| Challenger Ismaning |
10/14 09:00 |
46 |
Tristan Lamasine
v
Marc Sieber
|
6-3,6-2
|
|
| Challenger Ismaning |
10/13 10:25 |
45 |
Robin Kern
v
Marc Sieber
|
3-6,2-6
|
|
| Challenger Ortisei |
10/06 13:30 |
45 |
Marc Sieber
v
Albano Olivetti
|
6-4,6-7,4-6
|
|
| ITF Germany F14 |
10/04 15:05 |
26 |
Francesco Ferrari
v
Marc Sieber
|
2-6,6-4,6-3
|
|
| ITF Germany F14 |
10/02 10:00 |
25 |
Max Wiskandt
v
Marc Sieber
|
2-6,0-6
|
|
| ITF Germany F14 |
10/01 10:00 |
44 |
Marc Sieber
v
Henry V-D Schulenburg
|
6-1,6-2
|
|
| ITF Germany F14 |
09/30 11:30 |
44 |
Marc Sieber
v
Patrick Nystroem
|
6-1,7-5
|
|
| Challenger Sibiu Qual |
09/16 12:00 |
46 |
Nicolae Frunza
v
Marc Sieber
|
6-4,6-3
|
|
| Challenger Seville |
09/01 16:00 |
45 |
[454] Marc Sieber
v
Bernabe Zapata Miralles
[276] |
6-7,3-6
|
|
| Challenger Mallorca |
08/26 11:30 |
45 |
Federico Zeballos
v
Marc Sieber
|
3-6,6-1,6-3
|
|
| Challenger Meerbusch |
08/14 12:30 |
25 |
[429] Marc Sieber
v
Johan Tatlot
[261] |
6-7,6-4,4-6
|
|
| Challenger Meerbusch Qual |
08/13 09:00 |
54 |
[348] Tristan Lamasine
v
Marc Sieber
[429] |
6-7,5-7
|
|
| Challenger Meerbusch Qual |
08/12 09:40 |
46 |
Marc Sieber
v
Adrian Oetzbach
|
6-0,6-0
|
|
| Challenger Meerbusch Qual |
08/11 11:45 |
45 |
Mats Rosenkranz
v
Marc Sieber
|
3-6,3-6
|
|
| Challenger Pullach Qual |
08/04 09:00 |
45 |
[429] Marc Sieber
v
Julian Lenz
[479] |
4-6,6-4,4-6
|
|
| Challenger Liberec Qual |
07/29 08:30 |
46 |
Marc Sieber
v
Marvin Moeller
|
2-6,5-7
|
|
| Challenger Liberec Qual |
07/28 08:00 |
45 |
[354] Juan Pablo Ficovich
v
Marc Sieber
[439] |
3-6,6-3,3-6
|
|
| Challenger Prague |
07/24 11:30 |
25 |
[264] Aleksandr Nedovyesov
v
Marc Sieber
[439] |
6-0,6-4
|
|
| Challenger Prague Qual |
07/23 10:10 |
54 |
[407] Peter Torebko
v
Marc Sieber
[439] |
1-6,4-6
|
|
| Challenger Prague Qual |
07/22 14:10 |
46 |
[482] Dominik Kellovsky
v
Marc Sieber
[447] |
3-6,6-7
|
|
| Challenger Prague |
07/21 14:05 |
45 |
Mathieu Perchicot
v
Marc Sieber
|
6-1,2-6,3-6
|
|
| ITF Germany F8 |
07/19 09:30 |
26 |
[447] Marc Sieber
v
Christopher Heyman
[307] |
1-6,5-7
|
|
| ITF Germany F8 |
07/17 14:05 |
25 |
[385] Viktor Durasovic
v
Marc Sieber
[447] |
3-6,2-6
|
|
| Challenger Caltanissetta |
06/12 08:00 |
25 |
[146] Marcelo Arevalo
v
Marc Sieber
[412] |
1-6,6-1,7-5
|
|
| Challenger Caltanissetta Qual |
06/11 10:15 |
54 |
[326] Joao Souza
v
Marc Sieber
[412] |
6-2,3-6,4-6
|
|
| Challenger Caltanissetta Qual |
06/10 11:30 |
46 |
[410] Marc Sieber
v
Pawel Cias
[408] |
6-0,6-1
|
|
| Challenger Caltanissetta Qual |
06/09 13:25 |
45 |
Mikhail Balmashev
v
Marc Sieber
|
0-6,1-6
|
|
| Challenger Prostejov Qual |
06/03 15:25 |
46 |
[410] Marc Sieber
v
Jan Satral
[365] |
6-4,3-6,4-6
|
|
| Challenger Prostejov Qual |
06/03 09:45 |
45 |
Pavel Nejedly
v
Marc Sieber
|
1-6,5-7
|
|
| ITF Hungary F2 |
05/18 08:00 |
28 |
Mate Valkusz
v
Marc Sieber
|
6-1,6-1
|
|