| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Van der Wiel vs G Mittelman |
| 1-0 | 38 |
1995 |
Leeuwarden VB | B17 Caro-Kann, Steinitz Variation |
| 2. G Mittelman vs A Malachi |
| 1-0 | 33 |
1996 |
ISR-chT | D78 Neo-Grunfeld, 6.O-O c6 |
| 3. G Mittelman vs A Kovacevic |
| 0-1 | 57 |
1997 |
Biel MTO op | A43 Old Benoni |
| 4. M Brodsky vs G Mittelman |
| 1-0 | 27 |
1997 |
Rishon Le Ziyyon 9798 | B14 Caro-Kann, Panov-Botvinnik Attack |
| 5. B Kantsler vs G Mittelman |
| ½-½ | 41 |
1999 |
Israeli League | E94 King's Indian, Orthodox |
| 6. G Mittelman vs Deep Junior |
| ½-½ | 33 |
2000 |
Israeli League | E08 Catalan, Closed |
| 7. E Lund vs G Mittelman |
| 0-1 | 62 |
2000 |
Politiken Cup | E75 King's Indian, Averbakh, Main line |
| 8. G Mittelman vs Sutovsky |
| 0-1 | 32 |
2000 |
ISR-chT | D96 Grunfeld, Russian Variation |
| 9. Shredder vs G Mittelman |
| 1-0 | 36 |
2000 |
Israeli League | E62 King's Indian, Fianchetto |
| 10. G Mittelman vs DeFirmian |
| 0-1 | 33 |
2000 |
Politiken Cup | A33 English, Symmetrical |
| 11. G Mittelman vs T Gelashvili |
| 1-0 | 26 |
2000 |
EU-ch 1st | E10 Queen's Pawn Game |
| 12. Hertneck vs G Mittelman |
| ½-½ | 38 |
2000 |
EU-ch 1st | A26 English |
| 13. G Mittelman vs Psakhis |
| ½-½ | 53 |
2000 |
Politiken Cup | E15 Queen's Indian |
| 14. R Tozer vs G Mittelman |
| 0-1 | 37 |
2000 |
Politiken Cup | E75 King's Indian, Averbakh, Main line |
| 15. G Mittelman vs REBEL |
| ½-½ | 44 |
2000 |
Israeli League | D13 Queen's Gambit Declined Slav, Exchange Variation |
| 16. G Mittelman vs V Malakhov |
| ½-½ | 61 |
2000 |
EU-ch 1st | D30 Queen's Gambit Declined |
| 17. A Greenfeld vs G Mittelman |
| 1-0 | 27 |
2001 |
Israel Open Ch | E94 King's Indian, Orthodox |
| 18. B Avrukh vs G Mittelman |
| 1-0 | 32 |
2001 |
Israel Open Ch | D49 Queen's Gambit Declined Semi-Slav, Meran |
| 19. G Mittelman vs D Zifroni |
| ½-½ | 21 |
2001 |
Israel Open Ch | E04 Catalan, Open, 5.Nf3 |
| 20. G Mittelman vs Jonkman |
| 0-1 | 70 |
2001 |
Israel Open Ch | D27 Queen's Gambit Accepted, Classical |
| 21. G Mittelman vs E Matsuura |
| ½-½ | 3 |
2003 |
7th Itau Cup | D10 Queen's Gambit Declined Slav |
| 22. D Fernando vs G Mittelman |
| ½-½ | 42 |
2003 |
7th Itau Cup | B12 Caro-Kann Defense |
| 23. J F Cubas vs G Mittelman |
| ½-½ | 40 |
2003 |
7th Itau Cup | B12 Caro-Kann Defense |
| 24. G Mittelman vs G Lebredo |
| 1-0 | 54 |
2003 |
7th Itau Cup | E11 Bogo-Indian Defense |
| 25. G Mittelman vs C Braga |
| 1-0 | 38 |
2003 |
7th Itau Cup | E63 King's Indian, Fianchetto, Panno Variation |