| Date | Chess tournament name | Status | 
|---|---|---|
| 2023-06-08 to 2023-06-11 | 13. Rheinland-Pfalz-Open Neuwied-Engers 2023 ![]()  | 
                                                                                                Finished | 
| 2022-06-16 to 2022-06-19 | 12. Rheinland-Pfalz-Open Neuwied-Gladbach 2022 ![]()  | 
                                                                                                Finished | 
| 2019-06-20 to 2019-06-23 | 11. Rheinland-Pfalz-Open Weilerbach 2019 ![]()  | 
                                                                                                Finished | 
| 2019-04-13 to 2019-04-20 | Rheinlandmeisterschaft 2019 Hauptturnier ![]()  | 
                                                                                                Finished | 
| 2017-06-15 to 2017-06-18 | 9. Rheinland-Pfalz-Open Lambsheim 2017 ![]()  | 
                                                                                                Finished | 
| 2015-06-04 to 2015-06-07 | 7. Rheinland-Pfalz-Open Frankenthal, 04.-07. Juni 2015 ![]()  | 
                                                                                                Finished | 
| 2014-06-19 to 2014-06-22 | 6. Rheinland-Pfalz-Open 19.-22.06.2014, Gau-Algesheim ![]()  | 
                                                                                                Finished | 
| 2013-05-30 to 2013-06-02 | 5. Rheinland-Pfalz-Open 30.05.-02.06.2013, Worms ![]()  | 
                                                                                                Finished | 
| 2010-07-15 to 2010-07-18 | 2. Rheinland-Pfalz Open Schweich 2010 ![]()  | 
                                                                                                Finished | 
| Date | Players & Opening | Result | ECO | View | 
|---|---|---|---|---|
| 2019.06.23 | Leis, Adalbert (2060)  vs (1752) Sassenroth, Guenter 11. Rheinland-Pfalz-Open Spanish Open  | 
                                                                                                                                                0-1 | C80 | |
| 2019.06.22 | Sassenroth, Guenter (1752)  vs (1502) Hoeblich, Markus 11. Rheinland-Pfalz-Open Sicilian Accelerated Dragon  | 
                                                                                                                                                1-0 | B34 | |
| 2019.06.22 | Behr, Julian (1593)  vs (1752) Sassenroth, Guenter 11. Rheinland-Pfalz-Open Two Knights - Modern Bishop  | 
                                                                                                                                                1/2-1/2 | C55 | |
| 2019.06.21 | Sassenroth, Guenter (1752)  vs (1417) Menold, Maxim 11. Rheinland-Pfalz-Open Sicilian Yugoslav Dragon - Rauzer  | 
                                                                                                                                                1/2-1/2 | B76 | |
| 2019.06.21 | Hoekstra, Peter (1979)  vs (1752) Sassenroth, Guenter 11. Rheinland-Pfalz-Open King's Knight - Scotch Gambit  | 
                                                                                                                                                1-0 | C44 | |
| 2019.06.20 | Sassenroth, Guenter (1752)  vs (1400) Unbehend, Marius 11. Rheinland-Pfalz-Open French Winawer  | 
                                                                                                                                                1-0 | C15 | |
| 2019.06.20 | Tscharotschkin, Michael (2197)  vs (1752) Sassenroth, Guenter 11. Rheinland-Pfalz-Open Queen's Pawn - Mason  | 
                                                                                                                                                1-0 | D00 | |
| 2017.06.18 | Vohmann, Wolfgang (1902)  vs (1768) Sassenroth, Guenter 9. Rheinland-Pfalz-Open Reti Zukertort  | 
                                                                                                                                                1-0 | A06 | |
| 2017.06.17 | Sassenroth, Guenter (1768)  vs (1385) Boos-Guckes, Astrid 9. Rheinland-Pfalz-Open Scandinavian  | 
                                                                                                                                                1-0 | B01 | |
| 2017.06.17 | Noeckler, Alexander (1912)  vs (1768) Sassenroth, Guenter 9. Rheinland-Pfalz-Open English Asymmetrical  | 
                                                                                                                                                1-0 | A34 | |
| 2017.06.16 | Sassenroth, Guenter (1768)  vs (1929) Costea, Valerius 9. Rheinland-Pfalz-Open Sicilian Open  | 
                                                                                                                                                1/2-1/2 | B54 | |
