| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. G Gaertner vs V Arapovic |
| ½-½ | 27 |
1989 |
Mendrisio op | A42 Modern Defense, Averbakh System |
| 2. A Kovacevic vs G Gaertner |
| ½-½ | 54 |
1999 |
EUCup Gr4 | B33 Sicilian |
| 3. O Staudner vs G Gaertner |
| ½-½ | 22 |
2000 |
Tch-AUT -01 | B40 Sicilian |
| 4. A Postl vs G Gaertner |
| ½-½ | 58 |
2000 |
Tch-AUT -01 | A04 Reti Opening |
| 5. G Gaertner vs W Posch |
| ½-½ | 33 |
2001 |
Tch-AUT 2000-01 | A01 Nimzovich-Larsen Attack |
| 6. P Roth vs G Gaertner |
| ½-½ | 13 |
2001 |
TCh-AUT -2 | B13 Caro-Kann, Exchange |
| 7. G Gaertner vs H Penz |
| ½-½ | 71 |
2001 |
Tch-AUT 2000-01 | D13 Queen's Gambit Declined Slav, Exchange Variation |
| 8. H Teske vs G Gaertner |
| ½-½ | 56 |
2001 |
TCh-AUT -2 | A18 English, Mikenas-Carls |
| 9. H Peterwagner vs G Gaertner |
| ½-½ | 82 |
2001 |
Tch-AUT 2000-01 | B16 Caro-Kann, Bronstein-Larsen Variation |
| 10. G Gaertner vs K Petzold |
| ½-½ | 36 |
2001 |
ECC | D13 Queen's Gambit Declined Slav, Exchange Variation |
| 11. G Gaertner vs T Mahdy |
| ½-½ | 21 |
2001 |
Tch-AUT 2000-01 | A48 King's Indian |
| 12. M Sjoberg vs G Gaertner |
| ½-½ | 56 |
2001 |
ECC | D19 Queen's Gambit Declined Slav, Dutch |
| 13. H Teske vs G Gaertner |
| ½-½ | 22 |
2001 |
Tch-AUT 2000-01 | D10 Queen's Gambit Declined Slav |
| 14. G Gaertner vs K Neumeier |
| ½-½ | 63 |
2002 |
TCh-AUT 2001-2 | E71 King's Indian, Makagonov System (5.h3) |
| 15. G Gaertner vs L O'Toole |
| ½-½ | 64 |
2006 |
European Club Cup | E30 Nimzo-Indian, Leningrad |
| 16. S Kosmo vs G Gaertner |
| ½-½ | 40 |
2006 |
European Club Cup | E54 Nimzo-Indian, 4.e3, Gligoric System |
| 17. M Tolonen vs G Gaertner |
| ½-½ | 56 |
2006 |
European Club Cup | B18 Caro-Kann, Classical |
| 18. G Gaertner vs M Roeder |
| ½-½ | 15 |
2006 |
European Club Cup | E21 Nimzo-Indian, Three Knights |