| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. R Potter vs B Pehnec |
| 0-1 | 35 | 1957 | 58th US Open | C29 Vienna Gambit |
| 27. G Fuster vs R Potter |
| 1-0 | 40 | 1957 | 58th US Open | E85 King's Indian, Samisch, Orthodox Variation |
| 28. J Coolen vs R Potter |
| 1-0 | 36 | 1960 | corr FIN | C30 King's Gambit Declined |
| 29. R Potter vs R H Steinmeyer |
| 1-0 | 41 | 1961 | corr | B94 Sicilian, Najdorf |
| 30. R H Steinmeyer vs R Potter |
| 1-0 | 41 | 1961 | corr | E75 King's Indian, Averbakh, Main line |
| 31. R Potter vs L Levy |
| 0-1 | 29 | 1967 | 68th US Open | D50 Queen's Gambit Declined |
| 32. R Potter vs N Weinstein |
 | 0-1 | 50 | 1967 | 68th US Open | E70 King's Indian |
| 33. W Goichberg vs R Potter |
| 1-0 | 24 | 1967 | 68th US Open | C10 French |
| 34. R Cross vs R Potter |
| 1-0 | 28 | 1971 | NAmerica-ch1 corr7175 | C43 Petrov, Modern Attack |
| 35. Z Leskowsky vs R Potter |
| 1-0 | 48 | 1971 | cr NAICCC I | C17 French, Winawer, Advance |
| 36. Robert C Morris vs R Potter |
| 1-0 | 24 | 1971 | cr NAICCC I | E77 King's Indian |
| 37. W Muir vs R Potter |
| 1-0 | 30 | 1971 | cr NAICCC I | C45 Scotch Game |
| 38. R Potter vs R Callaghan |
| 0-1 | 34 | 1971 | cr NAICCC I | A01 Nimzovich-Larsen Attack |
| 39. R Potter vs D Gligorich |
| 0-1 | 20 | 1971 | cr NAICCC I | A01 Nimzovich-Larsen Attack |
| 40. R Potter vs R McLellan |
| 0-1 | 34 | 1971 | cr NAICCC I | B89 Sicilian |
| 41. R Potter vs T Mueller |
| 0-1 | 40 | 1971 | cr NAICCC I | B04 Alekhine's Defense, Modern |
| 42. R Potter vs N A Preo |
| 0-1 | 97 | 1971 | cr NAICCC I | C82 Ruy Lopez, Open |
| 43. R Potter vs A Sandor Siklos |
| ½-½ | 28 | 1971 | cr NAICCC I | B09 Pirc, Austrian Attack |
| 44. R Potter vs J Moldovan |
| 0-1 | 73 | 2000 | USA-ch15 prel 07 corr | C18 French, Winawer |
Kibitzing
