| page 2 of 20; games 26-50 of 492 |
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| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. R Hendriks vs J Jens |
| 0-1 | 26 | 1998 | VAM Hoogeveen Open | B87 Sicilian, Fischer-Sozin with ...a6 and ...b5 |
| 27. J Jens vs R Adamson |
| 1-0 | 33 | 1998 | VAM Hoogeveen Open | C18 French, Winawer |
| 28. Stellwagen vs J Jens |
| 1-0 | 46 | 1998 | VAM Hoogeveen Open | B01 Scandinavian |
| 29. J Jens vs R Hartoch |
| ½-½ | 11 | 1998 | VAM Hoogeveen Open | B06 Robatsch |
| 30. M de Jong vs J Jens |
| ½-½ | 15 | 1998 | VAM Hoogeveen Open | B50 Sicilian |
| 31. J Jens vs Westerinen |
| ½-½ | 10 | 1998 | VAM Hoogeveen Open | C10 French |
| 32. J Jens vs A Kohler |
| 1-0 | 21 | 1999 | Keres mem op | C41 Philidor Defense |
| 33. J Jens vs R Luijnenburg |
| 1-0 | 38 | 1999 | Keres mem op | B70 Sicilian, Dragon Variation |
| 34. J Jens vs A Dgebuadze |
| 0-1 | 40 | 1999 | Keres mem op | C18 French, Winawer |
| 35. A Pietrow vs J Jens |
| 0-1 | 19 | 1999 | Keres mem op | B20 Sicilian |
| 36. E van den Dikkenberg vs J Jens |
| 0-1 | 20 | 1999 | Keres mem op | B53 Sicilian |
| 37. J Jens vs J van Ruitenburg |
| 1-0 | 29 | 1999 | NED-ch U20 | C61 Ruy Lopez, Bird's Defense |
| 38. M Solleveld vs J Jens |
| 1-0 | 50 | 1999 | NED-ch U20 | B93 Sicilian, Najdorf, 6.f4 |
| 39. R Janssen vs J Jens |
| 1-0 | 59 | 1999 | NED-ch U20 | E97 King's Indian |
| 40. J Jens vs B Kommer |
| ½-½ | 44 | 1999 | NED-ch U20 | B50 Sicilian |
| 41. S Rijnaarts vs J Jens |
| 0-1 | 36 | 1999 | NED-ch U20 | B50 Sicilian |
| 42. J Jens vs L van Beek |
| ½-½ | 29 | 1999 | NED-ch U20 | C72 Ruy Lopez, Modern Steinitz Defense, 5.O-O |
| 43. A Keessen vs J Jens |
| 1-0 | 46 | 1999 | NED-ch U20 | E98 King's Indian, Orthodox, Taimanov, 9.Ne1 |
| 44. J Jens vs J Heltzel |
| 1-0 | 80 | 1999 | NED-ch U20 | C92 Ruy Lopez, Closed |
| 45. P Span vs J Jens |
| ½-½ | 25 | 1999 | NED-ch U20 | B01 Scandinavian |
| 46. D Hodge vs J Jens |
| 1-0 | 22 | 1999 | Glorney Cup U20 | C05 French, Tarrasch |
| 47. J Jens vs K Buytaert |
| 1-0 | 25 | 1999 | Glorney Cup U20 | E54 Nimzo-Indian, 4.e3, Gligoric System |
| 48. J Lamorelle vs J Jens |
| 1-0 | 57 | 1999 | Glorney Cup U20 | C02 French, Advance |
| 49. J Jens vs P Stehno |
| 1-0 | 40 | 1999 | Glorney Cup U20 | B07 Pirc |
| 50. E Frew vs J Jens |
| 0-1 | 55 | 1999 | Glorney Cup U20 | B53 Sicilian |
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| page 2 of 20; games 26-50 of 492 |
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Kibitzing