| 2017.06.16 | Dietz, Daniel (1242)  vs (1768) Sassenroth, Guenter 9. Rheinland-Pfalz-Open Two Knights - Fritz  | 
                                                                                                                                                0-1 | C57 | |
| 2017.06.15 | Sassenroth, Guenter (1768)  vs (1353) Reiss, Peter 9. Rheinland-Pfalz-Open Sicilian Scheveningen  | 
                                                                                                                                                1/2-1/2 | B80 | |
| 2017.06.15 | Lopez-Rojas, Jeffrey (2190)  vs (1768) Sassenroth, Guenter 9. Rheinland-Pfalz-Open Queen's Gambit Declined  | 
                                                                                                                                                1-0 | D30 | 
| Date | Players & Opening | Result | ECO | View | 
|---|---|---|---|---|
| 2019.06.21 | Sassenroth, Guenter (1752) vs Menold, Maxim 11th Rheinland-Pfalz Open Sicilian Yugoslav Dragon - Rauzer  | 
                                                                                                                                                1/2-1/2 | B76 | |
| 2019.06.22 | Behr, Julian vs (1752) Sassenroth, Guenter 11th Rheinland-Pfalz Open Two Knights - Modern Bishop  | 
                                                                                                                                                1/2-1/2 | C55 | |
| 2019.06.20 | Sassenroth, Guenter (1752) vs (1400) Unbehend, Marius 11th Rheinland-Pfalz Open French Winawer  | 
                                                                                                                                                1-0 | C15 | |
| 2019.06.22 | Sassenroth, Guenter (1752) vs (1502) Hoeblich, Markus 11th Rheinland-Pfalz Open Sicilian Accelerated Dragon  | 
                                                                                                                                                1-0 | B34 | |
| 2017.06.18 | Vohmann, Wolfgang (1902) vs (1768) Sassenroth, Guenter 9th Rheinland-Pfalz Open 2017 Reti Zukertort  | 
                                                                                                                                                1-0 | A06 | |
| 2017.06.17 | Sassenroth, Guenter (1768) vs (1385) Boos-Guckes, Astrid 9th Rheinland-Pfalz Open 2017 Scandinavian  | 
                                                                                                                                                1-0 | B01 | |
| 2017.06.17 | Noeckler, A. (1912) vs (1768) Sassenroth, Guenter 9th Rheinland-Pfalz Open 2017 English Asymmetrical  | 
                                                                                                                                                1-0 | A34 | |
| 2017.06.16 | Sassenroth, Guenter (1768) vs (1929) Costea, V. 9th Rheinland-Pfalz Open 2017 Sicilian Open  | 
                                                                                                                                                1/2-1/2 | B54 | |
| 2017.06.16 | Dietz, Daniel vs (1768) Sassenroth, Guenter 9th Rheinland-Pfalz Open 2017 Two Knights - Fritz  | 
                                                                                                                                                0-1 | C57 | |
| 2017.06.15 | Sassenroth, Guenter (1768) vs Reiss, Peter 9th Rheinland-Pfalz Open 2017 Sicilian Scheveningen  | 
                                                                                                                                                1/2-1/2 | B80 | |
| 2017.06.15 | Lopez-Rojas, Jeffrey (2190) vs (1768) Sassenroth, Guenter 9th Rheinland-Pfalz Open 2017 Queen's Gambit Declined  | 
                                                                                                                                                1-0 | D30 | |
| 2019.06.21 | Hoekstra, Pe (1979) vs (1752) Sassenroth, Guenter 11th Rheinland-Pfalz Open King's Knight - Scotch Gambit  | 
                                                                                                                                                1-0 | C44 | |
| 2019.06.23 | Leis, A (2060) vs (1752) Sassenroth, Guenter 11th Rheinland-Pfalz Open Spanish Open  | 
                                                                                                                                                0-1 | C80 | |
| 2019.06.20 | Tscharotschkin, M (2197) vs (1752) Sassenroth, Guenter 11th Rheinland-Pfalz Open Queen's Pawn - Mason  | 
                                                                                                                                                1-0 | D00 |