Game |
| Result | Moves |
Year | Event/Locale | Opening |
501. W N Watson vs A D Martin |
| 1-0 | 43 | 1990 | British Championship | B00 Uncommon King's Pawn Opening |
502. Adams vs W N Watson |
 | 1-0 | 32 | 1990 | British Championship | B21 Sicilian, 2.f4 and 2.d4 |
503. W N Watson vs A Jones |
| 1-0 | 31 | 1990 | British Championship | B45 Sicilian, Taimanov |
504. Plaskett vs W N Watson |
  | 1-0 | 62 | 1990 | British Championship | E81 King's Indian, Samisch |
505. W N Watson vs R Tozer |
| ½-½ | 34 | 1990 | British Championship | B01 Scandinavian |
506. M Basman vs W N Watson |
| 0-1 | 42 | 1990 | British Championship | A00 Uncommon Opening |
507. B Adler vs W N Watson |
| ½-½ | 29 | 1990 | Lyon Open | E77 King's Indian |
508. B Carlier vs W N Watson |
| ½-½ | 23 | 1990 | Lyon Open | A05 Reti Opening |
509. J Cortes Moyano vs W N Watson |
| 0-1 | 33 | 1990 | Lyon Open | B72 Sicilian, Dragon |
510. C Ohl vs W N Watson |
| 0-1 | 39 | 1990 | Lyon Open | A10 English |
511. W N Watson vs B Barth Sahl |
| 0-1 | 31 | 1990 | Lyon Open | C91 Ruy Lopez, Closed |
512. W N Watson vs Jansa |
| 1-0 | 38 | 1991 | Herning | B47 Sicilian, Taimanov (Bastrikov) Variation |
513. Van der Wiel vs W N Watson |
| 0-1 | 49 | 1991 | Mondorf Masters Open | B72 Sicilian, Dragon |
514. W N Watson vs J Littlewood |
  | 1-0 | 41 | 1991 | London | C91 Ruy Lopez, Closed |
515. J Sloth vs W N Watson |
 | 0-1 | 34 | 1991 | Herning | A04 Reti Opening |
516. R Stone vs W N Watson |
| ½-½ | 14 | 1991 | Troll Masters | E90 King's Indian |
517. M Cebalo vs W N Watson |
| 1-0 | 37 | 1991 | Herning | E97 King's Indian |
518. A Fishbein vs W N Watson |
| ½-½ | 32 | 1991 | Herning | A21 English |
519. F Hellers vs W N Watson |
| ½-½ | 31 | 1991 | Herning | B77 Sicilian, Dragon, Yugoslav Attack |
520. J Sorensen vs W N Watson |
| 0-1 | 39 | 1991 | Herning | B72 Sicilian, Dragon |
521. W N Watson vs E Mortensen |
| 1-0 | 38 | 1991 | Herning | B43 Sicilian, Kan, 5.Nc3 |
522. W N Watson vs F Pedersen |
| 1-0 | 24 | 1991 | Herning | B17 Caro-Kann, Steinitz Variation |
523. W N Watson vs K Berg |
| ½-½ | 23 | 1991 | Herning | B18 Caro-Kann, Classical |
524. W N Watson vs Shabalov |
| ½-½ | 33 | 1991 | Gausdal Troll Masters | B93 Sicilian, Najdorf, 6.f4 |
525. W N Watson vs Shirov |
| ½-½ | 20 | 1991 | Gausdal Troll Masters | B09 Pirc, Austrian Attack |