| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. G Koushik vs R Sangma |
| 0-1 | 25 |
2008 |
Commonwealth Championship | E15 Queen's Indian |
| 2. G Koushik vs K Akshat |
| ½-½ | 66 |
2008 |
Commonwealth Championship | A55 Old Indian, Main line |
| 3. P Joshi vs G Koushik |
| ½-½ | 19 |
2008 |
Commonwealth Championship | D76 Neo-Grunfeld, 6.cd Nxd5, 7.O-O Nb6 |
| 4. G Koushik vs J Ramakrishna |
| 1-0 | 42 |
2008 |
Commonwealth Championship | A44 Old Benoni Defense |
| 5. G West vs G Koushik |
| ½-½ | 72 |
2008 |
Commonwealth Championship | B23 Sicilian, Closed |
| 6. G Koushik vs R S Santhosbaala |
| ½-½ | 43 |
2008 |
Commonwealth Championship | E97 King's Indian |
| 7. G Koushik vs K Nadig |
| 1-0 | 30 |
2008 |
Commonwealth Championship | D90 Grunfeld |
| 8. K Priyadharshan vs G Koushik |
| 1-0 | 51 |
2008 |
Commonwealth Championship | B76 Sicilian, Dragon, Yugoslav Attack |
| 9. G Koushik vs Guillaume Lamard |
| ½-½ | 59 |
2010 |
WYCC Open U14 | A13 English |
| 10. G Koushik vs G Palchun |
| 0-1 | 62 |
2010 |
WYCC Open U14 | E11 Bogo-Indian Defense |
| 11. G Koushik vs G Nasuta |
| 1-0 | 35 |
2010 |
WYCC Open U14 | A49 King's Indian, Fianchetto without c4 |
| 12. A Aghaei vs G Koushik |
| 0-1 | 31 |
2010 |
WYCC Open U14 | E80 King's Indian, Samisch Variation |
| 13. G Koushik vs N Petrov |
| 0-1 | 60 |
2010 |
WYCC Open U14 | A10 English |
| 14. P Grandadam vs G Koushik |
| 0-1 | 25 |
2010 |
WYCC Open U14 | E98 King's Indian, Orthodox, Taimanov, 9.Ne1 |
| 15. G Koushik vs Matan Poleg |
| 1-0 | 26 |
2010 |
WYCC Open U14 | A45 Queen's Pawn Game |
| 16. Tran Tuan Minh vs G Koushik |
| 1-0 | 60 |
2010 |
WYCC Open U14 | B06 Robatsch |
| 17. G Koushik vs F Boscolo |
| ½-½ | 55 |
2010 |
WYCC Open U14 | A45 Queen's Pawn Game |
| 18. R Grib vs G Koushik |
| 1-0 | 75 |
2010 |
WYCC Open U14 | C84 Ruy Lopez, Closed |
| 19. Alexander Monev vs G Koushik |
| 0-1 | 61 |
2010 |
WYCC Open U14 | A10 English |
| 20. S Sjugirov vs G Koushik |
 | 0-1 | 53 |
2011 |
World Junior Championships | C78 Ruy Lopez |
| 21. S Prasannaa vs G Koushik |
| 0-1 | 41 |
2011 |
World Junior Championships | B67 Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 8...Bd7 |
| 22. G Koushik vs V Rasulov |
 | 0-1 | 60 |
2011 |
World Junior Championships | A46 Queen's Pawn Game |
| 23. G Koushik vs S P Sethuraman |
 | 1-0 | 61 |
2011 |
World Junior Championships | E15 Queen's Indian |
| 24. G Koushik vs S Vidit |
| 0-1 | 54 |
2011 |
World Junior Championships | B67 Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 8...Bd7 |
| 25. D Swiercz vs G Koushik |
| 1-0 | 51 |
2011 |
World Junior Championships | C78 Ruy Lopez |