INFO: click on player name to show detailed player statistics
Steven Diez vs. Christian Harrison - H2H matches
| 15.01.23 | q 1 | Christian Harrison | Steven Diez | 6-4, 6-3 | match details |  Tenerife 1 | Hard |
| 26.08.16 | qual. | Christian Harrison | Steven Diez | 1-6, 6-4, 6-2 | match details |  New York | Hard |
Steven Diez form & Christian Harrison form
Steven Diez - last matches
| M25 Vic - Clay | ||||
| 16.05.25 1/4 | vs. Lorenzo Giustino | 1-6, 1-2, - Steven Diez - retired |  | match details |
| 15.05.25 2nd round | vs. Andres Santamarta Roig | 6-3, 7-5 |  | match details |
| 14.05.25 1st round | vs. Michiel De Krom | 6-1, Michiel De Krom - retired | | match details |
| M25 Sabadell - Clay | ||||
| 30.04.25 1st round | vs. Sekou Bangoura | 6-4, 6-74, 1-6 | | match details |
| Savannah Challenger - Clay | ||||
| 20.04.25 q 1 | vs. Ryan Seggerman | 3-6, 6-3, 3-6 | | match details |
| Tallahassee Challenger - Clay | ||||
| 13.04.25 q 1 | vs. Joao Lucas Reis Da Silva | 1-6, 6-3, 1-6 | | match details |
| M25 Reus - Clay | ||||
| 03.04.25 2nd round | vs. Clement Tabur | 7-5, 6-71, 1-6 | | match details |
| 02.04.25 1st round | vs. Sergi Fita Juan | 6-0, 6-1 | | match details |
| Girona Challenger - Clay | ||||
| 24.03.25 q 1 | vs. Filip Misolic | 3-6, 1-6 | | match details |
| M25 Badalona - Clay | ||||
| 21.03.25 2nd round | vs. Alex Marti Pujolras | 4-6, 3-6 | | match details |
| 20.03.25 1st round | vs. Jorge Plans | 7-5, 6-3 | | match details |
| M25 Les - Hard | ||||
| 15.03.25 2nd round | vs. Bernabe Zapata Miralles | 6-71, 6-3, 3-10 | | match details |
| 15.03.25 1st round | vs. Iker Urribarrens Ramirez | 6-3, 6-0 | | match details |
| M15 Torello - Hard | ||||
| 09.03.25 1/2 | vs. Fabrizio Andaloro | 1-6, 6-74 | | match details |
| 07.03.25 2nd round | vs. Toby Samuel | 5-7, 6-4, 2-1, Toby Samuel - retired | | match details |
| 07.03.25 1/4 | vs. William Grant | 6-1, 6-1 | | match details |
| 05.03.25 1st round | vs. Manel Lazaro Juncadella | 6-0, 6-3 | | match details |
| Tenerife 2 - Hard | ||||
| 13.02.25 2nd round | vs. Nicolas Alvarez Varona | 2-2, - Steven Diez - retired | | match details |
| 11.02.25 1st round | vs. Pablo Llamas Ruiz | 6-4, 6-3 | | match details |
| 10.02.25 qual. | vs. Mathys Erhard | 7-62, 3-6, 6-4 | | match details |
| 09.02.25 q 1 | vs. Adria Soriano Barrera | 7-65, 6-3 | | match details |
| M15 Ceuta - Hard | ||||
| 13.12.24 1/4 | vs. Robert Strombachs | 6-75, 2-6 | | match details |
| 12.12.24 2nd round | vs. Gabriele Vulpitta | 6-3, 6-3 | | match details |
| 11.12.24 1st round | vs. Jacopo Bilardo | 6-2, 6-1 | | match details |
 M25 Glasgow - I. hard | ||||
| 24.10.24 2nd round | vs. Romain Faucon | 6-72, 2-6 | | match details |
| 23.10.24 1st round | vs. Leonardo Rossi | 6-2, 6-2 | | match details |
 Olbia Challenger - Hard | ||||
| 15.10.24 1st round | vs. Laurent Lokoli | 6-4, 3-6, 0-6 | | match details |
| 14.10.24 qual. | vs. Vitaliy Sachko | 6-4, 6-2 | | match details |
| 13.10.24 q 1 | vs. David Pichler | 6-75, 6-2, 6-3 | | match details |
