| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. D Ludwig vs Robert Persante |
| ½-½ | 28 | 2003 | Tampa op | B28 Sicilian, O'Kelly Variation |
| 2. H N Sunna vs D Ludwig |
| 0-1 | 73 | 2003 | Tampa op | C78 Ruy Lopez |
| 3. D Ludwig vs N Basallo |
| 1-0 | 59 | 2003 | Tampa op | B75 Sicilian, Dragon, Yugoslav Attack |
| 4. M Marshall vs D Ludwig |
| 0-1 | 38 | 2003 | Tampa op | C32 King's Gambit Declined, Falkbeer Counter Gambit |
| 5. D Ludwig vs M Ritter |
| ½-½ | 55 | 2003 | Tampa op | C60 Ruy Lopez |
| 6. G Trammell vs D Ludwig |
 | 0-1 | 27 | 2004 | 105th US Open | B87 Sicilian, Fischer-Sozin with ...a6 and ...b5 |
| 7. P Pachta vs D Ludwig |
| 0-1 | 59 | 2004 | Wch U14 | E15 Queen's Indian |
| 8. D Ludwig vs R Panjwani |
| 1-0 | 48 | 2004 | Wch U14 | B40 Sicilian |
| 9. Kuzubov vs D Ludwig |
| ½-½ | 19 | 2004 | Wch U14 | E46 Nimzo-Indian |
| 10. D Ludwig vs I Martemianov |
| 1-0 | 41 | 2004 | Wch U14 | B42 Sicilian, Kan |
| 11. I Khairullin vs D Ludwig |
| 0-1 | 39 | 2004 | Wch U14 | C77 Ruy Lopez |
| 12. Le Quang Liem vs D Ludwig |
| 1-0 | 39 | 2004 | Wch U14 | E21 Nimzo-Indian, Three Knights |
| 13. D Ludwig vs D Andreikin |
| ½-½ | 23 | 2004 | Wch U14 | B90 Sicilian, Najdorf |
| 14. D Ludwig vs F Bindrich |
| 1-0 | 43 | 2004 | Wch U14 | B90 Sicilian, Najdorf |
| 15. S Dasari vs D Ludwig |
| 1-0 | 38 | 2004 | Wch U14 | B54 Sicilian |
| 16. D Ludwig vs K R Behmardi |
| 1-0 | 39 | 2004 | Wch U14 | B80 Sicilian, Scheveningen |
| 17. J Becerra Rivero vs D Ludwig |
| 1-0 | 43 | 2005 | HB Global Chess Challenge | B80 Sicilian, Scheveningen |
| 18. G Margvelashvili vs D Ludwig |
| ½-½ | 44 | 2006 | US Masters op | A09 Reti Opening |
| 19. D Rupel vs D Ludwig |
| 0-1 | 74 | 2006 | US Masters op | A52 Budapest Gambit |
| 20. N Harris vs D Ludwig |
| ½-½ | 10 | 2006 | US Masters op | B95 Sicilian, Najdorf, 6...e6 |
| 21. D Ludwig vs M Fouts |
| ½-½ | 72 | 2006 | US Masters op | D10 Queen's Gambit Declined Slav |
| 22. D Ludwig vs K Pohl |
| 1-0 | 51 | 2006 | US Masters op | C18 French, Winawer |
| 23. J Schroer vs D Ludwig |
| ½-½ | 21 | 2006 | US Masters op | A52 Budapest Gambit |
| 24. D Ludwig vs T Aliyev |
| 1-0 | 94 | 2006 | US Masters op | B33 Sicilian |
| 25. D Ludwig vs M Ardaman |
| 1-0 | 36 | 2006 | US Masters op | B00 Uncommon King's Pawn Opening |
Kibitzing
