| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. Shyaam Nikhil P vs G B Harshavardhan |
| 1-0 | 86 | 2016 | IIFL Wealth Mumbai Open 2016/17 | B43 Sicilian, Kan, 5.Nc3 |
| 2. A Gupta vs G B Harshavardhan |
| 1-0 | 56 | 2018 | Kolkata Open | E01 Catalan, Closed |
| 3. G B Harshavardhan vs M Karthikeyan |
| 0-1 | 41 | 2019 | Asian Continental | A50 Queen's Pawn Game |
| 4. Xueqiang Guang vs G B Harshavardhan |
| 0-1 | 19 | 2019 | Asian Continental | B56 Sicilian |
| 5. G B Harshavardhan vs R Sadhwani |
| 1-0 | 44 | 2019 | Asian Continental | E91 King's Indian |
| 6. X Xu vs G B Harshavardhan |
| 1-0 | 32 | 2019 | Asian Continental | E21 Nimzo-Indian, Three Knights |
| 7. G B Harshavardhan vs Z Xu |
| 0-1 | 39 | 2019 | Asian Continental | E32 Nimzo-Indian, Classical |
| 8. J P Gomez vs G B Harshavardhan |
| 1-0 | 49 | 2019 | Asian Continental | E44 Nimzo-Indian, Fischer Variation, 5.Ne2 |
| 9. G B Harshavardhan vs A Winkelman |
| 1-0 | 23 | 2019 | Asian Continental | B32 Sicilian |
| 10. G B Harshavardhan vs S Bilguun |
 | 0-1 | 26 | 2019 | Asian Continental | A50 Queen's Pawn Game |
| 11. G B Harshavardhan vs C Aravindh |
| 0-1 | 92 | 2019 | Asian Continental Blitz | B90 Sicilian, Najdorf |
| 12. Pavan Teja Sharma U Shiva vs G B Harshavardhan |
| ½-½ | 67 | 2019 | 5th IIFL Wealth Mumbai Open 2019/20 | B67 Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 8...Bd7 |
| 13. G B Harshavardhan vs N Yakubboev |
| 1-0 | 21 | 2020 | 5th IIFL Wealth Mumbai Open 2019/20 | D06 Queen's Gambit Declined |
| 14. S Vaibhav vs G B Harshavardhan |
| ½-½ | 35 | 2020 | 5th IIFL Wealth Mumbai Open 2019/20 | C77 Ruy Lopez |
| 15. G B Harshavardhan vs A Abdisalimov |
| 1-0 | 57 | 2020 | 5th IIFL Wealth Mumbai Open 2019/20 | A40 Queen's Pawn Game |
| 16. Y T Taher vs G B Harshavardhan |
| ½-½ | 74 | 2020 | 5th IIFL Wealth Mumbai Open 2019/20 | A18 English, Mikenas-Carls |
| 17. G B Harshavardhan vs Deepan Chakkravarthy J |
| 0-1 | 34 | 2020 | 5th IIFL Wealth Mumbai Open 2019/20 | A50 Queen's Pawn Game |
| 18. A Mirzoev vs G B Harshavardhan |
| ½-½ | 38 | 2020 | 5th IIFL Wealth Mumbai Open 2019/20 | E60 King's Indian Defense |
| 19. G B Harshavardhan vs Shyaam Nikhil P |
| ½-½ | 15 | 2020 | 5th IIFL Wealth Mumbai Open 2019/20 | E11 Bogo-Indian Defense |
| 20. G B Harshavardhan vs V Neverov |
| ½-½ | 65 | 2020 | 12th Chennai Open | E91 King's Indian |
| 21. G Mitrabha vs G B Harshavardhan |
| 1-0 | 53 | 2020 | 12th Chennai Open | E02 Catalan, Open, 5.Qa4 |
| 22. G B Harshavardhan vs D Gukesh |
| ½-½ | 83 | 2020 | 34th Cannes Open | D38 Queen's Gambit Declined, Ragozin Variation |
| 23. M Petrosyan vs G B Harshavardhan |
| 1-0 | 66 | 2021 | PNWCC Super G60 Apr Gp1 | A06 Reti Opening |
| 24. G B Harshavardhan vs Sengupta |
| ½-½ | 35 | 2022 | Indian Championship | D20 Queen's Gambit Accepted |
| 25. H Bharathakoti vs G B Harshavardhan |
| 1-0 | 101 | 2022 | Indian Championship | C48 Four Knights |
Kibitzing
