| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. L Cornford vs M Steadman |
| 1-0 | 19 |
1977 |
North Island Ch | C00 French Defense |
| 2. M Steadman vs P R Green |
| 1-0 | 36 |
1977 |
North Island Ch | C50 Giuoco Piano |
| 3. J Cater vs M Steadman |
| 1-0 | 42 |
1978 |
North Island Ch | C05 French, Tarrasch |
| 4. K Jensen vs M Steadman |
| ½-½ | 41 |
1978 |
Labour Weekend Tt | A88 Dutch, Leningrad, Main Variation with c6 |
| 5. R J Sutton vs M Steadman |
| 0-1 | 38 |
1978 |
Labour Weekend Tt | C05 French, Tarrasch |
| 6. M Steadman vs R Davies |
| 0-1 | 48 |
1978 |
North Island Ch | B21 Sicilian, 2.f4 and 2.d4 |
| 7. L Aptekar vs M Steadman |
| 1-0 | 42 |
1978 |
Auckland Open Ch | A15 English |
| 8. M Steadman vs R J Sutton |
| 0-1 | 26 |
1978 |
Auckland Open Ch | C39 King's Gambit Accepted |
| 9. Y Terada vs M Steadman |
 | 0-1 | 24 |
1979 |
World Junior Ch | C89 Ruy Lopez, Marshall |
| 10. J Mounier vs M Steadman |
| 0-1 | 25 |
1979 |
Howick - Pakuranga Open Tt | C18 French, Winawer |
| 11. M Steadman vs H Bennett |
| 1-0 | 27 |
1979 |
2nd Waitemata Tt | B01 Scandinavian |
| 12. P Mataga vs M Steadman |
| ½-½ | 31 |
1979 |
NZ Junior Ch | C18 French, Winawer |
| 13. D Beach vs M Steadman |
| 1-0 | 38 |
1979 |
2nd Waitemata Tt | A02 Bird's Opening |
| 14. M Evans vs M Steadman |
| 0-1 | 31 |
1979 |
North Island Ch | C16 French, Winawer |
| 15. M Steadman vs M Karp |
| ½-½ | 21 |
1979 |
World Junior Ch | C05 French, Tarrasch |
| 16. M Steadman vs K Jensen |
| 0-1 | 29 |
1979 |
North Island Ch | A48 King's Indian |
| 17. M Steadman vs P L Cordue |
| 0-1 | 53 |
1980 |
87th NZ Ch Premier Reserve | B08 Pirc, Classical |
| 18. J Sarfati vs M Steadman |
| ½-½ | 42 |
1980 |
NZL-chB | C05 French, Tarrasch |
| 19. M Steadman vs M Basman |
 | 0-1 | 26 |
1985 |
North Shields | A40 Queen's Pawn Game |
| 20. M Steadman vs D Notley |
| 1-0 | 35 |
1989 |
12th Waitakere Trust Open | C02 French, Advance |
| 21. M Steadman vs L McLaren |
| 1-0 | 54 |
1995 |
North Shore Open | B23 Sicilian, Closed |
| 22. M Steadman vs B Thompson |
 | 1-0 | 25 |
1995 |
North Shore Open | C78 Ruy Lopez |
| 23. N Cummings vs M Steadman |
 | 1-0 | 24 |
1996 |
NZL-ch63 corr | A89 Dutch, Leningrad, Main Variation with Nc6 |
| 24. B Barnard vs M Steadman |
 | 1-0 | 24 |
1997 |
64th NZCCA Ch | C24 Bishop's Opening |
| 25. I Snape vs M Steadman |
| 1-0 | 21 |
2001 |
Smith & Williamson ch-GBR | A13 English |