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
26.05.90, 35 years
26.05.90, 35 years
Niklas Guttau vs. Dennis Ruesenberg - head to head matches
| 31.07.17 | q 1 | Niklas Guttau | Dennis Ruesenberg | 6-3, 6-0 | match details |  Germany F9 | Clay |
Niklas Guttau form & Dennis Ruesenberg form
Niklas Guttau - last matches
 M25 Satu - Clay | ||||
| 25.05.25 q 1 | vs. Rares Andrei Golescu | 6-2, 6-0 |  | match details |
 M15 Oldenzaal - Clay | ||||
| 18.08.21 1st round | vs. Niels Lootsma | 3-6, 2-6 |  | match details |
| 17.08.21 qual. | vs. Nicolas Bruna | 3-6, 6-3, 10-6 | | match details |
| 16.08.21 q 2 | vs. Jordi Garcia Mestre | 6-4, 6-1 | | match details |
| 15.08.21 q 1 | vs. Egill Sigurdsson | 6-1, 6-4 | | match details |
| Hamburg - Clay | ||||
| 10.07.21 q 1 | vs. Carlos Taberner | 1-6, 2-6 | | match details |
 M15 Antalya - Clay | ||||
| 18.04.21 q 1 | vs. Cheong-Eui Kim | 1-6, - Niklas Guttau - retired | | match details |
| M15 Antalya - Clay | ||||
| 11.04.21 q 1 | vs. Edoardo Graziani | 4-6, 1-6 | | match details |
| M15 Antalya - Clay | ||||
| 06.04.21 qual. | vs. Edoardo Graziani | 2-6, 3-6 | | match details |
| 05.04.21 q 2 | vs. Tomas Lanik | 6-2, 6-2 | | match details |
| 04.04.21 q 1 | vs. Michel Hopp | 6-1, 6-3 | | match details |
 M15 Sharm - Hard | ||||
| 16.03.21 qual. | vs. Shao-Fan Liu | 3-6, 6-1, 4-10 | | match details |
| 15.03.21 q 2 | vs. Lorenzo Rottoli | 6-3, 6-1 | | match details |
| 14.03.21 q 1 | vs. Babji Siva Atturu | 6-0, 6-2 | | match details |
| M15 Sharm - Hard | ||||
| 09.03.21 qual. | vs. Illya Beloborodko | 7-5, 4-6, 4-10 | | match details |
| 08.03.21 q 1 | vs. Yacoub Makzoume | 6-3, 6-2 | | match details |
| 08.03.21 q 2 | vs. Mirko Lagasio | 6-3, 4-6, 10-4 | | match details |
 M15 Monastir - Hard | ||||
| 01.03.21 q 1 | vs. Stefano Reitano | 3-6, 6-3, 7-10 | | match details |
| M15 Monastir - Hard | ||||
| 22.02.21 q 2 | vs. Samir Hamza Reguig | 7-66, 1-6, 9-11 | | match details |
| 21.02.21 q 1 | vs. Milan Drinic | 6-4, 6-4 | | match details |
 All Lower - Clay | ||||
| 25.06.20 1st round | vs. Peter Heller | 1-6, 2-6 | | match details |
| 23.06.20 1st round | vs. Matthias Bachinger | 3-6, 1-6 | | match details |
| 14.06.20 1st round | vs. Adrian Oetzbach | 3-6, 6-2, 2-6 | | match details |
| 13.06.20 1st round | vs. Lucas Gerch | 4-6, 3-6 | | match details |
| 12.06.20 1st round | vs. Daniel Altmaier | 3-6, 6-4, 3-6 | | match details |
| 11.06.20 1st round | vs. Maximilian Marterer | 1-6, 3-6 | | match details |
| M15 Monastir - Hard | ||||
| 10.03.20 1st round | vs. Vladimir Korolev | 2-6, 1-6 | | match details |
| M15 Oberhaching - I. hard | ||||
| 16.02.20 q 1 | vs. Joel Kuster | 6-4, 7-64 | | match details |
| 16.02.20 q 2 | vs. Emilien Voisin | 6-4, 6-78, 6-10 | | match details |
 M15 Heraklion - Hard | ||||
| 24.11.19 q 1 | vs. Athanassios Manekas | 5-7, 2-6 | | match details |
Dennis Ruesenberg - last matches
| Netherlands F7 - Clay | ||||
| 28.08.17 q 2 | vs. Bobbie De Goeijen | 7-5, 4-6, 2-6 | | match details |
| 28.08.17 q 1 | vs. Nicholas Williams | 6-1, 6-3 | | match details |
| Netherlands F5 - Clay | ||||
| 14.08.17 q 2 | vs. Maikel Borg | 0-6, 2-6 | | match details |
| 14.08.17 q 1 | vs. Nicholas Katzaros | 6-4, 6-2 | | match details |
| Germany F9 - Clay | ||||
| 31.07.17 q 1 | vs. Niklas Guttau | 3-6, 0-6 | | match details |