| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. Haizhou Xu vs D Ludwig |
| 0-1 | 44 | 2008 | Open 18-wycc | B98 Sicilian, Najdorf |
| 27. I Saric vs D Ludwig |
| 1-0 | 30 | 2008 | Open 18-wycc | B62 Sicilian, Richter-Rauzer |
| 28. D Ludwig vs J Plenca |
| ½-½ | 34 | 2008 | Open 18-wycc | B90 Sicilian, Najdorf |
| 29. B Posedaru vs D Ludwig |
| 0-1 | 46 | 2008 | Open 18-wycc | D12 Queen's Gambit Declined Slav |
| 30. D Ludwig vs T H Toufighi |
| ½-½ | 37 | 2008 | Open 18-wycc | C05 French, Tarrasch |
| 31. Manh Tien Tran vs D Ludwig |
| ½-½ | 40 | 2008 | Open 18-wycc | A07 King's Indian Attack |
| 32. D Ludwig vs Qun Ma |
| ½-½ | 38 | 2008 | Open 18-wycc | B50 Sicilian |
| 33. V Kulakov vs D Ludwig |
 | 0-1 | 38 | 2008 | Open 18-wycc | E14 Queen's Indian |
| 34. D Ludwig vs D Howell |
| ½-½ | 43 | 2008 | Open 18-wycc | C99 Ruy Lopez, Closed, Chigorin, 12...cd |
| 35. E Can vs D Ludwig |
| 1-0 | 27 | 2008 | Open 18-wycc | B22 Sicilian, Alapin |
| 36. B Lopez vs D Ludwig |
| ½-½ | 38 | 2009 | USCL | B90 Sicilian, Najdorf |
| 37. N Leve vs D Ludwig |
| 0-1 | 30 | 2012 | World Open | B53 Sicilian |
| 38. Stripunsky vs D Ludwig |
| ½-½ | 82 | 2012 | World Open | A46 Queen's Pawn Game |
| 39. D Ludwig vs J Plew |
| 1-0 | 32 | 2012 | World Open | E33 Nimzo-Indian, Classical |
| 40. Y Shulman vs D Ludwig |
| 1-0 | 21 | 2012 | World Open | E11 Bogo-Indian Defense |
| 41. D Ludwig vs E Romanov |
| ½-½ | 51 | 2012 | World Open | A56 Benoni Defense |
| 42. E Karavade vs D Ludwig |
| 1-0 | 44 | 2012 | World Open | A09 Reti Opening |
| 43. D Ludwig vs E Iturrizaga |
| ½-½ | 23 | 2012 | World Open | E38 Nimzo-Indian, Classical, 4...c5 |
Kibitzing
