| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. G Botterill vs J M Ripley |
 | 1-0 | 40 | 1970 | British Championship | D94 Grunfeld |
| 27. P C Griffiths vs G Botterill |
| ½-½ | 55 | 1970 | British Championship | E45 Nimzo-Indian, 4.e3, Bronstein (Byrne) Variation |
| 28. G Botterill vs M Corden |
| 1-0 | 28 | 1970 | British Championship | B05 Alekhine's Defense, Modern |
| 29. R Eales vs G Botterill |
| ½-½ | 62 | 1970 | British Championship | E00 Queen's Pawn Game |
| 30. A H Williams vs G Botterill |
| 0-1 | 41 | 1970 | British Championship | B08 Pirc, Classical |
| 31. G Botterill vs R G Wade |
| ½-½ | 15 | 1970 | British Championship | A04 Reti Opening |
| 32. G Botterill vs W Hartston |
| 1-0 | 78 | 1970 | British Championship | A25 English |
| 33. M Fuller vs G Botterill |
| 1-0 | 31 | 1970 | British Championship | B20 Sicilian |
| 34. G Botterill vs V Knox |
| 0-1 | 33 | 1970 | British Championship | A00 Uncommon Opening |
| 35. D B Pritchard vs G Botterill |
| 0-1 | 42 | 1970 | British Championship | E45 Nimzo-Indian, 4.e3, Bronstein (Byrne) Variation |
| 36. G Botterill vs J Littlewood |
| ½-½ | 36 | 1970 | British Championship | B33 Sicilian |
| 37. G Botterill vs Timman |
| ½-½ | 42 | 1970 | Netherlands - England | E45 Nimzo-Indian, 4.e3, Bronstein (Byrne) Variation |
| 38. Timman vs G Botterill |
| 1-0 | 41 | 1970 | Netherlands - England | A23 English, Bremen System, Keres Variation |
| 39. Keene vs G Botterill |
 | 1-0 | 40 | 1970 | National Club Championship | A09 Reti Opening |
| 40. J H Donner vs G Botterill |
| 0-1 | 56 | 1971 | Cambridge A | D91 Grunfeld, 5.Bg5 |
| 41. G Botterill vs W Hartston |
| 1-0 | 64 | 1971 | Cambridge A | B57 Sicilian |
| 42. Keene vs G Botterill |
| ½-½ | 27 | 1971 | Cambridge A | D80 Grunfeld |
| 43. G Botterill vs E Palacios de la Prida |
| 1-0 | 23 | 1971 | Clare Benedict Cup | B09 Pirc, Austrian Attack |
| 44. G Botterill vs Timman |
| 1-0 | 29 | 1971 | Clare Benedict Cup | B44 Sicilian |
| 45. G Botterill vs K Klundt |
| 0-1 | 41 | 1971 | England - West Germany | E66 King's Indian, Fianchetto, Yugoslav Panno |
| 46. K Klundt vs G Botterill |
| ½-½ | 40 | 1971 | England - West Germany | B09 Pirc, Austrian Attack |
| 47. R Bellin vs G Botterill |
| 0-1 | 55 | 1971 | Slater Young Masters | C34 King's Gambit Accepted |
| 48. G Botterill vs S Saverymuttu |
| ½-½ | 20 | 1971 | Slater Young Masters | E63 King's Indian, Fianchetto, Panno Variation |
| 49. M Stean vs G Botterill |
| 0-1 | 31 | 1971 | Slater Young Masters | B07 Pirc |
| 50. G Botterill vs A Whiteley |
| ½-½ | 25 | 1971 | Slater Young Masters | A07 King's Indian Attack |
Kibitzing
