| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. G Welling vs G Van der Wall |
| 1-0 | 33 |
1975 |
Eindhoven,club | A00 Uncommon Opening |
| 2. G Welling vs R Verhey |
 | 1-0 | 38 |
1976 |
Eindhoven,club | A00 Uncommon Opening |
| 3. G Welling vs F Metzger |
 | 1-0 | 28 |
1977 |
Eindhoven,club | A00 Uncommon Opening |
| 4. G Welling vs E Koning |
 | 1-0 | 31 |
1979 |
Eindhoven,club | A00 Uncommon Opening |
| 5. G Welling vs J Mascini |
 | 1-0 | 29 |
1979 |
KNSB league | A00 Uncommon Opening |
| 6. G Welling vs R Hofman |
 | 1-0 | 40 |
1980 |
Breda, Variant open | A00 Uncommon Opening |
| 7. G Welling vs R Druon |
 | 1-0 | 48 |
1980 |
NBSB league | A00 Uncommon Opening |
| 8. G Welling vs D Dieks |
| 1-0 | 35 |
1980 |
Breda, Variant open | A00 Uncommon Opening |
| 9. G Welling vs P Buys |
 | 1-0 | 41 |
1980 |
Eindhoven,club | A00 Uncommon Opening |
| 10. G Welling vs D Webbink |
 | 1-0 | 29 |
1981 |
Eindhoven,club | A00 Uncommon Opening |
| 11. G Welling vs P Kok |
 | 1-0 | 41 |
1981 |
Eindhoven,match | A00 Uncommon Opening |
| 12. G Welling vs H Scholten |
 | 1-0 | 27 |
1981 |
NBSB league | A00 Uncommon Opening |
| 13. G Welling vs E Ten Haaf |
 | 1-0 | 8 |
1981 |
Eindhoven blitz | A00 Uncommon Opening |
| 14. G Welling vs B Flamion |
| 1-0 | 37 |
1983 |
Liege open | A00 Uncommon Opening |
| 15. G Welling vs J Marth |
| 1-0 | 36 |
1983 |
Oberwart open | A00 Uncommon Opening |
| 16. G Welling vs F Damm |
| 1-0 | 34 |
1985 |
Gent open | A00 Uncommon Opening |
| 17. G Welling vs T Peleman |
 | 1-0 | 42 |
1986 |
Gent open | A00 Uncommon Opening |
| 18. G Welling vs J Kleindouwel |
| 1-0 | 41 |
1987 |
Eindhoven,club | A00 Uncommon Opening |
| 19. G Welling vs J Vanheste |
| 1-0 | 39 |
1987 |
KNSB league | A00 Uncommon Opening |
| 20. G Welling vs P Scheeren |
 | 1-0 | 41 |
1987 |
Eindhoven,club | A00 Uncommon Opening |
| 21. G Welling vs H Engberts |
 | 1-0 | 25 |
1988 |
Utrecht open | A00 Uncommon Opening |
| 22. G Welling vs M Huizer |
| 1-0 | 31 |
1988 |
Eindhoven,club | A00 Uncommon Opening |
| 23. G Welling vs F Krudde |
| 1-0 | 58 |
1988 |
Dutch ch 1/2 finals | A00 Uncommon Opening |
| 24. G Welling vs E Bongers |
 | 1-0 | 60 |
1989 |
? | A00 Uncommon Opening |
| 25. G Welling vs J Dubbeldam |
| 1-0 | 31 |
1991 |
Corr NL/M | A00 Uncommon Opening |