| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. J Van Der Kooij vs J Bosch |
| 0-1 | 17 |
1986 |
corres NLD | C35 King's Gambit Accepted, Cunningham |
| 2. J Bosch vs Van Wely |
| ½-½ | 41 |
1988 |
Dieren op | B12 Caro-Kann Defense |
| 3. G Timmerman vs J Bosch |
 | 0-1 | 66 |
1988 |
Dieren op | D90 Grunfeld |
| 4. J Bosch vs Dreev |
| 0-1 | 20 |
1989 |
Ch Europe (juniors) | C60 Ruy Lopez |
| 5. Van Wely vs J Bosch |
| ½-½ | 68 |
1989 |
EU-chJ U20 Arnhem | A14 English |
| 6. J Bosch vs S Loeffler |
| 1-0 | 34 |
1991 |
It (b) | C45 Scotch Game |
| 7. J Bosch vs Van Wely |
| 0-1 | 52 |
1992 |
Hyeres op | B86 Sicilian, Fischer-Sozin Attack |
| 8. J Bosch vs G Kacheishvili |
 | 0-1 | 19 |
1993 |
Groningen Chess Festival; GM open | B42 Sicilian, Kan |
| 9. J Bosch vs J Nesterov |
| 1-0 | 32 |
1993 |
Groningen Chess Festival; GM open | A42 Modern Defense, Averbakh System |
| 10. N Davies vs J Bosch |
| 0-1 | 34 |
1993 |
It (open) | A04 Reti Opening |
| 11. M Kaminski vs J Bosch |
| ½-½ | 28 |
1993 |
Groningen Chess Festival; GM open | B32 Sicilian |
| 12. D Zoler vs J Bosch |
| ½-½ | 26 |
1993 |
Groningen Chess Festival; GM open | D21 Queen's Gambit Accepted |
| 13. J Bosch vs S Matveeva |
| 1-0 | 27 |
1993 |
Groningen Chess Festival; GM open | B77 Sicilian, Dragon, Yugoslav Attack |
| 14. J Bosch vs Kharlov |
| 1-0 | 55 |
1993 |
Leeuwarden op | B57 Sicilian |
| 15. G Timmerman vs J Bosch |
| 0-1 | 42 |
1993 |
NED-ch sf | B32 Sicilian |
| 16. M Marsal Valles vs J Bosch |
| ½-½ | 47 |
1993 |
Vilanova op | B00 Uncommon King's Pawn Opening |
| 17. T Hutters vs J Bosch |
| 1-0 | 35 |
1993 |
Groningen Chess Festival; GM open | A38 English, Symmetrical |
| 18. J Bosch vs Piket |
| 0-1 | 30 |
1993 |
Leeuwarden op | C48 Four Knights |
| 19. J Bosch vs V Arbakov |
| 0-1 | 29 |
1993 |
Groningen Chess Festival; GM open | B90 Sicilian, Najdorf |
| 20. J Bosch vs Sosonko |
| ½-½ | 38 |
1994 |
Amsterdam, NL-ch | B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 21. I Sokolov vs J Bosch |
| 0-1 | 35 |
1994 |
Amsterdam, NL-ch | A53 Old Indian |
| 22. J Bosch vs M Van der Werf |
| ½-½ | 22 |
1994 |
Amsterdam, NL-ch | B08 Pirc, Classical |
| 23. H Hoeksema vs J Bosch |
| ½-½ | 11 |
1994 |
Amsterdam, NL-ch | D63 Queen's Gambit Declined, Orthodox Defense |
| 24. Van der Wiel vs J Bosch |
| 1-0 | 37 |
1994 |
Amsterdam, NL-ch | B40 Sicilian |
| 25. R Cifuentes vs J Bosch |
| 1-0 | 92 |
1994 |
Amsterdam, NL-ch | B10 Caro-Kann |