| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 276. H Grooten vs D Pikula |
| 0-1 | 68 | 2001 | 1st Chess Week | E11 Bogo-Indian Defense |
| 277. T Held vs H Grooten |
| 0-1 | 40 | 2001 | 1st Chess Week | B22 Sicilian, Alapin |
| 278. H Grooten vs P Schuurman |
| ½-½ | 10 | 2001 | 1st Chess Week | E97 King's Indian |
| 279. J Steckner vs H Grooten |
| 0-1 | 45 | 2001 | 1st Chess Week | A62 Benoni, Fianchetto Variation |
| 280. H Grooten vs V Meijers |
| 1-0 | 35 | 2001 | 1st Chess Week | D50 Queen's Gambit Declined |
| 281. H Grooten vs T Ernst |
| 1-0 | 54 | 2002 | Bad Wildbad op | D80 Grunfeld |
| 282. L Lejarre vs H Grooten |
| 0-1 | 35 | 2002 | Avoine op 17th | B18 Caro-Kann, Classical |
| 283. H Grooten vs W Cazzaniga |
| 1-0 | 41 | 2002 | Bratto Open | E92 King's Indian |
| 284. A Bertino vs H Grooten |
| 0-1 | 37 | 2002 | Bratto Open | E12 Queen's Indian |
| 285. H Grooten vs M Cebalo |
| 0-1 | 80 | 2002 | Bratto Open | A61 Benoni |
| 286. M Preiss vs H Grooten |
| 1-0 | 31 | 2002 | Bratto Open | A10 English |
| 287. H Grooten vs L Tirrito |
| ½-½ | 67 | 2002 | Bratto Open | E11 Bogo-Indian Defense |
| 288. G Moncelli vs H Grooten |
| 0-1 | 51 | 2002 | Bratto Open | B12 Caro-Kann Defense |
| 289. P Schuurman vs H Grooten |
| ½-½ | 11 | 2002 | Bratto Open | E15 Queen's Indian |
| 290. H Grooten vs P Mola |
| 0-1 | 54 | 2002 | Bratto Open | E12 Queen's Indian |
| 291. P Lovati vs H Grooten |
| ½-½ | 66 | 2002 | Bratto Open | A07 King's Indian Attack |
| 292. W Halser vs H Grooten |
| 0-1 | 50 | 2002 | Graz Open | B13 Caro-Kann, Exchange |
| 293. H Grooten vs F Wegerer |
| 1-0 | 36 | 2002 | Graz Open | D37 Queen's Gambit Declined |
| 294. H Grooten vs V Burmakin |
| 1-0 | 71 | 2002 | Graz Open | D36 Queen's Gambit Declined, Exchange, Positional line, 6.Qc2 |
| 295. V Eingorn vs H Grooten |
| 1-0 | 42 | 2002 | Graz Open | A15 English |
| 296. H Grooten vs M Stuhlik |
| 1-0 | 38 | 2002 | Graz Open | A41 Queen's Pawn Game (with ...d6) |
| 297. D Zoler vs H Grooten |
| 0-1 | 55 | 2002 | Graz Open | E12 Queen's Indian |
| 298. V Babula Sr vs H Grooten |
| 1-0 | 34 | 2002 | Graz Open | E38 Nimzo-Indian, Classical, 4...c5 |
| 299. H Grooten vs H Teske |
| ½-½ | 28 | 2002 | Graz Open | D38 Queen's Gambit Declined, Ragozin Variation |
| 300. H Pilaj vs H Grooten |
| 0-1 | 45 | 2002 | Graz Open | A46 Queen's Pawn Game |
Kibitzing
