| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. K Ozols vs W Leonhardt |
| ½-½ | 73 | 1956 | Australian Championship 1956/57 | A04 Reti Opening |
| 2. W Leonhardt vs G Koshnitsky |
| 0-1 | 65 | 1957 | Australian Championship 1956/57 | E60 King's Indian Defense |
| 3. J Hanks vs W Leonhardt |
| 1-0 | 54 | 1957 | Australian Championship 1956/57 | D97 Grunfeld, Russian |
| 4. H Klass vs W Leonhardt |
| 1-0 | 19 | 1958 | Australian Championship 1958/59 | B06 Robatsch |
| 5. W Leonhardt vs A Rudzitis |
| 1-0 | 47 | 1958 | Australian Championship 1958/59 | A48 King's Indian |
| 6. J R Phillips vs W Leonhardt |
| 1-0 | 24 | 1958 | Australian Championship 1958/59 | B71 Sicilian, Dragon, Levenfish Variation |
| 7. W Leonhardt vs V Lapin |
| 0-1 | 37 | 1959 | Australian Championship 1958/59 | A46 Queen's Pawn Game |
| 8. Y Shewchyk vs W Leonhardt |
| 1-0 | 38 | 1959 | Australian Championship 1958/59 | B62 Sicilian, Richter-Rauzer |
| 9. W Leonhardt vs P Foster |
| 1-0 | 46 | 1959 | Australian Championship 1958/59 | D37 Queen's Gambit Declined |
| 10. L Awdiew vs W Leonhardt |
| 1-0 | 39 | 1959 | Australian Championship 1958/59 | B06 Robatsch |
| 11. W Leonhardt vs P Tymoshenko |
| 1-0 | 48 | 1959 | Australian Championship 1958/59 | E67 King's Indian, Fianchetto |
| 12. F Crowl vs W Leonhardt |
| 1-0 | 28 | 1959 | Australian Championship 1958/59 | A42 Modern Defense, Averbakh System |
| 13. W Leonhardt vs W Poder |
| 1-0 | 52 | 1959 | Australian Championship 1958/59 | D12 Queen's Gambit Declined Slav |
| 14. W Bleicher vs W Leonhardt |
| 1-0 | 46 | 1959 | Australian Championship 1958/59 | D35 Queen's Gambit Declined |
| 15. W Leonhardt vs P Kalinovsky |
| ½-½ | 50 | 1959 | Australian Championship 1958/59 | C42 Petrov Defense |
| 16. D Pike vs W Leonhardt |
| ½-½ | 38 | 1959 | Australian Championship 1958/59 | C41 Philidor Defense |
| 17. W Leonhardt vs G Koshnitsky |
| 0-1 | 55 | 1959 | Australian Championship 1958/59 | B06 Robatsch |
| 18. Averbakh vs W Leonhardt |
| 1-0 | 51 | 1960 | Australian Championship | D36 Queen's Gambit Declined, Exchange, Positional line, 6.Qc2 |
| 19. J S Purdy vs W Leonhardt |
| 1-0 | 29 | 1962 | Australian Championship 1962/63 | B32 Sicilian |
| 20. L S Fell vs W Leonhardt |
| 1-0 | 40 | 1962 | Australian Championship 1962/63 | D43 Queen's Gambit Declined Semi-Slav |
| 21. W Leonhardt vs R Lilly |
| ½-½ | 41 | 1963 | Australian Championship 1962/63 | C45 Scotch Game |
| 22. C Wells vs W Leonhardt |
| 0-1 | 56 | 1963 | Australian Championship 1962/63 | B06 Robatsch |
| 23. W Leonhardt vs J Rush |
| 1-0 | 41 | 1963 | Australian Championship 1962/63 | D00 Queen's Pawn Game |
| 24. W Leonhardt vs T Hay |
| 0-1 | 24 | 1963 | Australian Championship 1962/63 | B56 Sicilian |
| 25. W Leonhardt vs G Koshnitsky |
| 1-0 | 44 | 1963 | Australian Championship 1962/63 | A53 Old Indian |
Kibitzing
