| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 26. D Grafen vs K Sakai |
| ½-½ | 52 |
2003 |
CM..0.00225 | B33 Sicilian |
| 27. K Sakai vs J Simmelink |
| ½-½ | 28 |
2003 |
WC..F.00002 | B78 Sicilian, Dragon, Yugoslav Attack, 10.castle long |
| 28. K Sakai vs R Van Nieuwenhuizen |
| ½-½ | 23 |
2003 |
CP.2001.S.00002 | C63 Ruy Lopez, Schliemann Defense |
| 29. R Bordukalo vs K Sakai |
| 0-1 | 25 |
2003 |
TE.2001.S.00701 | C37 King's Gambit Accepted |
| 30. M Demyak vs K Sakai |
| 0-1 | 48 |
2003 |
CM..0.00233 | B91 Sicilian, Najdorf, Zagreb (Fianchetto) Variation |
| 31. Antonio Parrilla vs K Sakai |
| 0-1 | 45 |
2003 |
WC.2005.S.00011 | A07 King's Indian Attack |
| 32. K Sakai vs F Halwick |
| 0-1 | 47 |
2003 |
WC..F.00002 | B66 Sicilian, Richter-Rauzer Attack, 7...a6 |
| 33. M Schulze vs K Sakai |
| 0-1 | 46 |
2003 |
CM..0.00225 | B90 Sicilian, Najdorf |
| 34. K Sakai vs W Kordts |
| 1-0 | 40 |
2003 |
CM..0.00208 | B90 Sicilian, Najdorf |
| 35. K Sakai vs Massimo Della Valle |
| ½-½ | 25 |
2003 |
CP.2002.Q.00022 | C42 Petrov Defense |
| 36. K Sakai vs A Shutov |
| 0-1 | 32 |
2003 |
TE.2001.S.00701 | C37 King's Gambit Accepted |
| 37. W F R Braakhuis vs K Sakai |
| 0-1 | 21 |
2003 |
WC..F.00002 | C84 Ruy Lopez, Closed |
| 38. Josip Salai vs K Sakai |
| ½-½ | 36 |
2003 |
WC.2005.S.00011 | D27 Queen's Gambit Accepted, Classical |
| 39. K Sakai vs A Sidenko |
| 1-0 | 82 |
2003 |
WC..F.00002 | C96 Ruy Lopez, Closed |
| 40. K Sakai vs H Krueger |
| 0-1 | 62 |
2003 |
CP.2001.S.00002 | B90 Sicilian, Najdorf |
| 41. K Sakai vs Flo Epiney |
| ½-½ | 29 |
2003 |
SH..0.00002 | C80 Ruy Lopez, Open |
| 42. G Tveit vs K Sakai |
| 0-1 | 27 |
2003 |
CP.2002.Q.00022 | B30 Sicilian |
| 43. Sergio Diaz vs K Sakai |
| ½-½ | 44 |
2003 |
WC.2005.S.00011 | B45 Sicilian, Taimanov |
| 44. K Sakai vs J R Feagin |
| 1-0 | 31 |
2003 |
WC..F.00002 | C78 Ruy Lopez |
| 45. K Sakai vs A Weiss |
| 1-0 | 39 |
2003 |
CM..0.00225 | C66 Ruy Lopez |
| 46. K Sakai vs Luciano Alagna |
| 1-0 | 31 |
2003 |
CM..0.00208 | B90 Sicilian, Najdorf |
| 47. K Sakai vs M Brozio |
| 1-0 | 51 |
2003 |
CP.2002.Q.00022 | B78 Sicilian, Dragon, Yugoslav Attack, 10.castle long |
| 48. K Sakai vs J Fuernkranz |
| ½-½ | 42 |
2003 |
TE.2001.S.00701 | C37 King's Gambit Accepted |
| 49. K Sakai vs Maciej Tritt |
| ½-½ | 34 |
2003 |
CM..0.00233 | B30 Sicilian |
| 50. K Sakai vs G Drogi |
| ½-½ | 57 |
2003 |
WC.2005.S.00011 | B47 Sicilian, Taimanov (Bastrikov) Variation |