| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. J Tarjan vs D Amneus |
 | 1-0 | 23 | 1966 | Los Angeles | C39 King's Gambit Accepted |
| 2. S Telingator vs J Tarjan |
| 0-1 | 34 | 1966 | Casual game | D52 Queen's Gambit Declined |
| 3. T Weinberger vs J Tarjan |
| 1-0 | 25 | 1966 | Pacific Southwest Open | E80 King's Indian, Samisch Variation |
| 4. J Tarjan vs Benko |
| 0-1 | 40 | 1966 | 67th US Open | B80 Sicilian, Scheveningen |
| 5. J Tarjan vs D Fulton |
| 0-1 | 31 | 1966 | 67th US Open | B14 Caro-Kann, Panov-Botvinnik Attack |
| 6. E McCormick vs J Tarjan |
| 1-0 | 44 | 1966 | 67th US Open | B53 Sicilian |
| 7. R W Schutt vs J Tarjan |
| ½-½ | 30 | 1966 | 67th US Open | D47 Queen's Gambit Declined Semi-Slav |
| 8. J Tarjan vs B Gross |
| 1-0 | 32 | 1966 | 67th US Open | B03 Alekhine's Defense |
| 9. T Weinberger vs J Tarjan |
| 1-0 | 46 | 1967 | Santa Monica Masters Invitational | D31 Queen's Gambit Declined |
| 10. T Weinberger vs J Tarjan |
| 1-0 | 27 | 1968 | Long Beach Open | E65 King's Indian, Fianchetto, Yugoslav, 7.O-O |
| 11. T Weinberger vs J Tarjan |
| 1-0 | 63 | 1968 | West Coast Open | D02 Queen's Pawn Game |
| 12. J Tarjan vs T Weinberger |
| 0-1 | 55 | 1968 | San Bernardino Open | B07 Pirc |
| 13. H A Buczko vs J Tarjan |
| 0-1 | 26 | 1968 | 69th US Open | B03 Alekhine's Defense |
| 14. J Tarjan vs Browne |
| 1-0 | 27 | 1968 | 69th US Open | C16 French, Winawer |
| 15. J Tarjan vs Larsen |
| 0-1 | 34 | 1968 | 69th US Open | B61 Sicilian, Richter-Rauzer, Larsen Variation, 7.Qd2 |
| 16. R Byrne vs J Tarjan |
| 1-0 | 30 | 1968 | 69th US Open | D07 Queen's Gambit Declined, Chigorin Defense |
| 17. J Tarjan vs R Shean |
| 1-0 | 40 | 1968 | 69th US Open | B93 Sicilian, Najdorf, 6.f4 |
| 18. R J Gross vs J Tarjan |
| ½-½ | 18 | 1968 | 69th US Open | E17 Queen's Indian |
| 19. J Tarjan vs D Fritzinger |
 | 1-0 | 32 | 1968 | 69th US Open | B40 Sicilian |
| 20. L Kaufman vs J Tarjan |
| 1-0 | 56 | 1968 | 69th US Open | B73 Sicilian, Dragon, Classical |
| 21. J Tarjan vs Browne |
| 0-1 | 30 | 1969 | USA-ch U18 playoff | B98 Sicilian, Najdorf |
| 22. Browne vs J Tarjan |
| ½-½ | 32 | 1969 | USA-ch U18 playoff | C70 Ruy Lopez |
| 23. Browne vs J Tarjan |
| 0-1 | 38 | 1969 | USA-ch U18 playoff | C04 French, Tarrasch, Guimard Main line |
| 24. J Tarjan vs Browne |
| ½-½ | 41 | 1969 | USA Jch plof m | B23 Sicilian, Closed |
| 25. J Tarjan vs A Neyman |
| 1-0 | 38 | 1969 | World Student Team Championship qual-3 | B50 Sicilian |
Kibitzing
