| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. M Muzychuk vs N Kostina |
| 1-0 | 97 | 2012 | European Championship (Women) | B18 Caro-Kann, Classical |
| 27. N Kostina vs K Ozturk |
| 1-0 | 41 | 2012 | European Championship (Women) | A07 King's Indian Attack |
| 28. S Guramishvili vs N Kostina |
| 1-0 | 57 | 2012 | European Championship (Women) | A61 Benoni |
| 29. N Kostina vs S Gvetadze |
| 0-1 | 51 | 2012 | European Championship (Women) | B31 Sicilian, Rossolimo Variation |
| 30. N Kostina vs Z Bogut |
| 0-1 | 44 | 2012 | 42nd Bosna Open A | A60 Benoni Defense |
| 31. Goryachkina vs N Kostina |
| 0-1 | 48 | 2012 | Satka Autumn op (Women) | D37 Queen's Gambit Declined |
| 32. N Kostina vs R Hovhannisyan |
| 0-1 | 35 | 2012 | Rector Cup Rapid | B12 Caro-Kann Defense |
| 33. A Zhigalko vs N Kostina |
| 1-0 | 46 | 2013 | Chigorin Memorial | A04 Reti Opening |
| 34. N Kostina vs F Gadzhiev |
| 1-0 | 48 | 2013 | Chigorin Memorial | B91 Sicilian, Najdorf, Zagreb (Fianchetto) Variation |
| 35. E Ovod vs N Kostina |
| 1-0 | 75 | 2013 | Chigorin Memorial | D31 Queen's Gambit Declined |
| 36. N Kostina vs A Mamyrbay |
| 1-0 | 45 | 2013 | Chigorin Memorial | B91 Sicilian, Najdorf, Zagreb (Fianchetto) Variation |
| 37. S Tologontegin vs N Kostina |
| 1-0 | 53 | 2013 | Chigorin Memorial | B12 Caro-Kann Defense |
| 38. N Kostina vs Y Yakovlev |
| 1-0 | 29 | 2013 | Chigorin Memorial | B28 Sicilian, O'Kelly Variation |
| 39. A Sadovsky vs N Kostina |
| 0-1 | 60 | 2013 | Chigorin Memorial | A01 Nimzovich-Larsen Attack |
| 40. N Kostina vs D Svetlov |
| 0-1 | 40 | 2013 | Chigorin Memorial | B10 Caro-Kann |
| 41. P Bublei vs N Kostina |
| 1-0 | 36 | 2013 | Chigorin Memorial | D31 Queen's Gambit Declined |
| 42. N Kostina vs Khismatullin |
| 0-1 | 22 | 2014 | Chigorin Mem Blitz | B91 Sicilian, Najdorf, Zagreb (Fianchetto) Variation |
| 43. P Martynov vs N Kostina |
| 1-0 | 41 | 2015 | Rilton Cup 2015/16 | A45 Queen's Pawn Game |
| 44. N Kostina vs J Sarwer |
| 1-0 | 43 | 2015 | Rilton Cup 2015/16 | B00 Uncommon King's Pawn Opening |
| 45. F Cukrowski vs N Kostina |
| 1-0 | 58 | 2015 | Rilton Cup 2015/16 | B16 Caro-Kann, Bronstein-Larsen Variation |
| 46. N Kostina vs M Percivaldi |
| ½-½ | 58 | 2015 | Rilton Cup 2015/16 | C12 French, McCutcheon |
| 47. N Kostina vs D Kolbus |
| ½-½ | 82 | 2016 | Rilton Cup 2015/16 | B90 Sicilian, Najdorf |
| 48. Z Low vs N Kostina |
| 1-0 | 36 | 2016 | Rilton Cup 2015/16 | B10 Caro-Kann |
| 49. N Kostina vs J Haug |
| 0-1 | 22 | 2016 | Rilton Cup 2015/16 | B12 Caro-Kann Defense |
| 50. J Ask vs N Kostina |
| 0-1 | 34 | 2016 | Rilton Cup 2015/16 | B13 Caro-Kann, Exchange |
Kibitzing
