| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. J Peters vs P Youngworth |
 | 1-0 | 24 | 1976 | USA | B83 Sicilian |
| 2. M Vukcevich vs P Youngworth |
| 1-0 | 43 | 1978 | USA-chT phone | D78 Neo-Grunfeld, 6.O-O c6 |
| 3. P Youngworth vs H Olafsson |
| 0-1 | 34 | 1978 | Lone Pine | E55 Nimzo-Indian, 4.e3, Gligoric System, Bronstein Variation |
| 4. H van Riemsdijk vs P Youngworth |
| 0-1 | 34 | 1978 | Lone Pine | B87 Sicilian, Fischer-Sozin with ...a6 and ...b5 |
| 5. P Youngworth vs K Rogoff |
| 0-1 | 46 | 1978 | Lone Pine | A63 Benoni, Fianchetto, 9...Nbd7 |
| 6. J Whitehead vs P Youngworth |
| ½-½ | 39 | 1978 | Lone Pine | B22 Sicilian, Alapin |
| 7. P Youngworth vs Shamkovich |
| 0-1 | 30 | 1978 | Lone Pine | A62 Benoni, Fianchetto Variation |
| 8. D Verduga vs P Youngworth |
| 1-0 | 43 | 1978 | Lone Pine | B99 Sicilian, Najdorf, 7...Be7 Main line |
| 9. J Loftsson vs P Youngworth |
| 1-0 | 47 | 1978 | Lone Pine | D94 Grunfeld |
| 10. P Youngworth vs J P Erlingsson |
| 1-0 | 27 | 1978 | Lone Pine | A58 Benko Gambit |
| 11. P Youngworth vs C Brasket |
| ½-½ | 46 | 1978 | Lone Pine | D73 Neo-Grunfeld, 5.Nf3 |
| 12. L Day vs P Youngworth |
| 1-0 | 52 | 1979 | Atlantic Open | B10 Caro-Kann |
| 13. P Youngworth vs S Nikolic |
| 0-1 | 74 | 1979 | Lone Pine | A28 English |
| 14. G Ligterink vs P Youngworth |
| 1-0 | 29 | 1979 | Lone Pine | B58 Sicilian |
| 15. M Zlotnikov vs P Youngworth |
| 0-1 | 59 | 1979 | Lone Pine | A36 English |
| 16. P Youngworth vs Petursson |
| 0-1 | 54 | 1979 | Lone Pine | E01 Catalan, Closed |
| 17. V McCambridge vs P Youngworth |
| ½-½ | 29 | 1979 | Lone Pine | D97 Grunfeld, Russian |
| 18. P Youngworth vs E Formanek |
| 0-1 | 29 | 1979 | Lone Pine | A27 English, Three Knights System |
| 19. R Balinas vs P Youngworth |
| 1-0 | 38 | 1979 | Lone Pine | B20 Sicilian |
| 20. P Youngworth vs Denker |
| ½-½ | 32 | 1979 | Lone Pine | E41 Nimzo-Indian |
| 21. J Whitehead vs P Youngworth |
| 0-1 | 37 | 1979 | Lone Pine | B51 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 22. P Youngworth vs J Peters |
| 0-1 | 36 | 1980 | Lone Pine | A62 Benoni, Fianchetto Variation |
| 23. D Rajkovic vs P Youngworth |
| 1-0 | 29 | 1980 | Lone Pine | D90 Grunfeld |
| 24. P Youngworth vs V Liberzon |
| ½-½ | 38 | 1980 | Lone Pine | D86 Grunfeld, Exchange |
| 25. Benjamin vs P Youngworth |
| ½-½ | 24 | 1980 | Lone Pine | E54 Nimzo-Indian, 4.e3, Gligoric System |
Kibitzing