 Roanne Challenger - I. hard | ||||
| 06.10.24 q 1 | vs. Jiri Vesely | 6-4, 2-6, 3-6 | | match details |
Christian Harrison - last matches
 Heilbronn Challenger - Clay | ||||
| 02.06.24 q 1 | vs. Nikoloz Basilashvili | 3-6, 7-5, 4-6 | | match details |
| Champaign Challenger - I. hard | ||||
| 12.11.23 q 1 | vs. Oliver Okonkwo | 4-6, 6-3, 6-79 | | match details |
| Knoxville Challenger - I. hard | ||||
| 07.11.23 1st round | vs. Murphy Cassone | 1-6, 4-6 | | match details |
| 06.11.23 qual. | vs. Thai Kwiatkowski | 1-6, 3-6 | | match details |
| 05.11.23 q 1 | vs. Keegan Smith | 2-6, 6-2, 7-5 | | match details |
| Charlottesville Challenger - I. hard | ||||
| 30.10.23 qual. | vs. Aidan Mayo | 6-2, 5-7, 2-6 | | match details |
| 29.10.23 q 1 | vs. Alexander Kiefer | Alexander Kiefer - walk over | | match details |
| Fairfield Challenger - Hard | ||||
| 13.10.23 1/4 | vs. Steve Johnson | 1-6, 2-6 | | match details |
| 12.10.23 2nd round | vs. Tennys Sandgren | 5-7, 6-0, 6-3 | | match details |
| 10.10.23 1st round | vs. August Holmgren | 6-4, 6-4 | | match details |
| Tiburon Challenger - Hard | ||||
| 02.10.23 1st round | vs. Zachary Svajda | 6-76, 5-7 | | match details |
| Charleston Challenger - Hard | ||||
| 28.09.23 2nd round | vs. Ryan Peniston | 2-6, 3-6 | | match details |
| 27.09.23 1st round | vs. Thai Kwiatkowski | 6-76, 7-61, 6-2 | | match details |
| Columbus Challenger - I. hard | ||||
| 22.09.23 1/4 | vs. Cannon Kingsley | 5-7, 4-6 | | match details |
| 21.09.23 2nd round | vs. Zachary Svajda | 6-4, 7-5 | | match details |
| 20.09.23 1st round | vs. Aziz Dougaz | 6-1, 4-0, Aziz Dougaz - retired | | match details |
| Cary 2 - Hard | ||||
| 13.09.23 2nd round | vs. Guido Andreozzi | 1-6, 6-73 | | match details |
| 11.09.23 1st round | vs. Aidan Mayo | 4-6, 6-4, 6-2 | | match details |
 Winnipeg Challenger - Hard | ||||
| 16.08.23 2nd round | vs. Ryan Peniston | 0-6, 2-6 | | match details |
| 14.08.23 1st round | vs. Dominic Stricker | 7-5, 6-1 | | match details |
| Lexington Challenger - Hard | ||||
| 31.07.23 1st round | vs. Eliot Spizzirri | 6-74, 4-6 | | match details |
| Granby Challenger - Hard | ||||
| 19.07.23 2nd round | vs. Tung-Lin Wu | 3-6, 4-6 | | match details |
| 17.07.23 1st round | vs. Alexander Cozbinov | 6-1, 6-3 | | match details |
| Bloomfield Hills - Hard | ||||
| 04.07.23 1st round | vs. Mikhail Kukushkin | 2-6, 7-67, 6-75 | | match details |
| Tallahassee Challenger - Clay | ||||
| 17.04.23 1st round | vs. Seongchan Hong | 3-6, 1-6 | | match details |
| Sarasota Challenger - Clay | ||||
| 11.04.23 1st round | vs. Genaro Alberto Olivieri | 4-6, 6-4, 5-7 | | match details |
| Rome Challenger - I. hard | ||||
| 20.02.23 1st round | vs. Mats Moraing | 6-1, 4-6, 3-6 | | match details |
| Tenerife 3 - Hard | ||||
| 07.02.23 1st round | vs. Giovanni Fonio | 5-7, 4-6 | | match details |
| 06.02.23 q 1 | vs. Miguel Damas | 1-6, 6-3, 6-1 | | match details |
| 06.02.23 qual. | vs. Oscar Jose Gutierrez | 6-4, 4-6, 6-2 | | match details |
