| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. W S Gilman vs H Ohman |
 | 0-1 | 30 | 1921 | Match Game 3 of 4 | C14 French, Classical |
| 2. W S Gilman vs H Ohman |
| 0-1 | 33 | 1921 | Match Game 1 of 4 | C01 French, Exchange |
| 3. H Ohman vs RE Spaulding |
| 1-0 | 50 | 1924 | Nebraska State Championship | C53 Giuoco Piano |
| 4. Alekhine vs H Ohman |
| ½-½ | 68 | 1924 | Simul, 38b | D67 Queen's Gambit Declined, Orthodox Defense, Bd3 line |
| 5. H Ohman vs G Buck |
 | 1-0 | 15 | 1931 | Omaha | C34 King's Gambit Accepted |
| 6. H Ohman vs D Saxton |
| 0-1 | 36 | 1940 | Omaha City Championship | A03 Bird's Opening |
| 7. D Saxton vs H Ohman |
| 1-0 | 33 | 1940 | Omaha City Championship | D61 Queen's Gambit Declined, Orthodox, Rubinstein Attack |
| 8. Fine vs H Ohman |
| 1-0 | 35 | 1940 | 41st US Open | D23 Queen's Gambit Accepted |
| 9. H Steiner vs H Ohman |
| 1-0 | 43 | 1940 | 41st US Open | B73 Sicilian, Dragon, Classical |
| 10. E Marchand vs H Ohman |
| 1-0 | 62 | 1940 | 41st US Open | A07 King's Indian Attack |
| 11. D Saxton vs H Ohman |
| 1-0 | 15 | 1947 | Omaha Chess Team Playoff | E00 Queen's Pawn Game |
| 12. A C Ludwig vs H Ohman |
| 1-0 | 25 | 1948 | Omaha City Championship - prelim game | D51 Queen's Gambit Declined |
| 13. H Ohman vs A C Ludwig |
| 0-1 | 22 | 1949 | 2nd Nebraska Open | A00 Uncommon Opening |
| 14. J Spence vs H Ohman |
| ½-½ | 64 | 1949 | 2nd Nebraska Open | A90 Dutch |
| 15. H Ohman vs H Steiner |
| 0-1 | 47 | 1950 | 51st US Open | A21 English |
| 16. M Fox vs H Ohman |
| 1-0 | 33 | 1950 | 51st US Open | B74 Sicilian, Dragon, Classical |
| 17. H Ohman vs C C Crittenden |
| 0-1 | 27 | 1953 | 54th US Open | D14 Queen's Gambit Declined Slav, Exchange Variation |
| 18. H Ohman vs B E Owens |
| 0-1 | 21 | 1959 | 60th US Open | A02 Bird's Opening |
| 19. G Ramirez vs H Ohman |
| 0-1 | 35 | 1959 | 60th US Open | C43 Petrov, Modern Attack |
| 20. H Ohman vs R Ault |
| 0-1 | 33 | 1959 | 60th US Open | A02 Bird's Opening |
| 21. G Abram vs H Ohman |
| ½-½ | 18 | 1959 | 60th US Open | C26 Vienna |
| 22. H Ohman vs P Poschel |
| 0-1 | 32 | 1960 | 61st US Open | A00 Uncommon Opening |
| 23. H Ohman vs J O'Keefe |
| ½-½ | 31 | 1960 | 61st US Open | A02 Bird's Opening |
| 24. H Ohman vs S Lyman |
| 0-1 | 25 | 1960 | 61st US Open | A02 Bird's Opening |
| 25. A Sandrin vs H Ohman |
| 1-0 | 20 | 1960 | 61st US Open | B10 Caro-Kann |
Kibitzing
