| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. L D'Costa vs J McDonnell |
| 0-1 | 47 |
1999 |
Ch Great Britain, Scarborough (England) | B63 Sicilian, Richter-Rauzer Attack |
| 2. L D'Costa vs M Bissieres |
| ½-½ | 58 |
2001 |
Glorney Cup | B91 Sicilian, Najdorf, Zagreb (Fianchetto) Variation |
| 3. L D'Costa vs M Bosboom |
| 1-0 | 39 |
2005 |
Amsterdam Chess Tournament | B90 Sicilian, Najdorf |
| 4. L D'Costa vs M Hoffmann |
| ½-½ | 23 |
2005 |
Amsterdam Chess Tournament | B85 Sicilian, Scheveningen, Classical |
| 5. L D'Costa vs Huzman |
| ½-½ | 39 |
2005 |
Amsterdam Chess Tournament | B92 Sicilian, Najdorf, Opocensky Variation |
| 6. L D'Costa vs M Roos |
| 1-0 | 48 |
2005 |
E.U. Championship and Cork Chess Congress | B47 Sicilian, Taimanov (Bastrikov) Variation |
| 7. L D'Costa vs Kharlov |
| 1-0 | 38 |
2005 |
Amsterdam Chess Tournament | B65 Sicilian, Richter-Rauzer Attack, 7...Be7 Defense, 9...Nxd4 |
| 8. L D'Costa vs V Laznicka |
| 0-1 | 44 |
2008 |
European Union Championships | B46 Sicilian, Taimanov Variation |
| 9. L D'Costa vs E Forsaa |
 | 1-0 | 40 |
2009 |
Gibtelecom | B90 Sicilian, Najdorf |
