| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. N Birtwistle vs R Almond |
| 0-1 | 46 | 2011 | British Championship | D35 Queen's Gambit Declined |
| 27. G O'Toole vs N Birtwistle |
| 0-1 | 57 | 2011 | British Championship | A58 Benko Gambit |
| 28. N Birtwistle vs M Brown |
| ½-½ | 92 | 2011 | British Championship | D92 Grunfeld, 5.Bf4 |
| 29. M Yurenok vs N Birtwistle |
| 1-0 | 50 | 2011 | British Championship | A45 Queen's Pawn Game |
| 30. N Birtwistle vs J P McKenna |
| 0-1 | 32 | 2011 | British Championship | E70 King's Indian |
| 31. L Rabbitte vs N Birtwistle |
| 1-0 | 35 | 2011 | British Championships Sheffield | B23 Sicilian, Closed |
| 32. K Arkell vs N Birtwistle |
| 1-0 | 41 | 2017 | 4NCL 2016/2017 | E69 King's Indian, Fianchetto, Classical Main line |
| 33. S Milliet vs N Birtwistle |
| 1-0 | 55 | 2018 | 4NCL 2017/18 | B39 Sicilian, Accelerated Fianchetto, Breyer Variation |
| 34. N Birtwistle vs K Arkell |
| 0-1 | 48 | 2022 | Chessable British Championship | B11 Caro-Kann, Two Knights, 3...Bg4 |
| 35. I Rathbone-Jones vs N Birtwistle |
| 1-0 | 33 | 2022 | Chessable British Championship | A45 Queen's Pawn Game |
| 36. N Birtwistle vs M Waddington |
| 1-0 | 36 | 2022 | Chessable British Championship | B22 Sicilian, Alapin |
| 37. A Ethelontis vs N Birtwistle |
| 0-1 | 70 | 2022 | Chessable British Championship | A20 English |
| 38. N Birtwistle vs V Stoyanov |
| 1-0 | 35 | 2022 | Chessable British Championship | C34 King's Gambit Accepted |
| 39. W Claridge-Hansen vs N Birtwistle |
| ½-½ | 24 | 2022 | Chessable British Championship | A20 English |
| 40. N Birtwistle vs J Jackson |
| 0-1 | 27 | 2022 | Chessable British Championship | C26 Vienna |
| 41. G Lane vs N Birtwistle |
| ½-½ | 25 | 2022 | Chessable British Championship | B27 Sicilian |
| 42. N Birtwistle vs K Toma |
| ½-½ | 58 | 2022 | Chessable British Championship | B22 Sicilian, Alapin |
| 43. N Birtwistle vs J Wagg |
| 0-1 | 48 | 2023 | Scarborough Open | B22 Sicilian, Alapin |
| 44. M Ridge vs N Birtwistle |
| 0-1 | 35 | 2023 | Scarborough Open | B36 Sicilian, Accelerated Fianchetto |
| 45. N Birtwistle vs R Ilett |
| 1-0 | 38 | 2023 | Scarborough Open | E17 Queen's Indian |
| 46. N Birtwistle vs P Large |
| 0-1 | 48 | 2023 | Scarborough Open | A04 Reti Opening |
| 47. B Fellowes vs N Birtwistle |
| ½-½ | 33 | 2023 | Scarborough Open | A45 Queen's Pawn Game |
| 48. N Birtwistle vs K Hryshchenko |
| 0-1 | 39 | 2024 | 4NCL 2024/25 | A41 Queen's Pawn Game (with ...d6) |
| 49. E Mirzoeva vs N Birtwistle |
| 1-0 | 32 | 2024 | 4NCL 2024/25 | A57 Benko Gambit |
| 50. H Li vs N Birtwistle |
| ½-½ | 23 | 2025 | 4NCL 2024/25 | B36 Sicilian, Accelerated Fianchetto |
Kibitzing
