| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. G Agustsson vs I Aloni |
| ½-½ | 36 | 1954 | Amsterdam Olympiad Final-A | C05 French, Tarrasch |
| 27. G Agustsson vs Barcza |
| 0-1 | 32 | 1954 | Amsterdam Olympiad Final-A | A07 King's Indian Attack |
| 28. Pilnik vs G Agustsson |
| 1-0 | 32 | 1954 | Amsterdam Olympiad Final-A | C90 Ruy Lopez, Closed |
| 29. Keres vs G Agustsson |
| 1-0 | 36 | 1954 | Amsterdam Olympiad Final-A | B11 Caro-Kann, Two Knights, 3...Bg4 |
| 30. P Trifunovic vs G Agustsson |
| ½-½ | 56 | 1954 | Amsterdam Olympiad Final-A | D94 Grunfeld |
| 31. G Agustsson vs K Darga |
| ½-½ | 43 | 1954 | Amsterdam Olympiad Final-A | E04 Catalan, Open, 5.Nf3 |
| 32. G Agustsson vs Filip |
| 0-1 | 45 | 1954 | Amsterdam Olympiad Final-A | C49 Four Knights |
| 33. G Agustsson vs L Prins |
| ½-½ | 37 | 1954 | Amsterdam Olympiad Final-A | C46 Three Knights |
| 34. G Stoltz vs G Agustsson |
| ½-½ | 18 | 1954 | Amsterdam Olympiad Final-A | B12 Caro-Kann Defense |
| 35. F Thorbergsson vs G Agustsson |
| 0-1 | 34 | 1956 | Sigurdsson Memorial | D15 Queen's Gambit Declined Slav |
| 36. G Ilivitsky vs G Agustsson |
| 1-0 | 36 | 1956 | Sigurdsson Memorial | A16 English |
| 37. G Agustsson vs F Olafsson |
| 0-1 | 26 | 1956 | Sigurdsson Memorial | A07 King's Indian Attack |
| 38. Pilnik vs G Agustsson |
| 1-0 | 36 | 1957 | Reykjavik | B71 Sicilian, Dragon, Levenfish Variation |
| 39. G Agustsson vs G Gunnarsson |
| ½-½ | 35 | 1957 | Reykjavik | C48 Four Knights |
| 40. Benko vs G Agustsson |
| 1-0 | 37 | 1957 | Reykjavik | D83 Grunfeld, Grunfeld Gambit |
| 41. G Agustsson vs Stahlberg |
| ½-½ | 43 | 1957 | Reykjavik | A07 King's Indian Attack |
| 42. F Olafsson vs G Agustsson |
| 1-0 | 52 | 1957 | Reykjavik | B75 Sicilian, Dragon, Yugoslav Attack |
| 43. A Gudmundsson vs G Agustsson |
| 1-0 | 43 | 1957 | Reykjavik | A13 English |
| 44. G Agustsson vs G Gudmundsson |
| ½-½ | 19 | 1957 | Reykjavik | C07 French, Tarrasch |
| 45. I Asmundsson vs G Agustsson |
| ½-½ | 52 | 1957 | Reykjavik | D25 Queen's Gambit Accepted |
| 46. G Agustsson vs I Johannsson |
| 1-0 | 35 | 1957 | Reykjavik | C10 French |
| 47. G Palmason vs G Agustsson |
| 1-0 | 33 | 1957 | Reykjavik | D52 Queen's Gambit Declined |
| 48. G Agustsson vs B Johannesson |
| 0-1 | 34 | 1957 | Reykjavik | C46 Three Knights |
| 49. G Agustsson vs I Asmundsson |
| ½-½ | 18 | 1973 | ISL-ch | C01 French, Exchange |
Kibitzing
