 Spain: Monzon - Singles - Main |
|---|
| Quarter-finals | Vinogradova P. | Koch B. | 2:1 (5:7, 6:4, 6:3) | details | 16.05.2013 |
| 1/8-finals | Tringa J. | Koch B. | 0:2 (3:6, 0:6) | details | 15.05.2013 |
| 1/16-finals | Aubets Macia M. | Koch B. | 0:2 (2:6, 1:6) | details | 13.05.2013 |
| Spain: W80+H Les Franqueses Del Valles - Singles - Main |
|---|
| 1/8-finals | Belzunce-Crompin A. | Koch B. | 2:0 (6:3, 6:2) | details | 24.04.2013 |
| 1/16-finals | Martinez S. A. | Koch B. | 1:2 (2:6, 6:4, 4:6) | details | 22.04.2013 |
 Switzerland: Frauenfeld - Singles - Main |
|---|
| Quarter-finals | Deichmann K. | Koch B. | 2:0 (6:1, 6:3) | details | 08.03.2013 |
| 1/8-finals | Koch B. | Kirillova K. | 2:0 (6:2, 6:4) | details | 07.03.2013 |
| 1/16-finals | Koelliker S. | Koch B. | 0:2 (5:7, 3:6) | details | 05.03.2013 |
 Czech Republic: W60 Prague 2 - Singles - Main |
|---|
| 1/16-finals | Koch B. | Borecka M. | 0:2 (1:6, 6:7) | details | 25.09.2012 |
| Switzerland: Caslano - Singles - Main |
|---|
| 1/8-finals | Mayr J. | Koch B. | 2:0 (6:1, 6:0) | details | 29.08.2012 |
| 1/16-finals | Gulbe L. | Koch B. | 0:1 RET. (1:6, 1:4) | details | 27.08.2012 |
 Germany: W25 Braunschweig - Singles - Main |
|---|
| 1/8-finals | Koch B. | Alexandrova E. | 0:2 (4:6, 3:6) | details | 23.08.2012 |
| 1/16-finals | Koch B. | Baranska A. | 2:0 (7:5, 6:3) | details | 22.08.2012 |
 Serbia: Pirot - Singles - Main |
|---|
| 1/16-finals | Koch B. | Lazarevic J. | 0:2 (3:6, 6:7) | details | 07.08.2012 |
 Finland: W15 Savitaipale - Singles - Main |
|---|
| 1/16-finals | Brozda O. | Koch B. | 2:1 (6:1, 2:6, 6:1) | details | 31.07.2012 |
| Finland: Tampere - Singles - Main |
|---|
| Semi-finals | Roma S. | Koch B. | 2:0 (6:0, 6:2) | details | 28.07.2012 |
| Quarter-finals | Koch B. | Tigu A. | 2:1 (7:6, 4:6, 6:1) | details | 27.07.2012 |
| 1/8-finals | Koch B. | Burger C. | 2:1 (4:6, 7:5, 6:2) | details | 26.07.2012 |
| 1/16-finals | Flood E. | Koch B. | 0:2 (1:6, 0:6) | details | 25.07.2012 |
| Czech Republic: W25 Jablonec nad Nisou - Singles - Main |
|---|
| Semi-finals | Fabikova K. | Koch B. | 1:0 RET. (6:1, 3:0) | details | 16.06.2012 |
| Quarter-finals | Koch B. | Vierin V. | 2:0 (7:5, 6:1) | details | 15.06.2012 |
| 1/8-finals | Kan V. | Koch B. | 0:2 (4:6, 2:6) | details | 14.06.2012 |
| 1/16-finals | Koch B. | Jankovska T. | 2:0 (6:2, 6:4) | details | 12.06.2012 |
 Turkey: Istanbul - Singles - Main |
|---|
| Quarter-finals | Steinherr J. | Koch B. | 2:1 (7:64, 0:6, 7:5) | details | 18.05.2012 |
| 1/8-finals | Koch B. | Martinez S. A. | 2:0 (6:4, 6:4) | details | 17.05.2012 |
| 1/16-finals | Anil C. | Koch B. | 0:2 (0:6, 1:6) | details | 15.05.2012 |
| Germany: W80 Wiesbaden - Singles - Main |
|---|
| 1/16-finals | Koch B. | Laurendon A. | 1:2 (6:4, 1:6, 4:6) | details | 02.05.2012 |
| Germany: W80 Wiesbaden - Singles - Qualification |
|---|
| Final | Daniels C. | Koch B. | 0:2 (3:6, 2:6) | details | 30.04.2012 |
| Semi-finals | Schmid V. | Koch B. | 0:0 RET. (1:5) | details | 30.04.2012 |
| Quarter-finals | Mathias Y. | Koch B. | 0:2 (2:6, 1:6) | details | 29.04.2012 |
