| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. E Straat vs R Loman |
| 0-1 | 33 | 1924 | NED-ch | D68 Queen's Gambit Declined, Orthodox Defense, Classical |
| 27. E Straat vs Euwe |
  | 0-1 | 26 | 1925 | NED-ch | E92 King's Indian |
| 28. E Straat vs G de Brie |
| 1-0 | 32 | 1925 | NED-ch Team | E72 King's Indian |
| 29. E Straat vs J Kersten |
| 0-1 | 36 | 1925 | NED-chT ASC-VAS | D15 Queen's Gambit Declined Slav |
| 30. E Straat vs M Barzin |
| 1-0 | 22 | 1925 | Netherlands - Belgium | D31 Queen's Gambit Declined |
| 31. S Landau vs E Straat |
| ½-½ | 37 | 1929 | Dutch Championship | D67 Queen's Gambit Declined, Orthodox Defense, Bd3 line |
| 32. J Davidson vs E Straat |
| 1-0 | 37 | 1929 | Dutch Championship | D13 Queen's Gambit Declined Slav, Exchange Variation |
| 33. E Straat vs Euwe |
| 0-1 | 26 | 1929 | Dutch Championship | D37 Queen's Gambit Declined |
| 34. H Weenink vs E Straat |
| 1-0 | 58 | 1929 | Dutch Championship | D11 Queen's Gambit Declined Slav |
| 35. E Straat vs R Loman |
| 0-1 | 31 | 1929 | Dutch Championship | D63 Queen's Gambit Declined, Orthodox Defense |
| 36. Olland vs E Straat |
| 1-0 | 38 | 1929 | Dutch Championship | C22 Center Game |
| 37. E Straat vs K Geus |
| 0-1 | 34 | 1929 | Dutch Championship | D51 Queen's Gambit Declined |
| 38. J van den Bosch vs E Straat |
| 1-0 | 22 | 1929 | Dutch Championship | E21 Nimzo-Indian, Three Knights |
| 39. E Straat vs E Mulder |
| 1-0 | 38 | 1929 | Dutch Championship | E21 Nimzo-Indian, Three Knights |
| 40. E Straat vs J Montezinos |
| 1-0 | 23 | 1930 | VAS-ASC | B74 Sicilian, Dragon, Classical |
| 41. A Hamming vs E Straat |
| 1-0 | 35 | 1931 | DD-ASC | B73 Sicilian, Dragon, Classical |
Kibitzing
