| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 26. Mednis vs Feuerstein |
| ½-½ | 40 |
1957 |
US Championship | A15 English |
| 27. Feuerstein vs Seidman |
| 1-0 | 28 |
1957 |
US Championship | A07 King's Indian Attack |
| 28. I Asmundsson vs Feuerstein |
| 0-1 | 41 |
1957 |
WchT U26 04th | A32 English, Symmetrical Variation |
| 29. F Blatny vs Feuerstein |
| 1-0 | 27 |
1957 |
WchT U26 04th | B96 Sicilian, Najdorf |
| 30. Vukcevich vs Feuerstein |
| ½-½ | 62 |
1958 |
WchT U26 fin-A 05th | B01 Scandinavian |
| 31. Tringov vs Feuerstein |
| 1-0 | 56 |
1958 |
WchT U26 fin-A 05th | B00 Uncommon King's Pawn Opening |
| 32. Feuerstein vs B Koch |
| ½-½ | 56 |
1968 |
5.corr ol | A60 Benoni Defense |
| 33. H Engel vs Feuerstein |
| 1-0 | 37 |
1968 |
5.corr ol | A79 Benoni, Classical, 11.f3 |
| 34. M Boysan vs Feuerstein |
| ½-½ | 53 |
1968 |
5.corr ol | B43 Sicilian, Kan, 5.Nc3 |
| 35. Feuerstein vs F Smrcka |
| 0-1 | 24 |
1968 |
5.corr ol | E83 King's Indian, Samisch |
| 36. C Hunter vs Feuerstein |
 | 1-0 | 28 |
1968 |
5.corr ol | B42 Sicilian, Kan |
| 37. Feuerstein vs O Smith |
| 1-0 | 51 |
1968 |
5.corr ol | E46 Nimzo-Indian |
| 38. Fischer vs Feuerstein |
 | 1-0 | 34 |
1971 |
Manhattan blitz | B10 Caro-Kann |
| 39. Feuerstein vs W Martz |
| 0-1 | 75 |
1972 |
USA-ch | A47 Queen's Indian |
| 40. J Benjamin vs Feuerstein |
 | 1-0 | 25 |
1976 |
New York | A04 Reti Opening |
| 41. K Hayward vs Feuerstein |
| ½-½ | 51 |
1991 |
First National Team Championship corres. | A03 Bird's Opening |
| 42. K Holzmueller vs Feuerstein |
| 1-0 | 61 |
1991 |
First National Team Championship corres. | B42 Sicilian, Kan |
| 43. Feuerstein vs K Holzmueller |
| 0-1 | 58 |
1991 |
First National Team Championship corres. | E10 Queen's Pawn Game |
| 44. Feuerstein vs J Bovay |
| 1-0 | 31 |
1991 |
First National Team Championship corres. | E10 Queen's Pawn Game |
| 45. Feuerstein vs K Hayward |
| ½-½ | 48 |
1991 |
First National Team Championship corres. | A97 Dutch, Ilyin-Genevsky |
| 46. Feuerstein vs Dzindzichashvili |
| 0-1 | 63 |
1992 |
Somerset | E62 King's Indian, Fianchetto |
| 47. J Bonin vs Feuerstein |
| 1-0 | 28 |
1999 |
Ch Amateur Team, Parsippany (USA) | A57 Benko Gambit |
| 48. John E Roush vs Feuerstein |
| ½-½ | 32 |
2000 |
World Open | B22 Sicilian, Alapin |
| 49. Feuerstein vs R Costigan |
| 0-1 | 55 |
2000 |
World Open | D10 Queen's Gambit Declined Slav |
| 50. B Ryerson vs Feuerstein |
| 0-1 | 42 |
2001 |
29th World Open | B23 Sicilian, Closed |