| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. N J Patterson vs S Reuben |
| ½-½ | 23 | 1969 | Castlebar | B31 Sicilian, Rossolimo Variation |
| 27. S Reuben vs L Blackstock |
| 1-0 | 55 | 1969 | Castlebar | A10 English |
| 28. S Reuben vs D B Pritchard |
| 1-0 | 42 | 1969 | Castlebar | A65 Benoni, 6.e4 |
| 29. S Reuben vs Huebner |
| 0-1 | 30 | 1969 | Castlebar | E75 King's Indian, Averbakh, Main line |
| 30. S Reuben vs N A Perkins |
| ½-½ | 51 | 1969 | Middlesex County Championship | E30 Nimzo-Indian, Leningrad |
| 31. S Reuben vs B Green |
 | ½-½ | 52 | 1970 | British Championship | A10 English |
| 32. P H Clarke vs S Reuben |
| ½-½ | 25 | 1970 | British Championship | E34 Nimzo-Indian, Classical, Noa Variation |
| 33. S Reuben vs B Eley |
| 0-1 | 57 | 1970 | British Championship | A21 English |
| 34. V Knox vs S Reuben |
| 1-0 | 53 | 1970 | British Championship | B32 Sicilian |
| 35. S Reuben vs R O'Kelly |
| 0-1 | 40 | 1970 | British Championship | A34 English, Symmetrical |
| 36. J M Ripley vs S Reuben |
| 0-1 | 40 | 1970 | British Championship | B32 Sicilian |
| 37. D Lees vs S Reuben |
| ½-½ | 67 | 1970 | British Championship | B32 Sicilian |
| 38. S Reuben vs M J Haygarth |
| ½-½ | 27 | 1970 | British Championship | A21 English |
| 39. M Corden vs S Reuben |
| 1-0 | 31 | 1970 | British Championship | B22 Sicilian, Alapin |
| 40. S Reuben vs J A Sutton |
| ½-½ | 16 | 1970 | British Championship | A84 Dutch |
| 41. Adorjan vs S Reuben |
| 1-0 | 15 | 1973 | England | B30 Sicilian |
| 42. G Szaszvari vs S Reuben |
| 0-1 | 17 | 1976 | Surrey Congress | A01 Nimzovich-Larsen Attack |
| 43. Chandler vs S Reuben |
| ½-½ | 52 | 1976 | Atkins Memorial op | B22 Sicilian, Alapin |
| 44. S Reuben vs C Crouch |
| 0-1 | 24 | 1978 | Aaronson Masters | D50 Queen's Gambit Declined |
| 45. H D MacPherson vs S Reuben |
| 1-0 | 18 | 1978 | Aaronson Masters | A14 English |
| 46. C Duxbury vs S Reuben |
| 0-1 | 55 | 1984 | Regency Masters | B25 Sicilian, Closed |
| 47. C Ward vs S Reuben |
| 1-0 | 78 | 1994 | Menchik Memorial Open | E20 Nimzo-Indian |
| 48. S Reuben vs Bronstein |
| ½-½ | 22 | 1994 | Menchik Memorial Open | A13 English |
| 49. N Dickenson vs S Reuben |
| 1-0 | 48 | 1994 | Menchik Memorial Open | E49 Nimzo-Indian, 4.e3, Botvinnik System |
| 50. P Fenn vs S Reuben |
| ½-½ | 11 | 1994 | Menchik Memorial Open | B30 Sicilian |
Kibitzing
