Jan-Lennard Struff
| ATP München | 04/27 10:40 | 25 | [110] Andrej Martin v Jan-Lennard Struff [44] | 4-6,3-6 | |
| ATP Monte Carlo | 04/13 12:50 | 24 | [17] Grigor Dimitrov v Jan-Lennard Struff [41] | 6-3,6-4 | |
| ATP Cagliari | 04/09 16:30 | 27 | [37] Nikoloz Basilashvili v Jan-Lennard Struff [41] | 7-5,4-6,6-3 | |
| ATP Cagliari | 04/07 09:00 | 26 | [152] Liam Broady v Jan-Lennard Struff [41] | 4-6,2-6 | |
| ATP Cagliari | 04/06 09:00 | 25 | [107] Joao Sousa v Jan-Lennard Struff [41] | 6-1,1-6,5-7 | |
| ATP Miami | 03/28 15:00 | 25 | [42] Jan-Lennard Struff v Roberto Bautista-Agut [12] | 6-4,3-6,2-6 | |
| ATP Miami | 03/26 16:30 | 24 | [42] Jan-Lennard Struff v Ricardas Berankis [89] | 6-3,6-4 | |
| ATP Dubai | 03/16 10:00 | 25 | [12] Denis Shapovalov v Jan-Lennard Struff [39] | 6-1,6-3 | |
| ATP Dubai | 03/15 09:00 | 24 | [39] Jan-Lennard Struff v Mikhail Kukushkin [104] | 6-3,6-2 | |
| ATP Rotterdam | 03/03 12:15 | 25 | [14] David Goffin v Jan-Lennard Struff [37] | 6-4,6-0 | |
| ATP Montpellier | 02/23 11:00 | 25 | [144] Peter Gojowczyk v Jan-Lennard Struff [37] | 6-3,6-4 | |
| Australian Open | 02/09 00:00 | 23 | [121] Christopher O'Connell v Jan-Lennard Struff [37] | 7-6,7-6,6-1 | |
| ATP Cup | 02/05 23:00 | 28 | [37] Jan-Lennard Struff v Andrey Rublev [8] | 6-3,1-6,2-6 | |
| ATP Cup | 02/05 23:00 | 1 | Dusan Lajovic v Jan-Lennard Struff | View | |
| ATP Cup | 02/04 23:00 | 1 | [26] Dusan Lajovic v Jan-Lennard Struff [37] | 6-3,3-6,4-6 | |
| ATP Cup | 02/04 23:00 | 1 | Filip Krajinovic v Jan-Lennard Struff | Cancelled | |
| ATP Cup | 02/02 23:00 | 1 | [37] Jan-Lennard Struff v Milos Raonic [15] | 7-6,7-6 | |
| ATP Antalya | 01/11 08:00 | 27 | [72] Jeremy Chardy v Jan-Lennard Struff [37] | 4-6,6-2,7-6 | |
| ATP Antalya | 01/10 09:55 | 26 | [250] Hugo Grenier v Jan-Lennard Struff [37] | Walkover | |
| ATP Antalya | 01/08 07:00 | 25 | [269] Pavel Kotov v Jan-Lennard Struff [37] | 4-6,3-6 | |
| ATP Sofia | 11/10 17:30 | 26 | [74] Vasek Pospisil v Jan-Lennard Struff [36] | 6-3,6-4 | |
| ATP Paris | 11/03 18:15 | 25 | [15] Pablo Carreno-Busta v Jan-Lennard Struff [35] | 7-6,6-2 | |
| ATP Paris | 11/02 14:00 | 24 | [36] Nikoloz Basilashvili v Jan-Lennard Struff [34] | 4-6,2-6 | |
| ATP Wien | 10/28 14:25 | 25 | [5] Stefanos Tsitsipas v Jan-Lennard Struff [34] | 6-7,6-3,6-4 | |
| ATP Köln 2 | 10/22 17:40 | 26 | [32] Jan-Lennard Struff v Yoshihito Nishioka [56] | 6-2,3-6,6-7 | |
| ATP Köln 2 | 10/21 13:50 | 25 | [32] Jan-Lennard Struff v Marco Cecchinato [77] | 6-3,6-1 | |
| ATP Köln | 10/12 12:00 | 25 | [32] Jan-Lennard Struff v Oscar Otte [142] | 4-6,3-6 | |
| ATP Köln | 10/12 08:00 | - | Jan-Lennard Struff v Mikael Ymer | View | |
| Franska öppna | 10/01 10:30 | 24 | [32] Jan-Lennard Struff v Daniel Altmaier [186] | 3-6,6-7,3-6 | |
| Franska öppna | 09/28 14:20 | 23 | [32] Jan-Lennard Struff v Frances Tiafoe [67] | 3-6,7-6,6-3,6-7,6-3 |
Wikipedia - Jan-Lennard Struff
Jan-Lennard Struff, född 25 april 1990, är en tysk tennisspelare.