |
| 11.07.24 2nd round | vs. Preston Stearns | 7-5, 4-6, 6-2 | | match details |
| 10.07.24 1st round | vs. Ryan Dickerson | 4-6, 6-4, 6-0 | | match details |
| Tyler Challenger - Hard | ||||
| 04.06.24 1st round | vs. Alexis Galarneau | 2-6, 5-7 | | match details |
| Little Rock - Hard | ||||
| 31.05.24 1/4 | vs. Yuta Shimizu | 4-6, 3-6 | | match details |
| 30.05.24 2nd round | vs. Andres Andrade | 6-3, 3-6, 6-3 | | match details |
| 28.05.24 1st round | vs. Stefan Kozlov | 6-1, 7-5 | | match details |
| 27.05.24 qual. | vs. Filip Peliwo | 6-4, 6-2 | | match details |
| 26.05.24 q 1 | vs. Shintaro Imai | 4-6, 6-4, 6-2 | | match details |
| M15 Orange - Clay | ||||
| 04.05.24 1/2 | vs. Duarte Vale | 4-6, 6-4, 2-6 | | match details |
| 03.05.24 1/4 | vs. Andres Andrade | 7-64, 7-5 | | match details |
| 02.05.24 2nd round | vs. Jonas Pelle Hartenstein | Jonas Pelle Hartenstein - walk over | | match details |
| 01.05.24 1st round | vs. Victor Lilov | 6-4, 6-4 | | match details |
| M15 Vero - Clay | ||||
| 26.04.24 1/4 | vs. Garrett Johns | 4-6, 4-6 | | match details |
| 25.04.24 2nd round | vs. Cooper Woestendick | 6-3, 6-2 | | match details |
| 24.04.24 1st round | vs. Nathan Ponwith | 6-0, 7-65 | | match details |
| M15 Palm - Clay | ||||
| 12.02.24 q 1 | vs. Arthur Bonnaud | 7-64, 4-6, 5-10 | | match details |
| M25 Wesley - Hard | ||||
| 25.01.24 2nd round | vs. Gilles Arnaud Bailly | 4-6, 1-6 | | match details |
| 24.01.24 1st round | vs. Karue Sell | 6-4, 6-3 | | match details |
| 23.01.24 qual. | vs. Pranav Kumar | 6-3, 6-3 | | match details |
Alexander Kotzen - last matches
| Knoxville Challenger - I. hard | ||||
| 05.11.24 1st round | vs. Patrick Kypson | 6-3, 3-6, 6-77 | | match details |
| 04.11.24 qual. | vs. Naoki Nakagawa | 6-3, 7-63 | | match details |
| 03.11.24 q 1 | vs. Aidan Mchugh | 7-65, 7-65 | | match details |
| M15 Ann - Hard | ||||
| 02.10.24 1st round | vs. Felix Corwin | 5-7, 6-0, 1-6 | | match details |
| M25 Southaven - Hard | ||||
| 09.08.24 1/4 | vs. Kyle Kang | 6-3, 0-6, 0-4, - Alexander Kotzen - retired | | match details |
| 08.08.24 2nd round | vs. Adit Sinha | 6-3, 6-4 | | match details |
| 07.08.24 1st round | vs. Keshav Chopra | 7-5, 6-3 | | match details |
| M25 Champaign - Hard | ||||
| 23.07.24 qual. | vs. Cleeve Harper | 0-6, 6-74 | | match details |
| 22.07.24 q 1 | vs. Eric Perkowski | 6-1, 6-2 | | match details |
| M25 East - Hard | ||||
| 19.07.24 1/4 | vs. Aidan Kim | 4-6, 7-5, 2-6 | | match details |
| 18.07.24 2nd round | vs. Gavin Young | 3-6, 7-5, 6-0 | | match details |
| 17.07.24 1st round | vs. Enzo Wallart | 6-2, 6-2 | | match details |
| M25 Dallas - I. hard | ||||
| 09.07.24 qual. | vs. Tyler Zink | 3-6, 5-7 | | match details |
| 08.07.24 q 1 | vs. Lucas Brown | 6-3, 6-4 | | match details |
 M25 Laval - Hard | ||||
| 02.07.24 1st round | vs. Karl Poling | 2-6, 6-3, 3-6 | | match details |
| M25 Tulsa - Hard | ||||
| 22.06.24 1/2 | vs. Bernard Tomic | 4-6, 2-6 | | match details |
| 21.06.24 1/4 | vs. Andre Ilagan | 6-1, 6-3 | | match details |
| 20.06.24 2nd round | vs. Oliver Okonkwo | 6-1, 6-2 | | match details |
| 19.06.24 1st round | vs. Andres Andrade | 5-3, Andres Andrade - retired | | match details |
| M25 Wichita - Hard | ||||
| 14.06.24 1/4 | vs. Ethan Quinn | 6-3, 1-6, 2-6 | | match details |
| 13.06.24 2nd round | vs. Kody Pearson | 6-3, 6-2 | | match details |
| 12.06.24 1st round | vs. Nicolas Ian Kotzen | 6-2, 6-1 | | match details |
| 11.06.24 qual. | vs. Gabrielius Guzauskas | 6-4, 6-0 | | match details |
| 10.06.24 q 2 | vs. Henry Ren | 7-62, 6-2 | | match details |
| Drummondville Challenger - I. hard | ||||
| 14.11.23 1st round | vs. Dan Martin | 1-2, - Alexander Kotzen - retired | | match details |
| 13.11.23 qual. | vs. Olaf Pieczkowski | 6-1, 6-4 | | match details |
| 12.11.23 q 1 | vs. Roko Horvat | 6-3, 6-1 | | match details |
| Knoxville Challenger - I. hard | ||||
| 05.11.23 q 1 | vs. Gabi Adrian Boitan | 7-65, 4-6, 3-6 | | match details |
| M25 Edmonton - I. hard | ||||
| 01.11.23 1st round | vs. Andres Martin | 0-6, 3-6 | | match details |
| M25 Saint - I. hard | ||||
| 26.10.23 2nd round | vs. Aziz Dougaz | 3-6, 6-72 | | match details |