Country
Birthdate
Height
Weight
Profi since
Play
Ranking's position
Points
Prize money
Birthdate
Height
Weight
Profi since
Play
Ranking's position
Points
Prize money
Germany
19.02.92, 33 years
19.02.92, 33 years
Daniel Nguyen vs. Thorsten Bertsch - head to head matches
| 23.09.13 | 2nd round | Daniel Nguyen | Thorsten Bertsch | 6-1, 6-3 | match details |  USA F25 | Hard |
Daniel Nguyen form & Thorsten Bertsch form
Daniel Nguyen - last matches
| Houston Challenger - Hard | ||||
| 13.11.19 2nd round | vs. Jason Jung | 3-6, 2-6 |  | match details |
| 12.11.19 1st round | vs. Sumit Sarkar | 6-1, 6-0 |  | match details |
 M25 Tay - Hard | ||||
| 13.10.19 fin | vs. Rio Noguchi | 6-4, 6-2 | | match details |
| 12.10.19 1/2 | vs. Billy Harris | 2-6, 7-65, 6-1 | | match details |
| 11.10.19 1/4 | vs. Shuichi Sekiguchi | 5-1, Shuichi Sekiguchi - retired | | match details |
| 10.10.19 2nd round | vs. Arjun Kadhe | 6-2, 7-67 | | match details |
| 09.10.19 1st round | vs. Hiroyasu Ehara | 6-4, 6-2 | | match details |
| M25 Tay - Hard | ||||
| 07.10.19 fin | vs. Nam Hoang Ly | 6-3, 7-5 | | match details |
| 05.10.19 1/2 | vs. Kazuki Nishiwaki | 6-2, 6-3 | | match details |
| 04.10.19 1/4 | vs. Goncalo Oliveira | Goncalo Oliveira - walk over | | match details |
| 03.10.19 2nd round | vs. Makoto Ochi | 4-6, 6-4, 7-5 | | match details |
| 02.10.19 1st round | vs. Alen Rogic Hadzalic | 6-3, 6-1 | | match details |
| Columbus Challenger - I. hard | ||||
| 16.09.19 1st round | vs. Gabriel Petit | 6-73, 6-3, 4-6 | | match details |
| Cary Challenger - Hard | ||||
| 12.09.19 3rd round | vs. Jc Aragone | 3-6, 2-6 | | match details |
| 11.09.19 2nd round | vs. Mitchell Krueger | 6-3, 3-6, 6-3 | | match details |
| 09.09.19 1st round | vs. Benjamin Sigouin | 6-1, 6-3 | | match details |
| Winston-Salem - Hard | ||||
| 18.08.19 qual. | vs. Raymond Sarmiento | 2-6, 3-6 | | match details |
| 17.08.19 q 1 | vs. Marcelo Arevalo | 6-4, 4-6, 7-63 | | match details |
| M25 Memphis - Hard | ||||
| 16.08.19 1/2 | vs. Roberto Cid Subervi | 4-6, 6-4, 2-6 | | match details |
| 15.08.19 1/4 | vs. Kevin King | 6-4, 6-3 | | match details |
| 14.08.19 2nd round | vs. Liam Caruana | 6-4, 7-67 | | match details |
| 13.08.19 1st round | vs. Joshua Peck | 5-3, Joshua Peck - retired | | match details |
 Winnipeg Challenger - Hard | ||||
| 13.07.19 1/2 | vs. Brayden Schnur | 2-6, 5-7 | | match details |
| 12.07.19 1/4 | vs. Antoine Hoang | 7-65, 4-6, 6-3 | | match details |
| 11.07.19 3rd round | vs. Enzo Couacaud | 1-6, 6-3, 6-2 | | match details |
| 10.07.19 2nd round | vs. Go Soeda | 6-3, Go Soeda - retired | | match details |
| 10.07.19 1st round | vs. Alexis Galarneau | 1-6, 6-1, 7-5 | | match details |
| Columbus Challenger - Hard | ||||
| 11.06.19 2nd round | vs. Thai Kwiatkowski | 6-4, 2-6, 4-6 | | match details |
| 10.06.19 1st round | vs. Gijs Brouwer | 6-4, 6-75, 7-5 | | match details |
| Little Rock - Hard | ||||
| 07.06.19 3rd round | vs. Ryan Shane | 6-3, 3-6, 4-6 | | match details |
Thorsten Bertsch - last matches
| USA F26 - Hard | ||||
| 22.09.14 q 1 | vs. Kevin Lynch | 6-2, 2-6, 6-3 | | match details |
| 22.09.14 qual. | vs. Alessandro-Damiano Ventre | 2-6, 2-6 | | match details |
| 22.09.14 q 2 | vs. Marko Goles Babic | 6-2, 2-6, 6-3 | | match details |
| 22.09.14 | vs. Bo Hardt | 6-1, 6-1 | | match details |
| USA F24 - Hard | ||||
| 08.09.14 q 1 | vs. Brian Battistone | 1-6, 2-6 | | match details |
| 08.09.14 | vs. Mohamed Aboulkassem | 0-6, 6-3, 6-3 | | match details |
| USA F25 - Hard | ||||
| 23.09.13 2nd round | vs. Daniel Nguyen | 1-6, 3-6 | | match details |
| 23.09.13 qual. | vs. Rafael Davidian | 6-4, 7-63 | | match details |
| 23.09.13 | vs. Amirardalan Safi | 6-1, 6-0 | | match details |
| 23.09.13 1st round | vs. Masayoshi Ono | 3-6, 7-5, 6-0 | | match details |
| 23.09.13 q 1 | vs. Zaki Al Abdullah | 6-2, 6-1 | | match details |
| 23.09.13 q 2 | vs. Milen Ianakiev | 6-3, 6-1 | | match details |
| USA F24 - Hard | ||||
| 16.09.13 | vs. Filip Karlsson | Filip Karlsson - walk over | | match details |
| 16.09.13 q 2 | vs. John Lamble | 1-6, 2-6 | | match details |
| 16.09.13 q 1 | vs. Teague Hamilton | 6-3, 7-64 | | match details |
| USA F23 - Hard | ||||
| 09.09.13 | vs. Joshua Friedman | 2-6, 3-6 | | match details |
 Germany F17 - I. hard | ||||
| 04.10.10 1st round | vs. Kevin Deden | 3-6, 0-6 | | match details |